I_ Y r FERTILIZER RECOMMEN DATIONS anc COMPUTER PROGRAM KEY used by the SOIL TESTING LABORATORY CIRCULAR 176 REVISED JUNE 1972 AGRICULTURAL EXPERIMENT STATION A U BU RN E. V. Smith, Director U NI V ERS IT Y Auburn, Alabama CONTENTS Page INTRODUCTION 3 CROP CLASSES AND COMPUTER CODE NUMBERS USED IN RECOMMENDATIONS- 4 DEFINITIONS OF SOIL-TEST RATINGS USED FOR PHOSPHORUS (P) AND POTASSIUM (K)6 DESCRIPTION OF SOIL GROUPS ON WHICH P AND K 7 --8 9, 27-30 SOIL-TEST RATINGS ARE BASED-SOIL FERTILITY INDEX ------EXAMPLE OF SOIL TEST REPORT-RECOMMENDATIONS FOR FIELD CROPS, FORAGE -CROPS, AND PASTURES -RECOMMENDATIONS FOR LAWNS, GOLF COURSES, ATHLETIC FIELDS, RECOMMENDATIONS RECOMMENDATIONS RECOMMENDATIONS AND ROADSIDES FOR GARDENS AND FOR SHRUBS AND - 10-22 23-31 TRUCK CROPS --FLOWERS NUTS 31-34 35-36 37-39 FOR FRUITS AND LIME RECOMMENDATION CODES MAGNESIUM RECOMMENDATION CODES 39 39 Ca, AND POUNDS PER ACRE OF SOIL-TEST P, K, Mg ON WHICH SOIL-TEST RATINGS ARE BASED 40 PK CODES FOR THE VARIOUS CROP CLASSES CONVERSION DIFFERENT 41-44 PER ACRE TABLE FOR CHANGING POUNDS OF SOIL-TEST P AND SOIL K TO FERTILITY INDEX FOR THE GROUPS- 45 COMMENTS USED ON SOIL TEST REPORTS 46-55 SECOND PRINTING (REVISION) 5M, JUNE 1972 FERTILIZER RECOMMENDATIONS and COMPUTER PROGRAMS KEY used by the SOIL TESTING LABORATORY J. T. COPE 1 INTRODUCTION SOIL TESTING PROGRAM of Auburn University is a joint program of the Cooperative Extension Service and the Agricultural Experiment Station. The Cooperative Extension Service has primary responsibility for education on soil testing and distribution of supplies. The Agricultural Experiment Station conducts soil test calibration research and operates the soil testing laboratory. Prior to establishment of the Auburn University Soil Testing Laboratory in 1953, fertilizer recommendations were based on average responses from numerous field experiments conducted on Substations, Experiment Fields, and on fields of cooperating farmers which represented major soil types in the State. Data from these and more recent experiments have been used to calibrate chemical soil tests which now offer the most accurate means of determining fertilizer needs of individual fields. Fertility of most soils has been changed so much by fertilization and management practices that general recommendations based on soil type are no longer dependable. This publication presents the fertilizer recommendations of the Auburn University Soil Testing Laboratory for all crops. The inf ormation is organized for the computer program which is used to make recommendations on samples analyzed by this laboratory. Crops are divided into 52 classes, about one-half of which are field or forage crops and one-half are horticultural or special crops. 7THE 'Professor, Department of Agronomy and Soils. The crops are listed on pages 4 and 5 with a summary of information used in classifying crops based on fertility requirements and making recommendations for each crop code. Detailed instructions and recommendations are presented on individual pages for each crop on pages 10 through 39. These pages contain the following information: 1. Crop Code Number and a listing of the crops included in this code number. 2. P and K Requirement Level Number. Crops are divided into three classes based on their P and K requirements. These classes are (1) corn and other grasses (2) cotton and legumes (3) gardens, lawns, shrubs, and other special crops. They are presented on page 40 along with the pounds per acre of soil test P, K, Ca, and Mg used to rate the five different soil groups into soil-test ratings from Very Low to Extremely High. CROP CLASSES AND COMPUTER CODE NUMBERS USED IN RECOMMENDATIONS P and Crop K require- N ment rate level (1) 1 1 1 1 2 2 2 2 2 2 2 2 1 1 1 1 10 1 2 2 1 2 2 2 1 1 1 60 400 60 100 60 0 0 0 0 90 90 120 120 120 150 180 0 100 0 20 80 0 0 0 100 60 100 PK Lime Mg code code code Page No. No. No. No. (2) (3) (3) code No. Crop Crop Field Crops, Forage Crops, and Pastures 01 Perennial summer grass pasture 02 Coastal bermuda hay 03 Perennial winter grass pasture 04- Temporary summer grass pasture 05 Annual legume with winter grass 06 White clover (alone) 07 White clover with summer grass 08 White clover with winter grass 09 Annual legume with summer grass 10 Cotton 11 Cotton-peanut rotation 12 Cotton, sandy soils of North Alabama 13 Corn 14 Corn-peanut rotation 15 Corn, sandy soils of North Alabama 16 Corn or sorghum silage 17 Peanuts 18 Small grain-peanut rotation 19 Annual legumes 20 Southern peas 21 Sugar cane, sorghum, sunflower 22 Alfalfa 23 Kudzu or sericea 24 Soybeans 25 Small grain-soybean rotation 26 Tobacco 27 Temporary winter grass pasture 4 6 3 2 2 1 1 1 3 2 11 2 4 10 4 4 5 11 3 3 4 7 5 5 9 8 2 5 5 1 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 4 1 1 1 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 10 10 11 11 12 12 18 13 14 14 15 15 16 16 17 17 18 18 19 19 19 20 20 21 21 22 22 [4] CROP CLASSES AND COMPUTER CODE NUMBERS USED IN RECOMMENDATIONS (Continued) Crop code No. Crop Coment P and K requirelevel (1) PK Lime Mg code code code Page No. No. No. No. (3) (3) (2) N rate Lawns, Golf Courses, Athletic Fields, and Roadsides 80 12 5 3 40 Bermuda lawn 12 5 3 80 41 Zoysia or St. Augustine lawn 5 3 80 13 42 Centipede lawn 5 3 80 12 43 Winter lawn 14 1 3 400 44 Golf green or tee 12 5 3 120 45 Golf fairway 5 200 12 3 46 Athletic field 1 120 15 3 47 Roadside turf establishment 1 80 12 3 48 Roadside turf maintenance Gardens and Truck Crops 1 18 3 120 60 Home vegetable garden 1 18 3 120 61 Truck crops 2 18 120 3 62 Tomatoes 1 18 3 120 63 Strawberries 4 17 3 120 64 Irish potatoes 65 Watermelons, cantaloupes, beans, 1 19 80 3 squash, okra, sweetpotatoes 1 2 150 3 66 Sweet corn 2 18 100 3 67 Pepper, pimiento Shrubs and Flowers 1 16 3 120 80 Shrubs and perennial flowers 4 16 81 Azaleas, rhododendron, mountain laurel 3 120 1 16 120 3 82 Roses, mums, and annual flowers 1 22 3 240 83 Greenhouse crops, annuals Fruits and Nuts 1 20 * 2 90 Peaches 1 * 20 2 91 Muscadines, scuppernongs 1 20 * 2 92 Apples, pears 1 20 * 2 93 Plums 1 20 ' 2 94 Pecans Research 99 Computer reports pounds per acre of soil-test P, K, Ca, and Mg. * N varies according to age of orchard and is given in a final comment. 1 1 1 1 1 1 1 1 1 2 2 2 2 3 2 2 2 2 2 2 2 3 3 3 3 3 23 23 24 24 25 25 26 26 31 31 32 32 33 33 33 34 34 35 35 36 36 37 37 38 38 39 3. Lime Recommendation Code Number. Crops vary in the amount of acidity they can tolerate and still make top yields. They are divided into five classes based on the pH ranges in which they produce best. These classes are presented on page 39. 4. Magnesium (Mg) Recommendation Code Number. Crops are divided into 3 classes based on their Mg requirements. These Mg Classes are presented on page 39. 5. Nitrogn (N) rate. There is no satisfactory soil test to determine the N supplying power of Alabama soils. Most Alabama soils are low in organic matter and have very low N supplying power. The [5] amount recommended is based on the crop. This rate may be adjusted by growers where experience has shown that higher or lower rates would be more desirable. 6. Phosphorus (P) and Potassium (K) recommendations. These are presented in the table which contains 25 different classifications based on soil-test ratings of P and K. Combinations of P and K recommended are from one of 20 PK Codes presented on pages 41 through 44. Rates of P2 0 5 and K20 in these PK Codes are in most cases based on fertilizer ratios recommended for use in Alabama and are available in mixed fertilizers. The dark numbers in the center of the table are for soils testing medium in P and K. These amounts may be used as a general recommendation when a soil test is not made. 7. Comments used with these crops listed by number. Regular comments are given each time one of these crops appears on a soil test report. Final remarks are given only at the end of a soil test report, to save space. Specific comments related to individual recommendations are listed by number in the tables with the fertilizer recommendations. All comments are presented by number on pages 46 through 55. Code numbers of crops on which comments are used are shown in parentheses following the comments. DEFINITIONS OF SOIL-TEST RATINGS USED FOR PHOSPHORUS (P) AND POTASSIUM (K) Results of chemical tests are used to rate the fertility status of soils for each nutrient element tested. The ratings range from very low to extremely high. They are based on the soil type and the requirements of the crop to be grown. The ratings for P and K are based on the relative yield which may be expected without addition of the nutrient rated, and when all other elements are in adequate supply. Fertilizer recommendations are based on these ratings. Very Low-Soil will yield less than 50 per cent of its potential. Large applications for soil building purposes are usually recommended. Some of the fertilizer should be placed in the drill for row crops. Low-Soil will yield 50 to 75 per cent of its potential. Some fertilizer should be placed in the drill for row crops. Medium-Soil will yield 75 to 100 per cent of its potential. Continued annual applications should be made in this range. On some sandy soils which will not retain much K, it may not be economical to attempt to build beyond this medium level. [6] High-Supply of the nutrient is adequate for the crop. A small amount is usually recommended to maintain this desirable high level. Very High-Supply of the nutrient is more than double the amount considered adequate and further additions should not be made until the level drops back into the high range. Extremely High-Supply of the nutrient is excessive and further additions may be detrimental. Pounds per acre of soil test P, K, Ca, and Mg on which soil-test ratings are based for the different crops and soil groups are presented on page 40. DESCRIPTION OF SOIL GROUPS ON WHICH P AND K SOIL-TEST RATINGS ARE BASED Soil Group 1. Sandy Soils with exchange capacities less than 5 meq. per 100 g. Examples of soil types for this group are Norfolk, Kalmia, Ruston, Orangeburg, and Dothan. Soil Group 2. Clayey Soils not in Group 5 with exchange capacities between 5 and 10 meq. per 100 g. Examples of soil series from this group are Greenville, Lucedale, Savannah, Cecil, Appling, and Colbert. Soil Group 3. Alkaline Soils of the Black Belt and Limestone Valleys contain free calcium carbonate and range in pH from 7.0 to 8.2. They may have exchange capacities up to 30 or 40 meq. per 100 g. Houston, Sumter, and Hollywood are the most common series in this group. They require different laboratory procedures from other groups. Soil Group 4. Sandy Soils of North Alabama are classified separately because crops grown on these soils respond to higher rates of nitrogen than do crops on other soils. Hartsells and Dekalb are the most extensive series in this group. Soil Group 5. Acid Heavy Textured Soils of the Black Belt and Limestone Valleys with exchange capacities greater than 10 meq. per 100 g. Decatur and Dewey series are examples of soils from the limestone valleys. The acid clay soils of the Black Belt frequently have exchange capacities up to 40 meq. per 100 g. The Vaiden, Oetibbeha, and Eutaw series are among the most common of these soils. The dilute acid used for extracting nutrients in the soil test procedure removes less P and more K from these soils at given fertility levels than from soils of the other groups. Mixtures of soil and organic matter used for horticultural crops are also included in this group. [7] SOIL FERTILITY INDEX A fertility index is used to give a more precise evaluation of the P and K status of soils. The index is the relative sufficiency expressed as a percentage of the amount that has been shown by research to be adequate for top yields. The primary value of the index is in its use for keeping soil fertility records. Over a period of years, the index will indicate how much soil building or fertility depletion is resulting from a management program. It is suggested that growers keep records of the indexes for P and K for each field. The relationship between the index and soil test ratings is as follows: Soil test rating Fertility index Pct. 0- 50 Very low 60- 70 Low 80-100 Medium Soil test rating Fertilityindex Pct. 110-200 High 210-400 Very high 410 up Extremely high The conversion table for changing pounds per acre of soil-test P and K to fertility index values is on page 45. These figures are based on research at numerous locations which has shown a curvalinear relationship between soil-test P and K and relative yield. The index values presented on soil test reports for all crops are based on fertility requirements of cotton and legumes. These are calculated from the soil test values for P and K Requirement Level No. 2 on page 40. Index values for P are the same for grasses as for cotton and legumes. Since grasses have lower K requirements than cotton and legumes, the K index values for grasses would be higher than those presented. To convert from the K index presented to a more accurate index for corn and other grasses, for soils rated low or medium add about 20 to the index given. For soils in the high and very high ranges, increase the index given by 50 per cent to convert to the index for corn and other grasses. The K index for gardens, lawns, shrubs, etc. in P and K Requirement Level 3 is the same as that presented for cotton and legumes. Since these crops have higher P requirements than cotton and legumes, the P index values given on soil test reports are higher than if they were based on P requirements of Level 3 crops. To convert from the P index given for these crops to a more accurate index, divide the index given by 2. The reason for using a constant base for calculating the index is to avoid confusion that would result from changing crops on the [8] same soil. The index as used is based on the soil groups and is not affected by the crop to be grown. EXAMPLE OF SOIL TEST REPORT An example of a soil test report based on recommendations in this key is presented on the center pages of this publication, pages 28 and 29. The information printed on the back of the regular soil test report form is presented on pages 27 and 30. This center sheet therefore serves as an example of the report returned to growers who send in soil samples to the Auburn University Soil Testing Laboratory. Charge for this service is $2.00 per sample. [9] RECOMMENDATIONS Crop Code No. 01 FOR FIELD CROPS, FORAGE CROPS, AND PASTURES AND PERENNIAL SUMMER GRASS PASTURE (BMIIA, BERMUDA, DALLIS) Low 60- 0-80 60-30-60 60-40-60 60-60-60 60-80-80 Very low Phosphorus Very high 60- 0-0 (2) 60- 0-0 (2) 60-40-0 60-60-0 60-80-0 High )0- 0 Potassium Medium 60- 0-40 60-30-45 60-40-40 60-60-40 60-80-40 Pounds N-P 05-K20 per acre 2 Very high High 6C 60- 0-80 60-30-60 60-40-80 60-80-80 60-80-80 (2) 60-20-20 (3) 60-45-30 60-60-30 60-80- 0 Medium Low Very low FINAL REMARK: 1. For summer grass pasture, apply 60 lh. of N and P and K as recommended before growth starts and repeat the N application when more growth is desired up to Septemher 1. P and K Requirement Level .------ __-__________1 N Rate ---------------- 60 Lime Recommendation Code No.--------------5 1 Magnesium Recommendation Code No. -------Crop Code No. 02 COASTAL BERMUDA (COASTAL PASTURE PK Code No.-----------4 HAY 01 ALSO GIVEN BY Potassium Medium COMPUTER) Low Very low 4000-300 Phosphorus Very high Very high High Medium Low Very low FINAL REMARK: High 400- 0-0 (2) 400-.0-0 (2) 400- 50-0 400- 75-0 400-100-0 Pounds N-P 20 5-K20 per acre 400- 0-50 400- 0-100 400- 0-200 400- 25-50 (4) 400- 50-50 400- 75-50 400-100-50 400- 25-100 400- 25-200 (4) (4) 400- 50-100 400- 50-200 400-100-100 400-100-200 400-100-100 400-100-200 400- 25-300 (4) 400- 50-300 400-100-300 400-100-300 22. For coastal hermuda hay, apply 100 lh. of N and P and K as recommended hefore spring growth hegins. Apply 100 lb. of N each time hay is cut. P and K Requirement Level Lime Recommendation Code No.-5 Magnesium Recommendation Code No. 1 N Rate -_--------------------- PK Code No.-----------1 --------------- -6 400 [10] Crop Code No. 03 PERENNIAL WINTER GRASS PASTURE (FESCUE, ORCHABDGRASS) Phosphorus Potassium Very high 0-0 (2) 60- 0-0 (2) 60- 50-0 60- 80-0 60-100-0 60- Very high High Medium Low Very low COMMENT: High Medium Low Pounds N-P2 05-K 20 per acre 60- 0- 0 60- 0-50 60- 0-100 (2) 60- 30-30 60- 30-60 60- 40- 80 (3) :60- 60-30 60- 50-50 60- 40- 80 60- 80-40 60- 80-40 60- 80- 80 60-100- 0 60-100-50 60-100-100 Very low 600-100 60- 0-100 60- 50-100 60-100-100 60-120-120 5. Apply 60 to 80 lb. of N and P and K as recommended by September 1. Repeat N application in February. P and K Requirement Level .__________________________ 1 N Rate60 Lime Recommendation Code No.-------------1 PK Code No.-3 Magnesium Recommendation Code No. 1 ---------- Crop Code No. 04 TEMPORARY SUMMER GRASS PASTURE AND JOHNSONGRASS (MILLET, FORAGE SORGHUM, SUDANGRASS, AND JOHNSONGRASS) Phosphorus Potassium Low High Medium Pounds N-P 20 5-K20 per acre 0- 0 (2) 100- 30-30 (3) 100- 60-40 100-100-50 100-120- 0 1001000-60 1000- 90 Very high 100- 0-0 (2) 100- 0-0 (2) 100- 60-0 100-100-01 100-120-0 Very low 1000-120 Very high High Medium Low Very low FINAL REMARK : 100- 40-60 100- 60-60 100- 90-60 100-120-60 100- 45- 90 100- 60- 90 100- 90- 90 100-120-120 100- 40-120 100- 60-12.0 100-120-120 100-140-140 6. For temporary summer grass or Johusongrass, apply 100 lb. of N and P and K as recommended before spring growth begins. Apply 100 lb. of N each time hay is cut or forage is grazed down. 1 P and K Requirement Lime Recommendation Code No.-------------- 1 Magnesium Recommendation Code No.-------- 1 Level ------------------ N Rate ______________100 PK Code No.------------ 2 [11] Crop Code No. 05 ANNUAL LEGUME WITH SMALL GRAIN OR RYECRASS (CRIMSON CLOVER, VETCH, CALEY PEAS WITH OATS, WHEAT, RYE, RYEGRASS) Phosphorus Very high High Medium Low Very low COMMENT: Very high 60- 0-0 (2) 60- 0-0 (2) 60- 60-0 60-100-0 60-120-0 High Pounds 60- 0- 0 (2) 60- 30-30 (3) 60- 60-40 60-100-50 60-120- 0 Potassium Medium Low N-P 20 5-K2 0 per acre 60- 0-60 60- 0- 90 601- 40-60 60- 60-60 60- 90-60 60-120-60 60- 45- 90 60- 60- 90 60- 90- 90 60-1.20-1201 Very low 600-120 50- 40-120 60- 60-120 60-120-120 60-140-140 8. Where legume does not furnish sufficient N for desired growth of grass, apply 60 lb. of N each time forage is grazed down or cut for hay. FINAL REMARK : 7. For reseeding clover or where clover seed are to be harvested, apply 1.0 to 1.5 lb. boron (B) per acre. P and K Requirement Level __________________2 N Rate ________________60 Lime Recommendation Code No.-------------- 1 PK Code No.-------------2 Magnesium Recommendation Code No.-------- 1 Crop Code No. 06 WHITE CLOVER, YUCHI CLOVER Phosphorus Very high Very high High Medium 0- 0-0 (2) 0- 0-0 (2) 0- 80-0 0-120-0 Potassium High Medium Low Pounds N-P 20 5 -K2 0 per acre 0- 0- 0 0- 0-80 0- 0-120 (2) 0- 40-40 0- 40-80 0- 50-100 (3) 0- 80-40 0-120-60 0- 80-80 0-120-60 0- 60-120 0-120-120 Very low 000-180 0-180 Low Very 00-160-160 80-160- low 0-180-0 0-180- 0 0-160-80 0-160-160' 0-180-180 FINAL REMARK: 7. For reseeding clover or where clover seed are to be harvested, apply 1.0 to 1.5 lb. boron (B) per acre. P and K Requirement Lime Recommendation Code No.-------------PK Code -2Magnesium Recommendation Code No.-------------1 Level ------------------ 2 N Rate ----------------- No.- 0 [12] Crop Code No. 07 WHITE CLOVER AND SUMMER GRASS PASTURE (WHITE CLOVER, YUCHI CLOVER, CALEY PEAS WITH DALLIS, BERMUDA, BAHIA) Potassium Phosphorus Very high 0-0 (2) 0- 0-0 (2) 0- 80-0 0-120-0 0-180-0 00- High Medium Low Pounds N-P20-K20O per acre 0- 0 (2) 0- 40-40 (3) 0- 80-40 0-120-60 0-180- 0 00-80 00-120 Very low 000-180 0-180 Very high High Medium Low Very low COMMENT: 0- 40-80 0- 80-80 0-120-60 0-160-80 0- 50-100 0- 60-120 0-120-120 0-160-160 0- 80-160 0-160-160 0-180-180 8. Where legume does not furnish sufficient N for desired growth of grass, apply 50 to 60 lb. of N each time forage is grazed down or cut for hay. FINAL REMARK: 7. For reseeding clover or where clover seed are to be harvested, apply 1.0 to 1.5 lb. boron (B) per acre. P and K Requirement Level -2 N Rate 0 Lime Recommendation Code No. 2 PK Code No. ---------- 1 Magnesium Recommendation Code No.----------- 1 Crop Code No. 08 WHITE CLOVER AND WINTER GRASS PASTURE (WHITE CLOVER, YUCHI CLOVER WITH FESCUE, ORCHARDGRASS) Phosphorus Very high Very high High Medium Low Very low COMMENT: 0- 0-0 0- 0-0 0- 80-0 0-120-0 0-180-0 Potassium High Medium Low Pounds N-P20O-K 20 per acre 0- 0- 0 0- 0-80 0- 0-120 0- 40-40 0- 40-80 0- 50-100 0- 80-40 0- 80-80 0- 60-120 0-120-60 0-120-60 0-120-120 0-180- 0 0-160-80 0-160-160 Very low 0- 0-180 0- 0-180 0- 80-160 0-160-160 0-180-180 9. On grass-legume mixtures, where legume does not furnish sufficient N for desired growth of grass, apply 60 lb. of N in early fall and repeat if needed in early spring. FINAL REMARK: 7. For reseeding clover or where clover seed are to be harvested, apply 1.0 to 1.5 lb. boron (B) per acre. P and K Requirement Level 2 N Rate ---,...--------0 Lime Recommendation Code No. 2 PK Code No.----------1 Magnesium Recommendation Code No. 1 [13] Crop Code No. 09 ANNUAL LEGUME AND SUMMER GRASS PASTURE (BALL, CRIMSON, AND RED CLOVERS; VETCH, AND SERICEA WITH BERMUDA, DALLIS, OR BAHIA) Phosphorus Potassium High Medium Low Pounds N-P 20 5 -KO per acre 0- 0 (2) 0- 30-30 (3) 0- 60-30 0- 80-40 0-100- 0 000-50 00-100 Very high 0-0 (2) 0- 0-0 (2) 0- 50-0 0- 80-0 0-100-0 0- Very low 000-100 0-100 Very high High Medium Low Very low COMMENT: 0- 30-60 0- 50-50 0- 80-40 0-100-50 0- 40- 80 0- 40- 80 0- 80- 80 0-100-100 0- 50-100 0-100-100 0-120-120 8. Where legume does not furnish sufficient N for desired growth of grass, apply 50 to 60 lb. of N each time forage is grazed down or cut for hay. FINAL REMARK: 7. For reseeding clover or where clover seed are to be harvested, apply 1.0 to 1.5 lb. boron (B) per acre. 0 P and K Requirement Level _________________________ 2 N Rate PK Code No. 3 1 Lime Recommendation Code No. Magnesium Recommendation Code No........... 1 Crop Code No. 10 COTTON Phosphorus Potassium Low High Medium Pounds N-P2 0 5-K 2 0 per acre 900- 0 (2) 90- 30-30 900-60 900- 90 Very high 0-0 (2) 90- 0-0 90- Very low 900-120 Very high High Medium Low Very low FINAL REMARK: 90- 40-60 90- 60-60 90- 90-60 90-120-60 90- 45- 90 90- 60- 90 90- 90- 90 90-120-120 90- 40-120 90- 60-120 90-120-120 90-140-140 (2) 90- 60-0 90-100-0 90-120-0 (3) 90- 60-40 90-100-50 90-120- 0 10. For cotton, use the nitrogen (N) rate as a guide. On land where excessive growth has caused problems with late maturity, insects, or boll rot, reduce the N rate 20 to 30 lb. per acre. Where vegetative growth has been inadequate, increase the N rate by this amount. Apply 0.3 lb. of boron (B) per acre in the fertilizer or in the insecticide, spray, or dust. 2 P and K Requirement Level 1 Lime Recommendation Code No............... Magnesium Recommendation Code No......... 2 N Rate _...90 PK Code No. 2 [ 14 ] Crop Code No. 11 COTTON Phosphorus (IN ROTATION BEFORE PEANUTS) Potassium Very high 90900-0 Very high High Medium Low Very low COMMENTS: High Medium Low Pounds N-P2 0s-K 20 per acre 90- 0- 0 90- 0- 80 90- 0-160 Very low 900-160 (2) 0-0 (2) 90- 80-0 90-160-0 90-160-0 (2) 90- 40-40 (3) 90- 80-40 90-160-80 90-160-80 90- 40- 80 90- 80- 80 90-150-100 90-150-100 90- 60-120 90- 80-120 90-160-160 90-160-160 90- 60-120 90- 80-160 90-160-160 90-160-160 Peanuts next year 0-0-0. 13. Apply 250 lb. of gypsum or basic slag at blooming time. (Where calcium is medium and no lime is recommended or where calcium is low and lime is recommended.) 14. Apply 500 lb. of gypsum or basic slag at blooming time. (Where calcium is low and no lime is recommended.) 137. Fertilizer applied to cotton should be sufficient for peanuts next year. FINAL REMARK: 10. For cotton, use the nitrogen (N) rate as a guide. On land where excessive growth has caused problems with late maturity, insects, or boll rot, reduce the N rate 20 to 30 lb. per acre. Where vegetative growth has been inadequate, increase the N rate by this amount. Apply 0.3 lb. of boron (B) per acre in the fertilizer or in the insecticide, spray, or dust. 11. For peanuts, apply 0.3 to 0.5 lb. of boron (B) per acre in the fertilizer, gypsum, or disease control spray or dust. P and K Requirement Level -2 N Rate 90 Lime Recommendation Code No. 1 PK Code No. 11 Magnesium Recommendation Code No.....-........... 2 Crop Code No. 12 COTTON (SANDY SOILS OF NORTH ALABAMA) Phosphorus Very high Very high High Medium Low Very low FINAL REMARK: Potassium High Medium Low Pounds N-P20O-K 2O per acre 1200- 0 1200-60 120- Very low 1200-120 120- 0-0 (2) 1200-0 (2) 120- 60-0 120-100-0 120-120-0 (2) 120- 30-30 (3) 120- 60-40 120-100-50 120-120- 0 120- 40-60 120- 60-60 120- 90-60 120-120-60 0- 90 120- 45- 90 120- 60- 90 120- 90- 90 120-120-120 120- 40-120 120- 60-120 120-120-120 120-140-140 10. For cotton, use the nitrogen (N) rate as a guide. On land where excessive growth has caused problems with late maturity, insects, or boll rot, reduce the N rate 20 to 30 lb. per acre. Where vegetative growth has been inadequate, increase the N rate by this amount. Apply 0.3 lb. of boron (B) per acre in the fertilizer or in the insecticide, spray, or dust. P and K Requirement Level2 N Rate -120 Lime Recommendation Code No. ....---... 1 PK Code No....-..---... 2 Magnesium Recommendation Code No..-....... 2 [15] Crop Code No. 13 CORN Phosphorus Potassium Very high 120- 0-0 Low High Medium Pounds N-P 20 5-K 20 per acre 120- 0-80 120- 0- 0 120- 0-40 Very low 120- 0-80 120-30-60 120-40-80 120-80-80 120-80-80 Very high High Medium Low Very low FINAL REMARK: (2) 120- 0-0 (2) 120-40-0 120-60-0 120-80-0 (2) 120-20-20 (3) 120-45-30 120-60-30 120-80- 0, 120-30-45 120-40-40 120-60-40 120-80-40 120-30-60 120-40-60 120-60-60 120-80-80 15. For corn on sandy soils, apply 3 lb. zinc (Zn) in fertilizer after liming or where pH is above 6.0. (Final remark to be used only on Class 1 and 4 soils.) 1 P and K Requirement Level Lime Recommendation Code No. 1 Magnesium Recommendation Code No............ 1 Crop Code No. 14 CORN (IN N Rate PK Code No. 120 4 ROTATION BEFORE Potassium PEANUTS) Very low 1200-120 PhosphorusPotassium Very high High Medium Low Very low COMMENTS: Very high 0-0 0-0 Medium Low High acre Pounds N-P 20 5-KO per 2 1200- 0 1200-60 1200-120 120120- (2) (2) 120- 60-0 120-120-0 120-120-0 (2) 120- 20-20 120- 30-60 120- 60-60 120-120-80 120-120-80 120- 40- 80 120- 60-120 120-120-120 120-120-120 120- 40- 80 120- 60-120 120-120-120 120-120-120 (3) 120- 60-30 120-120-60 120-120-60 13. Apply 250 lb. of gypsum at blooming time. (Where calcium is medium and no lime is recommended or calcium is low and lime is recommended.) 14. Apply 500 lb. of gypsum at blooming time. (Where calcium is low and no lime is recommended.) 138. Fertilizer applied to corn should be sufficient for peanuts next year. FINAL REMARK: 11. For peanuts, apply 0.3 to 0.5 lb. of boron (B) per acre in the fertilizer, gypsum, or disease control spray or dust. 15. For corn on sandy soils, apply 3 lb. zinc (Zn) per acre in the fertilizer after liming or where pH is above 6.0. 1 P and K Requirement Level..- ...-.. 1 Lime Recommendation Code No. Magnesium Recommendation Code No.--..... 1 N Rate............... 120 PK Code No. -......... 10 [ 16] Crop Code No. 15 CORN (SANDY SOILS OF NORTH Phosphorus High Pounds 150- 0- 0 (2) 150-20-20 (3) 150-45-30 150-60-30 150-80- 0 ALABAMA) Very low 150- 0-80 150-30-60 150-40-80 150-80-80 150-80-80 Very high 150- 0-0 (2) 150- 0-0 (2) 150-40-0 150-60-0 150-80-0 Very high High Medium Low Very low FINAL REMARK: Potassium Low Medium N-P20 5-K20 per acre 150- 0-80 150- 0-40 150-30-45 150-40-40 150-60-40 150-80-40 150-30-60 150-40-60 150-60-60 150-80-80 15. For corn on sandy soils, apply 3 lb. zinc (Zn) per acre in fertilizer after liming or where pH is above 6.0. (On Soils Classes 1 and 4 only.) N Rate _______________150 P and K Requirement Level__________________1 Lime Recommendation Code No.-------------1-PK Code No.------------4 Magnesium Recommendation Code No.---------1 Crop Code No. 16 CORN OR SORGHUM SILAGE Phosphorus Very high Very bigh High Medium Low Very low FINAL REMARK: 180- 0-0 (2) 180- 0-0 (2) 180-40-0 (19) 180-60-0 (19) 180-80-0 (19) Ptassium Low Medium 0 Pounds N-P 20 5 -Kper acre 2 180- 0-80 180- 0-40 180- 0- 0 (16) (16) (2) 180-30-60 180-30-45 180-20-20 (18) (18) (17) 180-40-60 180-40-40 180-45-30 (21) (21) (20) 180-60-60 180-60-40 180-60-30 (21) (21) (20) 180-80-40 180-80-80 180-80- 0 (21) (21) (19) High Very low 180- 0-80 (16) 180-30-60 (18) 180-40-80 (21) 180-80-80 (21) 180-80-80 (21) 15. For corn on sanidy soils, apply 3 lb. zinc (Zn) per acre in fertilizer after liming or where pH is above 6.0. (Final remark to be used only on Class 1 or 4 soils.) NOTE : For grain sorghum silage, reduce N to 120 lb. P and K Requirement Level -Lime Recommendation Code No._________ Magniesium Recommendation Code No. N Rate PK Code No. 180 ._4 [17] Crop Code No. 17 PEANUTS Potassium Phosphorus Very high 000-0 Very high High Medium Low Very low COMMENTS: Low High Medium Pounds N-P2 0 5-K 20 per acre 0- 0- 80 0- 0-40 0- 0-0 Very low 000-120 0-120 (2) 0-0 0- (2) 0-0 00-40 00- 80 (2) 0- 40-0 0- 80-0 0-120-0 (2) 0- 40-0 0- 80-0 0-120-0 0- 40-40 0- 80-40 0-120-60 0- 40- 80 0- 80- 80 0-100-100 0- 50-100 0-100-100 0-120-120 13. Apply 250 lb. of gypsum at blooming time. (Where calcium is medium and no lime is recommended or calcium is low and lime is recommended.) 14. Apply 500 lb. of gypsum at blooming time. (Where calcium is low and no lime is recommended.) FINAL REMARK: 11. For peanuts, apply 0.3 to 0.5 lb. of boron (B) per acre in the fertilizer, gypsum, or disease control spray or dust. NOTE: For Spanish peanuts, recommend 20 lb. N. N Rate P and K Requirement Level 1 1 PK Code No. --Lime Recommendation Code No...... Magnesium Recommendation Code No................ 1 Crop Code No. 18 SMALL GRAIN Phosphorus PEANUT ROTATION 0 5 Very high 100- 0-0 100- 0-0 100- 80-0 100-160-0 100-160-0 Very high High Medium Low Very low COMMENTS: Potassium Medium Low Pounds N-P 2 s-K2O per acre 100- 0- 80 100- 0-160 100- 0- 0 100- 40-40 100- 40- 80 100- 60-120 100- 80- 80 100- 80-120 100- 80-40 100-160-80 100-150-100 100-160-160 100-150-100 100-160-160 100-160-80 High Peanuts next year 0-0-0 Very low 100- 0-160 100- 60-120 100- 80-160 100-160-160 100-160-160 11. For peanuts apply 0.3 to 0.5 lb. of boron (B) per acre in the fertilizer, gypsum, or disease control spray or dust. 13. Apply 250 lb. of gypsum at blooming time. (Where calcium is medium and no hlime is recommended or calcium is low and lime is recommended.) 14. Apply 500 lb. of gypsum at blooming time. (Where calcium is low and no lime is recommended.) 34. For small grains or ryegrass planted for grazing on fallowed fields in early September, apply 100 lb. of N at planting and repeat in early spring. Crops grown for grain only should receive 20 lb. of N in the fall and 60 lb. in the spring. 137. Fertilizer applied to cotton or small grain should be sufficient for peanuts next year. 60 1 N Rate P and K Requirement Level PK Code No........... 11 1I Lime Recommendation Code No. Magnesium Recommendation Code No......... 1 [18] Crop Code No. 19 ANNUAL LEGUMES ANNUAL P n, c ne (CRIMSON' CALEY CLOVER, BALL CLOVER, PEAS, AND LESPEDEZA, VETCH) Very low 00- riluspnurus Very high 000-0 (2) 0-0 (2) Very high High Potassium High Medium Low Pounds N-P20 5-K20 per acre 0- 0- 0 0- 0-50 0- 0-100 (2) 0- 30-30 (3) 0- 30-60 0- 40- 80 0-100 0-100 Medium Low Very low COMMENT: 0- 50-0 0- 80-0 0-100-0 0- 60-30 0- 80-40 0-100- 0 0- 50-50 0- 80-40 0-100-50 0- 40- 80 0- 80- 80 0-100-100 0- 50-100 0-100-100 0-120-120 7. For reseeding clover or where clover seed are to be harvested, apply 1.0 to1.5 lb. boron (B) per acre. -2 N Rate-0 P and K Requirement Level -----------------------3 PK Code No.--Lime Recommendation Code No.----------1 Magnesium Recommendation Code No. 1 --------------- Crop Code No. 20 SOUTHERN PEAS Phosphorus Very high High Medium Low Very low Potassium Low High Medium Pounds N-P 2O5-K2O per acre 20- 0-100 20- 0-50 2.0- 0- 0 (2) 20- 40- 80 20- 30-30 20- 30-60 20- 60-30 20- 80-40 20-100- 0 Very high 0-0 (2) 20- 0-0 20- Very low 20200-100 0-100 (2) 20- 50-0 20- 80-0 20-100-0 (3) 20- 50-50 20- 80-40 20-100-50 20- 40- 80 20- 80- 80 20-100-100 20- 50-100 20-100-100 20-120-120 3 2 P and K Requirement Lime Recommendation Code No.-------------- 1 Magnesium Recommendation Code Level ------------------ No.-------1-- N Rate ._______________20 PK Code No.------------ Crop Code No. 21 GRAIN SORGHUM, SWEET SORGHUM, AND SUNFLOWER SUGAR CANE, Phosphorus Very high Very high High Medium Low Very low 80- 0-0 (2) 80- 0-0 (2) 80-40-0 80-60-0 80-80-0 High 80- 0- 0 (2) 80-20-20 (3) 80-45-30 80-60-30 80-80- 0 Potassium Medium 80- 0-40 80-30-45 80-40-40 80-60-40 80-80-40 Low per, acre Very low 80- 0-801 80-30-60 80-40-80 80-80-80 80-80-80 80 --- 4 Pounds N-P 205-LO2 80- 0-80 80-30-60 80-40-60 80-60-60 80-80-80 N Rate PK Code No.- P and K Requirement Level Lime Recommendation Code No. Magnesium Recommendation Code No.______ [ 19] Crop Code No. 22 ALFALFA Phosphorus Very high High Medium Low Very low COMMENT: Poltassium Very high 00-0 (2) 0- 0-0 (2) 0- 80-0 0-120-0 0-200-0 High Medium Low Pounds N-P 2O5-K 2O per acre 0- 0 -0 0- 0-150 0- 0-240 (2) 0- 40- 80 0- 60-120 0- 40-240 0- 80- 80 0-120- 60 0-200-100 0- 80-160 0-120-120 0-200-200 0-100-200 0-120-240 0-240-240 Very low 00-300 0- 40-300 0- 80-300 0-150-300 0-240-240 23. For alfalfa, apply 3 lh. of horon (B) per acre annually. P and K Requirement Level--------------------------2 N Rate-0 Lime Recommendation Code No. 3 PK Code 1 Magnesium Recommendation Code No.-------------Crop Code No. 23 SERICEA OR KUDZUJ Phosphorus Very high Very high High Medium No.-------------- -7 0-0 (2) 0- 0-0 (2) 00- 40-0 Potassium High Medium Low Pounds N-P2O5-K O per acre 2 0- 0-0 0- 0-40 0- 0- 80 (2) 0- 0-0 0- 0-40 0- 0- 80 (2) 0- 40-0 0- 40-40 0- Very low 000- 0-120 0-120 Low Very low COMMENT: 0- 80-0 0-120-0 0- 80-0 0-120-0 0- 80-40 0-120-60 0- 80- 80 0-100-100 40- 80 50-100 0-100-100 0-120-120 24. Fertilizer recommended should he sufficient for two years. P and K Requirement Level___________________ 2 Lime Recommendation Code No.-------------- 1 Magnesium Recommendation, Code No.---------1 N Rate PK Code No.. ----- 0--5 ---- [ 20] Crop Code No. 24 SOYBEANS Phosphorus Very high High Medium Low Very low Potassium Very high 0-0 (2) 0- 0-0 (2) 0- 40-0 0- 80-0 0-120-0 0- High Medium Low Pounds N-P 2O5-K2O per acre 0- 0-0 0- 0-40 0- 0- 80 (2) 0- 0-0 0- 0-40 0- 0- 80 (2) 0- 40-0 0- 40-40 0- 40- 80 0- 80-0 0- 80-40 0- 80- 80 0-120-0 0-120-60 0-100-100 Very low 000-120 0-120 0- 50-100 0-100-100 0-120-120 0 5 P and K Requirement Level ----------------- Rate --2 N Lime Recommendation Code No.---------1 PK Code No.--Magnesium Recommendation Code No. - -------1 Crop Code No. 25 SMALL GRAIN Phosphorus Very high Very high High Medium Low Very low COMMENTS: - SOYBEAN ROTATION 100- 0-0 (2) 100- 0-0 (2) 100-100-0 100-150-0 100-200-0 Potassium High Medium Low Pounds N-P2O 5-K2 O per acre 100- 0- 0 100- 0- 60 100- 0-100 (2) 100- 50-50 100- 50- 75 100- 50-100 100-100-50 100-150-50 100-200- 0 100-100-100 100-100-150 100-150-100 100-150-150 100-200-100 100-200-200 Very low 1000-150 100- 50-150 100-100-150 100-150-150 100-200-200 Soybeans next year 0-0-0 25. Fertilizer applied to small grain should he sufficient for soybeans. 34. For small grains or ryegrass planted for grazing on fallowed fields in early September, apply 100 lb. of N at planting and repeat in early spring. Crops grown for grain only should receive 20 lb. of N in the fall and 60 lb. in the spring. P and K Requirement 1 Lime Recommendation Code No.------------------1 Magnesium Recommendation Code No.-----------1 Level ------------------ N PK Code Rate --------------- 100 No.------------9 [21] Crop Code No. 26 TOBACCO (FLUE-CURED) Phosphorus Potassium High Medium Low Pounds N-P 20 5-K 20 per acre 60- 60- 60 60- 90- 90 60-100-100' 60-120-120, 60-120-120 60- 60- 90 60-100-150 60-100-150 60-120-180 60-120-180 60- 60-120 60 90-180 60-100-200 60-120-180 60-120-180 Very high 60- 60-60 60- 60-60 60- 90-60 60-120-60 60-120-60 Very low 60- 60-120 60- 90-180 60-100-200 60-120-180 60-120-180 Very high High Medium Low Very low NOTE: Increase N to 140 lb. per acre for Burley and Darkfire tobacco. P and K Requirement Level ----------------1 Lime Recommendation Code No.-------------4 Magnesium Recommendation Code No. 2 N Rate ---- -------- PK Code No. - 60 8 Crop Code No. 27 TEMPORARY WINTER GRASS PASTURE (OATS, RYE, WHEAT, RYEGRASS Phosphorus Potassium Medium Low N-P 20 5-K20 per acre 100- 0-60 10090 Very high 100- 0-0 (2) 100- 0-0 (2) 100- 60-0 100-100-0 100-120-0 Very high High Medium Low Very low COMMENT: High Pounds 100- 0- 0 (2) 100- 30-30 (3) 100- 60-40 100-100-50 100-120- 0 Very low 1000-120 0- 100- 40-60 100- 60-60 100- 90-60 100-120-60 100- 45- 90 100- 60- 90 100- 90- 90 100-120-120 100- 40-120 100- 60-120 100-120-120 100-140-140, 34. For small grains or ryegrass planted for grazing on fallowed fields in early September, apply 100 lb. of N at planting and repeat in early spring. Crops grown for grain only should receive 20 lb. of N in the fall and 60 lb. in the spring. P and K Requirement Level ------------------ 1 N Rate Lime Recommendation Code No.-------------- 1 Magnesium Recommendation Code No.---------1 PK Code ------No.--- -0 OO------ -----2 [ 2] RECOMMENDATIONS FOR LAWNS, GOLF COURSES, ATHLETIC FIELDS, AND Crop Code No. 40 ROADSIDES, BERMUDA LAWN Phosphorus Very high 80- 0-0 (27) Very high High Medium Low Very low FINAL REMARK : Potassium High Medium Low Pounds N-P 2 0 5-K20 per acre 80- 0-40 80- 0-80 80- 0- 0 (27) (28) (29) Very low 80- 0-80 (29) 80- 0-0 (27) 80-40-0 (30) 80-80-0 (33) 80-80-0 (33) 80- 0- 0 (27) 80-40-40 (31) 80-40-40 (31) 80-80-80 (35) 80- 0-40 (28) 80-40-40 (31) 80-80-80 (35) 80-80-80 (35) 80- 0-80 (29) 80-40-80 (32) 80-80-80 (35) 80-80-80 (35) 80- 0-80 (29) 80-40-80 (32) 80-80-80 (35) 80-80-80 (35) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. P and K Requirement Level ------------------ 3 N Rate PK _______________80 Lime Recommendation Code No.-------------- 5 Magnesium Recommendation Code No.----------1 Code No.----------- 12 Crop Code No. 41 ZOYSIA OR ST. AUGUSTINE LAWN Phosphorus Very high Very high High Medium 80- 0-0 (36) Potassium High Medium Low Pounds N-P2 0 5-K20 per acre 80- 0- 0 80- 0-40 80- 0-80 (36) (37) (38) Very low 80- 0-80 (38) 80- 0-0 (27) 80-40-0 80- 0- 0 (27) 80-40-40 (31) 80- 0-40 (28) 80-40-40 (31) 80- 0-80 (29) 80-40-80 (32) 80- 0-80 (29) (30) (33) 80-40-80(32) 80-80-80 (35) 80-80-80 (35) Low Very low FINAL REMARK: 80-80-0 (33) 80-40-40 (31) 80-80-0 80-80-80 (35) 80-80-80 (35) 80-80-80 (35) 80-80-80 (35) 80-80-80 (35) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lh. per 1,000 sq. ft. P and K Requirement Level Lime Recommendation Code No.---------- 5 --Magnesium Recommendation Code No. 1 -----------------3 N Rate _ -------------- PK Code No.-12 _ -___80 [23] Crop Code No. 42 CENTIPEDE LAWN Phosphorus Very high High Medium Low Very low FINAL REMARK: Very high 80- 0-0 (39) 80- 0-0 (41) 80- 0-0 (41) 80-40-0 (43) 80-40-0 (43) Potassium Low Medium High Pounds N-P 2 0 5 -K20 per acre 80- 0-40 80- 0-40 80- 0- 0 (40) (40) (39) 80- 0-40 80- 0-40 80- 0- 0 (42) (42) (41) 80-40-40 80-40-40 80- 0- 0 (44) (44) (41) 80-40-40 80-40-40 80-40-40 (44) (44) (44) 80-40-40 80-40-40 80-40-40 (44) (44) (44) Very low 80- 0-40 (40) 80- 0-40 (42) 80-40-40 (44) 80-40-40 (44) 80-40-40 (44) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. 3 N Rate-80 P and K Requirement Level------------------------13 5 PK Code No.----------Lime Recommendation Code No.-Magnesium Recommendation Code No.---------- 1 Crop Code No. 43 WINTER LAWN (RYEGRASS, FESCUE, AND BLUEGRASS Phosphorus Very high High Medium Low Very low FINAL REMARK : Potassium Very high High Medium Low Very low Pounds N-P O5-K 2O per acre 2 80- 0-0 (45) 80- 0-0 (45) 80-40-0 (48) 80-80-0 (51) 80-80-0 (51) 80- 0- 0 (45) 80- 0- 0 (45) 80-40-40 (49) 80-40-40 (49) 80-80-80 (53) 80- 0-40 (46) 80- 0-40 (46) 80-40-40 (49) 80-40-40 (49) 80-80-80 (53) 80- 0-80 (47) 80- 0-80 (47) 80-40-80 (50) 80-80-80 (53) 80-80-80 (53) 80- 0-80 (47) 80- 0-80 (47) 80-40-80 (50) 80-80-80 (53) 80-80-80 (53) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. 80 N Rate -------- ---------P and K Requirement Level ------------------ 3 Lime Recommendation Code No.----------------5 PK Code No.---------- 12 Magnesium Recommendation Code No.---------1 [24] Crop Code No. 44 GOLF GREEN OR TEE Phosphorus Very high High Medium Low Very low FINAL REMARK : Very high 400- 0-0 (54) 400- 0-0 (54) 400-100-0 (61) 400-200-0 (64) 400-200-0 (64) High Pounds 400- 0- 0 (54) 400- 50- 50 (58) 400-100-100 (62) 400-200-100 (65) 400-200-100 (65) Potassium Medium Low N-P 2 0 5-K20 per acre 400- 0-100 400- 0-200 (56) (55) 400- 50-100 400- 50-200 (59) (60) 400-100-100 400-100-200 (62) (63) 400-200-100 400-200-200 (65) (66) 400-200-100 400-200-200 (65) (66) Very low 0-200 (56) 400- 50-200 (60) 400-100-200 (63) 400-200-200 (66) 400-200-200 (66) 400- 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. P and K Requirement Level ------------------- N Rate _______________400 Lime Recommendation Code No.-------------- 1 PK Code No.----------- 14 Magnesium Recommendationi Code No.-------- 1 Crop Code No. 45 GOLF FAIRWAY Phosphorus Very high Very high High Medium Low Very low FINAL REMARK : High 120- 0- 0 120- 0- 0 120-40-40 120-40-40 120-80-80 Potassium Medium 5-K 2 Pounds N-P2 0 0 Low per acre Very low 120- 0-80 120- 0-80 120-40-80 120-80-80 120-80-80 120- 0-0 120- 0-0 120-40-0 120-80-0 120-80-0 120- 0-40 120- 0-40 120-40-40 120-80-80 120-80-80 120- 0-80 120- 0-80 120-40-801 120-80-80 120-80-80 67. On fairways, apply 60 lb. of N with the recommended rates of P20 5 and K2 0 in the spring. Apply additional N as needed at the rate of 60 lb. per acre per application to maintain desired growth and color. P and K Requirement Level ------------------ 3 N Rate _______________120 Lime Recommendation Code No.-------------- 5 PK Code Magnesium Recommendation Code No.----------------1 No.----------- 12 [25] Crop Code No. 46 ATHLETIC FIELD Phosphorus Very high High Medium Low Very low FINAL REMARK: Very high 200- 0-0 200- 0-0 200-40-0 200-80-0 200-80-0 High Pounds 200- 0- 0 200- 0- 0 200-40-40 200-40-40 200-80-80 Potassium Medium Low N-P 20 5-K20 per acre 200- 0-80 200- 0-40 200- 040 200-40-40 200-40-80 200-80-80, 200-80-80 200-80-80 200-80-80 Very low 200- 0-80 200-080 200-080 200-40-80 200-80-80 200-80-80 68. For athletic fields, nitrogen should be divided into 4 applications at 2-month N (150 lb. amintervals beginning in March. Apply additional N at the rate of monium nitrate or equivalent) per acre if needed to maintain desired growth and color. A football field plus 20 feet on all sides is about 2 acres. P and K Requirement Level___________________________________ N Rate 00 12 PK Code No.Lime Recommendation Code No.--------- 5 Magnesium Recommendation Code No. 1 50 lb. --------------- Crop Code No. 47 ROADSIDE TURF ESTABLISHMENT Potassium Low Very low High Medium Pounds N-P 20 5 -K20 per acre 120- 0- 0 120- 0-80 120- 0-160, 120- 0-160 120- 40-40 120- 40-80 120- 40-160 120- 40-160 120- 80-40 120-160-40 Phosphorus Very high Very high High 1201200-0 0-0 Low Medium low 120- 80-0 120-160-0 120- 80-80 120-160-80 120- 80-160 120-160-160 120- Very 120-160-160120-160-160 80-160- 120-160-0 120-160-40 120-160-80 120-160-160 FINAL REMARKS5: 69. Before planting turf, mix recommended lime, phosphorus, potassium, and 80 lb. nitrogen into surface soil. One month after planting, apply 40 lb. of N. 70. After establishing turf as recommended above, apply 40 lb. each of N, P20 5 and K20 at 6-month intervals. P and K Requirement Level 120 N Rate ----3 --Lime Recommendation Code No._________ -15 Code No.. --1 Magnesium Recommendation Code ---1 No. PK [26] INTERPRETING REPORT OF SOIL TESTS All soil samples are tested for pH, lime requirement, available phosphorus (P), potassium (K) and magnesium (Mg). Calcium is also determined on soils where the crop is to be peanuts, tomatoes or pepper. Soil Test Ratings Soil test results are rated based on soil type and crop to be grown. Very Low (VL) means that the crop may yield less than 50% of its potential if the fertilizer nutrient is not applied. Low (L) means that the crop may yield only 50 to 75% of its potential. Medium (M) soil will yield 75 to 100% of its potential. High (H) is the desirable level which should be the objective of most soil building programs. It means that the supply of the nutrient in the soil is adequate for the crop. A small amount is usually recommended to maintain this level. Very High (VH) means that the soil supply of the nutrient is more than double the amount considered adequate, and further additions are not recommended until the level is lowered. Extremely High (EH) is used for P on soils where the level is excessive and further additions of P may be detrimental. Soil test ratings vary with crop and soil type; therefore, a rating for one crop will not apply to all other crops. Some crops require higher fertility levels than others, and different soil with the same soil test values vary in their capacity to supply nutrients to crops. Soil Fertility Index In addition to the ratings, a fertility index is used for P and K to give a more precise evaluation of fertility status. It indicates how low or how high the nutrient level is within the ratings. The primary value of the index is in its use for keeping soil fertility records. Over a period of years, the index will indicate how much soil building or fertility depletion is resulting from a management program. The index is expressed as a percentage of the amount of P or K in the soil that has been shown by research to be adequate for top yields. The relationship between soil test ratings and fertility indexes is as follows: Soil Test Fertility Soil Test Fertility Rating Index % Rating Index % VL 0-50 H 110-200 L 60-70 VH 210-400 M 80-100 EH 410 up The index values presented for all crops are based on fertility requirements of cotton and legumes. Index values for grasses are not used on soil test reports because the use of 2 scales on the same fields would be confusing. Since grasses have lower K requirements than cotton and legumes, the index values for grasses would be higher than those presented. For gardens, lawns, shrubs, and special crops, the index values given for P are double what they would be if they were based on P requirements of these crops. Fertilizer Recommendations Fertilizer recommendations are for annual applications unless otherwise indicated. Follow these for 3 years and then resample. Rates of P and K recommended for soils testing High or Medium may be applied broadcast or in the row. On soils testing Low or Very Low, some fertlizer should be placed in the drill for row crops. It is suggested that where fertilizer is broadcast on soils rated Low or Very Low the recommended rate be broadcast and an additional 1/ to 1/2 of this amount be applied in the drill when planting row crops. Rates of fertilizer recommended are based on yield response obtained in experiments conducted on soils similar to the one sampled. Phosphorus and potassium recommendations are in most cases in one of the approved P2 0 5 to K20 ratios. Select a fertilizer grade with the ratio recommended. Plant nutrients are listed on a fertilizer tag or label in the order of N-P 2 0 5s-KO For example, 100 pounds of 4-8-16 contains 20. [ 27] REPORT Of AUBURN SOIL TESTINI NAME ADDRESS CITY LAB FARMER BROWN AUBURN, Al RT 2 BOX 147 WAR EAGLE, ALA 36830 SOIL TEST RESULT! GROUP NO. SENDER'S DESIGNATION SAMPLE 501L3 __SOIL______ CALCIUM PHOSPHORUS SSIU pH* HILLSIDE DOVE * Ca P** K*** H 90 9949 1 1 AND P205 SS [IL1 60 H 110 RATES OF K O RECMMENDPED MAY ]E. DOU ZItNC(Z FOR CORN ON S, WHERE PH IS A 9949 .2 r 9950 1r HILLSIDE BIG BOTTOM S ILS AVPLY 3!LB. 6.0. 60 502 H 110 VL 40 M 90 M 80 SP 995011 IN EALY APPLY AN ADDI [IONAL60 LB' OF TO SUPPLY N N EEDS ot' THE CRASS,1 0 GARDEN 995211 PER 100 FT. 0p'ROW 5.6 APPLY 500 H 150 MH90 AT 2 QUATS-8-8 LAWN - 2 H 180 M 90 15-0-15 WHEN ?PLY 6 LB0 PER 1,000 SQ. FT. AMMONIUM NITR ATE OR EQUIV ~LENT) IN MID -SUMME MAKE ADDITION AL APP. LICATI ONS OF 1 LB.I 'T AT A 1 FOR S A C THE NITRC EN (N )RATE IN SECTS, )R BOI LATE. 4ATUR I PROBLEMS WITH WHERE VEGETAT EVE GR )WTH H S BEE NINADEI ZUATE~ OR PER AC .E.IN HE FE RTILIZE OF BORON COTTON, U SE (B) 1.0 TG LIMESTONE E~R P. ACR IS A PROXII TXLY IN THI THE NUMBER OF~ SAHPL OS PR0 ESSED REPC 4. * 1. Sandy soils Sandy lom of North Alabam Heavy. clays * Rating & fertili 2. Looms & light clays 3. Alkaline soils 5. OIL TESTS IVERSITY kBORATORY' MA PAGE 1. 36830 TO BE CROP IGEIM LIME_ COUNTY LEE DISTRICT 2 4/06/72 DATE TO SUPPLY RECOMMENDATIONS GROWN CORN '72 STONE TONS/ACRE Mg 9_______ N 120 Mg P20 5 20 K2 0 20 POUNDS PER ACRE 000 ALTERNATE YEARS R CREpIN THE FERFUILIZEE COTTON '73 FESCUE G 000 AFTER LI ING OR~ 90 40 120 60 60 CLOVER 20 DOLOMITE 60 CR OW'H IFILEGUME GARDEN NTIN4O DOES NOT MAK1 SUFFICIEN] 105 120 QUARTS 60 120 SIDEDRESS ZOYSIA VITH 1 15-I0-150 80 (3 20O 0 40 LOT, INC ~ROWTH BEGINS AND APP Y 1 LB. IFI lORE GROWTH OR BETTER COLOR IS )NTH ENVERVALS. 0 3FL )N LAND WHERE E XES SIVE_GROWTH TE 20 EDUCE THE N RA Y THIS AMOUNT. ICREA NSECTIC IDE SPR U Y OREr ST.O "HE I: IE LB. ESIRE 1 L 1.1 AS CA SED PER A RE. PPLY .3 LB. JIVAL]NT TO 50 LB. PER 1000 SQ. FT. d _ Loor *7.4 or. higher 6.6 -7.3 6.5 or lower Alkaline Neutral Acid -6 N1 - APP~Y LB. lex (percent sufficiency) 4 pounds of N, 8 pounds of P 20z and 16 pounds of K20. Calculate the amount required to supply rates of P20 5 and K20 recommended. Additional nitrogen recommended may be applied as a side or top dressing. Lime Recommendations Lime should not be applied without a reliable soil test. Lime requirement varies for different crops and soils and is determined by a chemical test. The rate recommended is in tons of agricultural limestone with 90% calcium carbonate equivalent and ground so that at least 90 % passes a 10-mesh and 50% passes a 60-mesh sieve. The amount of lime recommended is based on a plow depth of 6 inches. If soil is plowed to a greater depth, the rate of lime should be increased at least 1/6 for each additional inch of depth. For example, if soil is broken to a 9-inch depth the lime rate should be increased 50%. Lime should be thoroughly mixed with the soil of the plow layer rather than turned to the bottom of the furrow. Calcitic and dolomitic limes are about equal in correcting soil acidity (pH). Calcitic lime supplies 700 to 800 pounds of Ca per ton; dolomitic lime supplies about 400 pounds of Ca and 240 pounds of Mg per ton. Where an acid soil tests low in Mg, dolomitic lime is recommended. Most Frequently Recommended Ratios and Minimum Grades N-P 20 5 -KO Minimum N-P'20 5 -K2 0 Minimum Minimum N-P 20 5 -K20 ratios grade ratios grade ratios grade 0-1-1 0-14-14 1-2-3 2-1-1 12- 6- 6 4- 8-12 0-1-2 0-10-20 1-2-4 2-2-1 10-10- 5 4- 8-16 0-2-1 0-16- 8 1-3-2 5-15-10 2-1-2 10- 5-10 1-0-1 10- 0-10 1-4-2 4-16- 8 16- 4- 4 4-1-1 1-1-1 8- 8- 8 1-4-4 5-20-20 16- 4- 8 4-1-2 1-2-2 5-10-10 1-3-3 4-12-12 4-2-1 16- 8- 4 4-4-1 20-20- 5 Examples of Sources of Micronutrients Element and Materials Magnesium (Mg) Dolomitic Limestone Magnesium Sulfate Sulfate PotashMagnesium Boron (B) Borax Fertilizer Borate 46 Fertilizer Borate 65 Solubor % of Pounds for Element 1 lb. Nutrient Element and Materials Iron (Fe) Iron Sulfate Iron Chelate Iron Chelate Iron Chelate Nu-Iron Zinc (Zn) Zinc Sulfate Zinc Oxide Zinc Chelate Nu-Zn % of Pounds for Element 1 lb. Nutrient 35 14 10 6 30 36 68 14 52 3 7 10 17 3 3 2 7 2 12 16 10 11 14 8 6 10 9 7 20 5 20 5 For additional information contact the County Extension Chairman. [ 30 Crop Code No. 48 ROADSIDE TURF MAINTENANCE Phosphorus Very high High Medium Low Very iow Very high 80- 0-0 80- 0-0 80-40-0 80-80-0 80-80-0 Potassium Medium Low High Pounds N-P20 5-K20 per acre 80- 0-40 80- 0-80 80- 0- 0 80- 0-40 80- 0-80 80- 0- 0 80-40-40 80-40-40 80-40-80 80-80-80 80-40-40 80-80-80 80-80-80 80-80-80 80-80-80 3 1 N Rate Very low 80- 0-80 80- 0-80 80-40-80 80-80-80 80-80-80 80 P and K Requirement Level___________ Lime Recommendation Code No.-______ Magnesium Recommendation Code No._ PK Code No.. -12 RECOMME'N DATIONS FOR GARDENS AND TRUCK CROPS Crop Code No. 60 HOME VEGETABLE, GARDEN Phosphorus Very high High Medium Low Very low Very high 120- 0-0 (73) 120- 0-0 (73) 120-120-0 (79) 120-120-0 (79) 120-120-0 (79) Potassium Low High Medium Pounds N-P20 5 -K2 0 per acre 120- 0- 0 120- 0-120 120- 0-120 (73) (74) (74) 120- 60- 60 ,120- 60-120 120- 60-120 (76) (77) (77) 120-120-120 120-120-120 120-120-120 (81) (81) (81) 120-120-120 120-120-120 120-120-120 (81) (81) (81) 120-120-1.20 120-120-120 120-120-120' (81) (81) (81) Very low 120- 0-120, (74) 120- 60-120 (77) 120-120-120 81) 120-120-120 (81) 120-120-120 (81) FINAL COMMENTS : 26. 1.0 ton limestone per acre is approximately equivalent to 50 lh. per 1,000 sq. ft. 3 P and K Requirement Lime Recommendation Code No.---------------- 1 Level ------------------ N PK Code Rate --------------- 120 No.----------- 21 Magnesium Recommendation Code No.-------- 2 [31] Crop Code No. 61 TRUCK CROPS Phosphorus Very high Potassiu Very high 1200-0 High Medium Low Pounds N-P2 05 -K2 0 per acre 1200- 0 1200-120 1200-120 Very low 1200-180 High Medium Low Very low FINAL REMARK : (2) 120- 0-0 (2) 120-120-0 120-180-0 120-180-0 (2) 120- 60-60 120-120-60 120-180-90 120-180-90 120- 60-120 120- 60-180 120-120-120 120-120-180 120-180-120 120-180-180 120-180-120 120-180-180 120- 60-180 120-120-180 120-180-180 120-180-180 71. For cauliflower, broccoli, and root crops, apply 1 lb. of boron (B) per acre. P and K Requirement Lime Recommendation Code No.Recommendation Code No. Level ------------------ 3 N Rate--------_______. 120 Magnesium - -2 1 PK Code No. _18 Crop Code No. 62 TOMATOES Phosphorus Very high Very high High Medium Low Very low COMMENTS:, 120- 0-0 (2) 120- 0-0 (2) Potassium Low High Medium Pounds N--P 2 0 5-K20 per acre 120- 0- 0 120- 0-120 120- 0-120 (2) 120- 60-60 120- 60-120 120- 60-180 120-120-60 120-180-90 120-180-90 120-120-120 120-180-120 120-180-120 120-120-180 120-180-180 120-180-180 Very low 1200-180 120- 60-180 120-120-180 120-180-180 120-180-180 120-120-0 120-180-0 120-180-0 89. Apply 1,000 lb. of gypsum or basic slag per acre before planting. (Calcium rated low and no lime recommended.) 90. Apply 500 lb. of gypsum or basic slag per acre before planting. (Calcium rated medium and no lime recommended.) 120 3 N Rate ------P and K Requirement Level ------------2 PK Code No. 18 Lime Recommendation Code No.-------Magnesium Recommendation Code No.________________ 2 _-- [32] Crop Code No. 63 STRAWBERRIES. Phosphorus Very high High Medium Low Very low COMMENT: Very high 120- 0-0 120- 0-0 120-120-0 120-180-01 120-180-0 High Pounds 120- 0- 0 120- 60-60 120-120-60 1201-180-90 120-180-90 Potassium Low Medium N-P 2 0 5-K 2 per acre 0 120- 0-120 120- 0-120 120- 60-120 120- 60-180 120-120-120,120-120-180 120-180-120 120-180-180 120-180-120 120-180-180 Very low 120- 0-180 120- 60-180 120-120-180 120-180-180 120-180-180 87. Apply 1/3 of the fertilizer in September, 1/3about 90 days before ripening, And the remainder after harvesting. P and K Requirement Level 3 N Rate 120 Lime Recommendation Code No.-----------1 PK Code No. 18 Magnesium Recommendation Code No. 2 Crop Code No. 64 IRISH POTATOES Phosphorus Very high High Medium Low Very low FINAL REMARK: -----------------------------------Potassium Medium Low N-P2 05 -K20' per acre 120- 50-100 120- 50-150 120-100-150 120-100-200 120-150-150 120-120-180 120-180-120 120-200-200 120-180-120 120-200-200 Very high 120- 50-0 120-100-0 120-150-0 120-200-0 120-200-0 High Pounds 120- 50- 50 120-100-100 120-150-100 120-200-100 120-200-100 Very low 120- 50-150 120-100-200 120-120-180 120-200-200 120-200-200 88. Where Irish potatoes are grown in rotation with other crops, follow lime recommendation for potatoes. P and K Requirement Level ---------------- N Rate ---3 120 Lime Recommendation Code No.---------- -4 PK Code No.17 Magnesium Recommendation Code No. 3 ------------- Crop Code No. 65 WATERMELONS, CANTALOUPES, LIMA BEANS, SNAP BUNCH BEANS, SQUASH, OKRA, AND SWEETPOTATOES Phosphorus Very high Very high High Medium Low Very low P 80- 0-0 (2) 80- 0-0 (2) 80- 80-0 80-120-0 80-120-0 Potassium High Medium Low Pounds N-P 20 5-K20 per acre 80- 0- 0 80- 0-80 80- 0-120 (2) 80- 40-40 80- 40-80 80- 60-120 80- 80-40 80-120-60 80-120-60 80- 80-80 80-120-80 80-120-80 3 Very Low 800-120 80- 60-120 80- 80-120 80-120-120 80-120-120 80- 80-120 80-120-120 80-120-120 N Rate PK Code and K Requirement Level ------------------2 _________________80 Lime Recommendation Code No.---------------1 Magnesium Recommendation. CodeNo No.-------------19 [33]i Crop Code No. 66 SWEET CORN Phosphorus Very high High Medium Low Very low COMMENT: Very high 150- 0-0 150- 0-0 150- 60-0 150-100-0 150-120-0 High Pounds 150- 0- 0 150- 30-30 150- 60-40 150-100-50 150-120- 0 Potassium Low Medium N-P 2 0 5-K20 per acre 150- 0-60 150- 0- 90 150- 40-60 150- 45- 90 150- 60-60 150- 60- 90 150- 90-60 150- 90- 90 150-120-60 150-120-120 Very low 150- 0-120 150- 40-120 150- 60-120 150-120-120 150-140-140 91. Apply 3 lb. of zinc (Zn) per acre in corn fertilizer. 3 P and K Requirement Level _--Lime Recommendation Code No.---- Magnesium 150 - PK Code ---------------------- 2 -- N Rate No. 1 2 Recommendation Code No. ------------ Crop Code No. 67 PEPPER, PIMIENTO Phosphorus Very high High Medium Low Very high 100- 0-0 100- 60-0 100-120-0 100-180-0 High Pounds 100- 0-60 100- 60-60 100-120-60 100-180-60 Potassium Medium Low Very low 100- 0-180 100- 60-180 100-120-180 N-P 2 0 5-K20 per acre 100- 0-120 100- 0-180 100- 60-120 100- 60-180 100-120-120 100-120-180 100-180-120 100-180-180 Very low 100-180-0 100-180-60 100-180-120 100-180-180 N Rate ._ -____ PK Code No._ 100-180-180 100-180-180 P and K Requirement Level Lime Recommendation Code No._______ Magnesium Recommendation Code No._ [34] RECOMMENDATIONS FOR SHRUBS AND FLOWERS Crop Code No. 80 SHRUBS AND PERENNIAL Phosphorus Vr FLOWERS Low 0-120 (94) 120- 60-120 (96) 120-120-120 (99) 120-120-120 (99) 120-120-120 (99) 120Very iow 1200-120 (94) 120- 60-120 (96) 120-120-120 (99) 120-120-120 (99) 120-120-120 (99) Potassium high 120High 0- 0 (92) 120- 60- 60 (95) 120- 60- 60 (95) 120-120-120 (99) 120-120- 0 Medium 1200- 60 (93) 120- 60- 60 (95) 120-120-120 (99) 120-120-120 (99) 120-120-120 (99) Pounds N-P 2 0 5-K 2 U per acre Very high High Medium Low Very low FINAL REMARK: 120- 0-0 )2) 120- 0-0 )2) 120-: 120-0 (9)7) 120-:120-0 )7) 120-:120-0 )7) (97) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. P i and K co eR Requirement m n ain Level Co eN .---- --------------_-3_----------- N Rate ae-- d o------------------ 120KC 2 1 Magnesium Recommendation Code No.--- -2 Crop Code No. 81 AZALEAS, Phosphorus RHODODENDRON, AND MOUNTAIN LAUREL Potassium Medium Very high Very high High Medium Low Very low FINAL REMARK: High Pounds 120- 0- 0 (92) 120- 60- 60 (95) 120- 60- 60 (95) 120-120-120 (99) 120-120- 0 (97) Low Very low 1200-120 (94) 120- 60-120 (96) 120-120-120 (99) 120-120-120 (99) 120-120-120 (99) 120- 0-0 (92) 120- 0-0 (92) 120-120-0 (97) 120-120-0 (97) 120-120-0 (97) N-P 20 5-K 20 per acre 120- 0- 60 120- 0-120 (93) (94) 120- 60- 60 120- 60-120 (95) (96) 120-120-120 120-120-120 (99) (99) 120-120-120 120-120-120 (99) (99) 120-120-120 120-120-120 (99) (99) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. P and K Requirement Level-3 Lime Recommendation Code No. 4 Magnesium Recommendation Code No.------------- 2 N Rate PK Code 16 --------------120 No.------------- [35] Crop Code No. 82 ROSES, MUMS, AND ANNUAL FLOWERS Phosphorus Very high High Medium Low Very low FINAL REMARK: Very high 120- 0-0 (103) 120- 0-0 (103) 120-120-0 (108) 120-120-0 120-120-0 (108) High Pounds 120- 0- 0 (103) 120- 60- 60 (106) 120- 60- 60 (106) 120-120-120 120-120(108) 0 Potassium Medium Low N-P 20 5-K20 per acre 120- 0- 60 120- 0-120 (104) (105) 120- 60- 60 120- 60-120 (106) (107) 120-120-120 120-120-120 (110) (110) 120-120-120 120-120-120 120-120-120 120-120-120 (110) (110) Very low 120- 0-120 (105) 120- 60-120 (107) 120-120-120 (110) 120-120-120 120-120-120 (110) 26. 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. 3 P and K Requirement Lime Recommendation Code No.-------------- 1 Level ------------------ N PK Code Rate --------------- 120 No. ------------ 16 Magnesium Recommendation Code No.---------2 Crop Code No. 83 GREENHOUSE CROPS (ANNUALS) PhosphorusPoasu Very high Very high High Medium Low Very low COMMENTS : High 240- 0-120 (203) 240-120-120 (206) 240-120-120 (206) 240-240-120 (210) 240-240-120 (210) Medium 240- 0-120 (203) 240-120-120 (206) 240-240-240 (208) 240-240-240 (208) 240-240-240 (208) Pounds N-P2 0 5-K 2 0- per acre Low Very low 240- 0-240 (204) 240-120-240 (207) 240-240-240 (208) 240-240-240 (208) 240-240-240 (208) 1.0 ton per 240- 0-0 (202) 240-120-0 (205) 240-120-0 (205) 240-240-0 (209) 240-240-0 (209) 240- 0-240 (204) 240-120-240 (207) 240-240-240 (208) 240-240-240 (208) 240-240-240 (208) 201. To correct acidity, apply dolomitic limestone as recommended. acre is 5 lb. per 2 cu. yd. or per 100 sq. ft. P 211. The soluble salts reading is------------_------and K Requirement Level ---- 3 N Rate PK Code Lime Recommendation Code No.---------------- 1 No.------------22 -________________240 Magnesium Recommendation Code No.----------2 [86] RECOMMENDATIONS Crop Code No. 90 FOR FRUITS AND NUTS PEACHES Phosphorus Pot assilum Very high - 0-0 *- High Low Pounds N-P2 0 5-K 20per acre Medium 0- 0-30 - Very low - Very high High - 0-0 "- 0-0 0-60 0-60 (115) 0-0 *- 0-30 (116) 0-60 (116) 0- 0-60 Medium Low Very low FINAL REMARK : *-30-0 (117) *60-0 (120) *-60-0 (120) *030-0 (117) *-600 (120) *60-0 (120) (115) *-30-30 (118) *6030 (121) *-60-30 (121) (116) *-30-60 (119) *-60-60 (122) *90-90 (123) (116) *3060 (119) *9090 (123) *-9090 (123) lb. ammonium nitrate or equivalent) per tree per year of tree age up to a maximum of 1.0 lb. N (3 lb. ammonium nitrate or equivalent) per tree. P and K Requirement *114. For peaches apply P2 05 and K2 0 as recommended above plus 0.1 lb. N (0.3 Level ------------------ 2 N Rate ________________ * Lime Recommendation Code No.------_------- 1 PK Code No.----------- 20 Magnesium Recommendation Code No.---------3 Crop Code No. 91 MUSCADINE Phosphorus Very high Very high High - SCUPPERNONG Very low - Potassium High Medium Low Pounds N-P 20 5-K20 per acre - 0-0 0-0 0-0 0-0 0- 0-30 - 0-60 ~- (115) 0- (116) 0-60 0-30 Medium Low Very low FINAL REMARK: *-30-0 (117) *-60-0 (120) *-.60-.0 (120) *-30-0 (117) *60-0 (120) .- 00 6 (120) (115) *-30-30 (118) *60-30 (121) *60-30 (121) (116) *-30-60 (119) *-60-60 (122) 0-90-90 '*(116) 0-60 0-60 (116) *-30-60 (119) *-90-90 (123) (123) 0-90-90 (123) * 124. For muscadines or scuppernongs apply P 05 and K20 as recommended above 2 plus 0.05 lb. N (.15 lb. ammonium nitrate or equivalent) per vine per year of vine age up to a maximum of 1/2 lb. N (1.5 lb. ammonium nitrate or equivalent) per vine in early spring. P and K Requirement Lime Recommendation Code No. Level----_-------------- 2 1 N Rate-PK Code -- *----------- No.--- 20 Magnesium Recommendation Code No.[37] -3 Crop Code No. 92 APPLES Phosphorus Very high 0- 0-0 1- 0-0 -PEARS Potassiu High Medium Low Pounds N-P2 05 -K20 per acre 0- 0-0 0- 0-0 0- 0-30 0- 0-60 Very low 0- 0-60 Very high High (126) 0- 0-30 (127) 0- 0-60 *- (127) 0-60 Medium Low Very low FINAL REMARK: *-30-0 (128) *-600 (131) 0-600 (131) *-30-0 (128) -60-0 (131) *-60-0 (131) (126) *-30-30 (129) *-6030 (132) *-6030 (132) (127) *3060 (130) *6060 (133) *9090 (134) (127) *3060 (130) 9090 (134) (134) * 125. For apples or pears apply P20 5 and K2 0 as recommended above plus 0.1 lb. N (0.3 lb. ammonium nitrate or equivalent) per tree for each year of tree age up to a maximum of 1 lb. of N (3 lb. ammonium nitrate or equivalent) per tree on semidwarf root stock and 2 lb. of N for trees on seedling stock. Adjust the rate of N to give desirable fruit color and 12 to 18 inches of growth annually. If borated fertilizer is not used to supply boron (B), apply borax at the rate of 2.0 lb. (B) per acre or 5 tablespoons borax per tree. To correct zinc (Zn) deficiency in apples, apply 0.3 lb. zinc (1.0 lb. zinc sulfate) per tree. To prevent zinc deficiency, apply 0.15 lb. zinc (1/2 lb. zinc sulfate) per tree. root P and K Requirement Level ------------------ 2 Code No.---------3 N Rate_________*_______ PK Code Lime Recommendation Code No.-------------- 1 No.----------- 20 Magnesium Recommendation Crop Code No. 93 PLUMS Phosphorus Very high Very high High - otassium High Medium Low Pounds N-P2O5-K 2 O per acre - Very low - 0-0 0-0 0-0 0-0 *0- 0-30 0k- 0-60 0-60 0-60 ~- (126) 0-30 (127) 0- 0-60 *- (127) (127) /*-30-60 (130) *90-90 (134) *-90-90 (134) Medium Low Very low FINAL * 4-30-0 0-30-0 (128) *-60-0 (131) -60-0 (128) *60-0 (131) -60-0 (131) (131) (126) *-30-30 (129) *60-30 (132) *-60-30 (132) 1190-90 (134) N Rate---------*-----PK Code No.--_------- 20 (127) *-30-60 (130) *-60-60 (133) 135. REMARK : For plums apply P 20 5 and K20 as recommended above plus 0.1 lb. N (0.3 lb ammonium nitrate or equivalent) per tree per year of tree age up to a maximum of 1.0 lb. N (3 lb. ammonium nitrate or equivalent) per tree. If borated fertilizer is not used to supply boron, apply 1.0 lb. boron (B) per acre or 5 tablespoons borax per tree. P and K Requirement _---_------2 Lime Recommendation Code No.---------------1 Magnesium Recommendation Code No.---------3 Level ------ CI38] Crop Code No. 94 PECANS Phnsnhor. Potassium Very high High *- 0-0 *- 0-0 Medium *- 0-30 *- 0-30 Low *- 0-60 *- 0-60 Very low *- 0-60 *- 0-60 Pounds N-P 20 5-K 20 per acre Very high High 0-0 *- 0-0 #- Medium Low Very low FINAL REMARK: *-30-0 *-60-0 *-60-0 *-30-0 *-60-0 *-60-0 *-30-30 *-60-30 *-60-30 -30-60 *-60-60 *-90-90 *-30-60 *-90-90 *-90-90 *136. For pecan trees 20 years old or more, apply 8 to 10 lb. of N (30 lb. ammonium nitrate or equivalent) per tree or 100 lb. per acre broadcast in February. For younger trees, apply 0.5 lb. N (1.5 lb. ammonium nitrate or equivalent) per year of tree age. For trees showing zinc deficiency (Rosette) apply 0.25 lb. of zinc per year of tree age up to 3 lb. per tree. To prevent Rosette apply 0.75 lb. of zinc per tree or 3 lb. every 5 years. P and K requirements of pecans are low compared to most other crops. Full benefit from fertilization will not be obtained unless a good spray program for disease and insect control is followed. * P and K Requirement Level 2 N Rate.--20 1 PK Code No.----------Lime Recommendation Code No. Magnesium Recommendation Code No................. 3 Crop Code No. 99 This crop code number is used primarily for research samples. The computer prints pounds per acre of soil-test P, K, Ca, and Mg and soil pH on regular soil-test forms. This code can also be used on other samples when this information is desired. LIME RECOMMENDATION Code Lime if below Lime to CODES Crops 1" 2 3 4 5 5.8 6.0 6.0 5.0 5.5 6.5 6.5 7.0 5.5 6.5 All except those listed below Tomatoes, pepper, eggplant and white clover Alfalfa Irish potatoes, azaleas, tobacco Coastal bermuda, common bermuda, bahia, dallisgrass, lawns, fairways, athletic fields * Code 1 crops are moved to Code 5 when grown on fine textured soils of Soil Group 5. MAGNESIUM RECOMMENDATION CODES 1. If magnesium is low and lime is recommended, use dolomite. If magnesium is low and lime is not recommended, do not mention magnesium. (These crops have not been shown to respond to magnesium.) 2. If magnesium is low and lime is recommended, use dolomite. If magnesium is low and lime is not recommended, use 25 lb. soluble magnesium. (Cotton, vegetable crops, orchards, shrubs and flowers, and tobacco.) 3. If lime is recommended, always recommend dolomite. If lime is not recommended and Mg is low, use 25 lb. soluble magnesium. (These crops have a high magnesium requirement.) [39] POUNDS PER ACRE OF SOIL TEST P, K, Ca, AND Mg ON WHICH SOIL-TEST RATINGS ARE BASED P and K Requirement Level 1. (Corn and other grasses) VL 0-12* 0-12 0- 7 L 13-25 13-25 8-15 Phosphorus M 26-50 26-50 16-30 H 51-100 51-100 31- 60 VH 101+ 101+ 61+ VL 0-20 0-30 0-40 L 21-40 31-60 41-80 Potassium M 41- 80 61-120 81-160 H 81-160 121-240 161-320 VH 161+ 241+ 321+ 1 2,3,4 5 P and K Requirement Level 2. (Cotton and legumes) Soil group -- I A 1 2,3,4 5 VL 0-12 0-12 0- 7 L 13-25 13-25 8-15 Phosphorus M 26-50 26-50 16-30 H 51-100 51-100 31- 60 VH 101+ 101+ 61+ VL 0-30 0-45 0-60 L 31- 60 46- 90 61-120 Potassium M 61-120 91-180 121-240 H 121-240 181-360 241-480 VH 241+ 361+ 481+ P and K Requirement Level 3. (Gardens, lawns, shrubs, etc.) Soil group 1 2,3,4 5 VL 0-25 0-25 0-15 L 26-50 26-50 16-30 Phosphorus M H 51-100 51-100 31- 60 101-200 101-200 61-120 VH 201-400 201-400 121-240 EH 401+ 401+ 241+ VL 0-30 0-45 0-60 Potassium L M 31- 60 61-120 46- 90 91-180 61-120 121-240 Calcium (all soils) H 26+ 51 Peanuts Tomatoes L 0-175 0-300 M 176-300 301-500 H 301+ 501+ H 121-240 181-360 241-480 VH 241+ 361+ 481+ Magnesium (all crops) Soil Group 1 Other Soils L 0-25 0-50 * Numbers are pounds per acre of P, K, and Mg extracted in a 4 to 1 solution-soil ratio of .05 N HC1-.025 N H2SO 4 , shaken for 5 minutes. Ca is extracted by the same procedure with 1 N NH4 OAc at pH 7.0. PK CODES FOR THE VARIOUS CROP CLASSES Code No. Crops 1 06-White clover 07-White clover S. grass 08-White clover W. grass 2 04-Ann. grass pasture 05-W. grass legume 10--Cotton 12-Cotton (SM) 27-Temp. w. grass 66-Sweet corn 3 03-W. grass small grain 09-S. grass legume 19--Annual legume 20-Sou. peas 4 01-Summer grass 13-Corn 15-Corn (SM) 16-Silage 21-Sorghum sunflowers 5 17-Peanuts 23-Sericea kudzu 24-Soybeans Ratings VH-VH H M L VL H-VH H M L VL M-VH H M L VL L-VH H M L VL VL-VH H M L VL P20 5 0 0 0 0 0 0 40 40 50 0 80 80 80 60 80 120 120 120 120 160 180 180 160 160 180 K20 0 0 80 120 180 0 40 80 100 180 0 40 80 120 160 0 60 60 120 160 0 0 80 160 180 P2 0 5 0 0 0 0 0 0 30 40 45 40 60 60 60 60 60 100 100 90 90 120 120 120 120 120 140 K20 0 0 60 90 120 0 30 60 90 120 0 40 60 90 120 0 50 60 90 120 0 0 60 120 140 Pounds per acre P20 5 K20 0 0 0 0 50 0 100 0 0 100 0 0 30 30 30 60 40 80 100 0 0 50 30 60 50 50 40 80 100 50 0 80 40 80 40 80 80 80 100 100 0 100 0 100 50 100 100 100 120 120 P205 0 0 0 0 0 0 20 30 30 30 40 45 40 40 40 60 60 60 60 80 80 80 80 80 80 K20 0 0 40 80 80 0 20 45 60 60 0 30 40 60 80 0 30 40 60 80 0 0 40 80 80 P 205 0 0 0 0 0 0 0 0 0 0 40 40 40 40 50 80 80 80 80 100 120 120 120 100 120 K20 0 0 40 80 120 0 0 40 80 120 0 0 40 80 100 0 0 40 80 100 0 0 60 100 120 PK CODES FOR THE VARIOUS CROP CLASSES (CONTINUED) Code No. Crops 6 02-Coastal hay 22-Alfalfa 7 8 26-Tobacco Pounds per acre 9 25-S. Grain soybeans rotation KO 2 60 60 90 120 120 60 90 150 180 180 60 100 150 200 200 60 120 180 180 180 60 120 180 180 180 P 20 5 0 0 0 0 0 0 50 50 50 50 100 100 100 100 100 150 150 150 150 150 200 200 200 200 200 K20 0 0 60 100 150 0 50 75 100 150 0 50 100 150 150 0 50 100 150 150 0 0 100 200 200 10 14-Corn peanuts rotation P 205 0 0 0 0 0 0 20 30 40 40 60 60 60 60 60 120 120 120 120 120 120 120 120 120 120 K 20 0 0 60 120 120 0 20 60 80 80 0 30 60 120 120 0 60 80 120 120 0 60 80 120 120 Ratings VH-VH H M L VL H-VH H M L VL M-VH H M L VL L-VH HI M L VL VL-VH H M L VL P0 0 0 0 0 0 2 KO 2 0 50 100 200 300 0 50 100 200 300 0 50 100 200 300 0 50 100 200 300 0 50 100 200 300 PO 5 0 0 0 0 0 0 40 60 40 40 80 80 80 100 80 120 120 120 120 150 200 200 200 240 240 KO 20 0 0 150 240 300 0 80 120 240 300 0 80 160 200 300 0 60 120 240 300 0 100 200 240 240 P20 5 60 60 60 60 60 60 90 100 90 90 90 100 100 100 100 120 120 120 120 120 120 120 120 120 120 0 25 25 25 25 50 50 50 50 50 75 75 100 100 100 100 100 100 100 100 PK CODES FOR THE VARIOUS CROP CLASSES (CONTINUED) 14 44-Gulf greens 15 47-Hwy. turf, est. Code No. Crops 11 11-Cotton peanuts rotation 12 40-Bermuda lawn 41-Zoysia 13 42-Centipede 18-Small grain peanuts rotation St. Augustine 43-W. lawn 45-Golf fairways 46-Athletic fields 48-Hwy. maint. Pounds per acre n W u Ratings VH-VH H M L VL H-VH H M L VL M-VH H M L VL L-VH H M L VL VL-VH H M L VL TT P2o5 0 0 0 00 0 40 40 60 60 80 80 80 80 80 160 160 150 160 160 160 160 150 160 160 O/\ K2 0 0 0 80 160 160 0 40 80 120 120 0 40 80 120 160 0 80 100 160 160 0 80 100 160 160 AA P05 2 0 0 0 0 0 0 0 0 0 0 40 40 40 40 40 80 40 80 80 80 80 80 80 80 80 AA K20 0 0 40 80 80 0 40 40 80 80 40 40 40 80 80 40 40 80 80 80 80 80 80 80 1A P205 0 0 0 0 0 0 0 0 0 0 0 0 40 40 40 40 40 40 40 40 4040 40 40 40 A K2 0 0 0 40 P205 0 0 0 0 0 0 50 50 50 50 100 100 100 100 100 200 200 200 200 200 200 200 200 200 200 40 40 0 0 40 40 40 0 0 40 40 40 0 40 40 40 40 0 40 40 40 40 K20 0 0 100 200 200 0 50 100 200 200 0 100 100 200 200 0 100 100 200, 200 0 100 100 200 200 P205 0 0 0 0 0 0 40 40 40 40 80 80 80 80 80 160 160 160 160 160 160 160 160 160 160 K20 0 0 80 160 160 0 40 80 160 160 0 40 80 160160 0 40 80 160 160 0 40 80 160 160 PK CODES FOR THE VARIOUS CROP CLASSES (CONTINUED) Code No. Crops 16 80-Shrubs and per. flowers 81-Rhodedenrons mountain laurel azaleas 82-Roses, mums, ann. flowers P 20 5 17 64-Irish potatoes 18 60-Home garden 61-Truck crops 62-Tomatoes 63-Strawberries 68-Pepper pimento 19 65-Sw. pot. watermelons cantaloupes lima beans bunch, snap beans squash okra 20 90-Peaches 91-Muscadines scuppernongs 92-Apples pears 93-Plums 94-Pecans Ratings VH-VH H M L VL H-VH SH M L VL M-VH H M L VL L-VH H M L VL VL-VH H M L VL 0 0 0 0 0 0 60 60 60 60 120 60 120 120 120 120 120 120 120 120 120 120 120 120 120 K20 0 0 60 120 120 0 60 60 120 120 0 60 120 120 120 0 120 120 120 120 0 0 120 120 120 P20 50 50 50 50 50 100 100 100 100 100 150 150 150 120 120 200 200 180 200 200 200 200 180 200 200 K20 0 50 100 150 150 0 10,0 150 200 200 0 100 150 180 180 0 100 120 200 200 0 100 120 200 200 Pounds per acre K20 P 205 0 0 0 0 0 120 0 120 180 0 0 0 60 60 60 120 180 60 180 60 0 120 60 120 120 120 180 120 180 120 0 180 90 180 120 180 180 180 180 180 0 180 90 180 120 180 180 180 180 180 P2 05 0 0 0 0 0 0 40 40 60 60 80 80 80 80 80 120 120 120 120 120 120 120 120 120 120 K20 0 0 80 120 120 0 40 80 120 120 0 40 80 120 120 0 60 80 120 120 0 60 80 120 120 P20 5 0 0 0 0 0 0 0 0 0 0 30 30 30 80 30 60 60 60 60 90 60 60 60 90 90 K20 0 0 30 60 60 0 0 30 60 60 0 0 30 60 60 0 0 30 60 90 0 0 30 90 90 CONVERSION TABLE FOR CHANGING SOIL-TEST P AND K TO FERTILITY INDEX FOR THE DIFFERENT SOIL GROUPS' Fertility index Very low 0 10 20 30 40 50 Low 60 70 Medium 80 90 100 High 110-200 Very high 210-400 Extremely high Soil Group 1,2,3,4 5 Lb. per A. Soil-Test P 0 1-2 3-4 5-7 8-10 11-12 13-19 20-25 26-34 34-43 44-50 51-100 101-200 0 1 2 3 4-5 6-7 8-11 12-15 16-21 22-26 27-30 31-60 61-120 1 Soil Group 2,3,4 Lb. per A. Soil-Test K 0-30 31-34 35-38 39-42 43-46 47-50 51-70 71-90 91-120 121-150 151-180 181-360 861-720 5 0-20 21-22 23-24 25-26 27-28 29-30 31-45 46-60 61-80 81-100 101-120 121-240 241-480 0-40 41-46 47-52 53-58 59-64 65-70 71-95 96-120 121-166 167-212 213-240 241-480 481-960 410 up 1 201+ 121+ 481+ 721+ 961+ The fertility index (percent sufficiency) is based on P and K Requirement Level 2 (Cotton and legumes). [45] COMMENTS Comment number 1 2 3 4 5 6 USED ON SOIL TEST REPORTS 7 8 9 10 11 13 14 15 16 17 18 19 20 Field Crops, Forage Crops and Pastures On summer grass pastures apply 60 lb. of N and P and K as recommended before growth starts and repeat the N application when more growth is desired up to September 1 (01). Where no P or K are recommended, sample again in 2 years (01 through 25, 41, 42). Rates of P20 5 and K 2 0 recommended may be doubled and applied broadcast in alternate years (01 though 21). Phosphorus (P2 0 5 ) rate may be doubled and applied every other year (02). Apply 60 to 80 lb. of N and P and K as recommended by September 1. Repeat N application in February. For temporary summer grass or Johnsongrass, apply 100 lb. of N and P and K as recommended before spring growth begins. Apply 100 lb. of N each time hay is cut or forage is grazed down. For reseeding clover, or where clover seed are to be harvested, apply 1.0 to 1.5 lb. boron (B) per acre (06, 07, 08, 19). Where legume does not furnish sufficient N for desired growth of grass, apply 60 lb. of N each time forage is grazed down or cut for hay (05, 07, 09). On grass-legume mixtures, where legume does not furnish sufficient N for desired growth of grass, apply 60 lb. of N in early fall and repeat if needed in early spring (08, 09). For cotton, use the nitrogen (N) rate as a guide. On land where excessive growth has caused problems with late maturity, insects, or boll rot, reduce the N rate 20 to 30 lb. per acre. Where vegetative growth has been inadequate, increase the N rate by this amount. Apply 0.3 lb. of boron (B) per acre in the fertilizer or in the insecticide, spray or dust. For peanuts apply 0.3 to 0.5 lb. of boron (B) per acre in the fertilizer, gypsum, or disease control spray or dust (11, 14, 17, 18). Apply 250 lb. of gypsum at blooming time (11, 14, 17, 18). Apply 500 lb. of gypsum at blooming time (11, 14, 17, 18). For corn on sandy soils apply 3 lb. zinc (Zn) per acre in fertilizer after liming or where pH is above 6.0 (Comment to be used only on Class and 4 soils) (13 through 16). If silage is grown on this field for more than 1 year, increase the rate of K 20 to 100 lb. after the first year (16). If silage is grown on this field for more than one year, increase the rate of P 2 0 5 and K 20 to 50 lb. each after the first year (16). If silage is grown on this field more than one year, increase rate of P2 0 5 to 50 lb. and rate of K 2 0 to 100 lb. per acre after the first year (16). If silage is grown on this field for more than one year, increase the rate of P2 0 5 to 100 lb. after the first year (16). If silage is grown on this field for more than one year, increase the rate of P2 O5 to 100 lb. and K 2 0 to 50 lb. after the first year (16). I [46] COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number If silage is grown on this field more than one year, increase the rates 21 of P2 0 5 and K20 to 100 lb. per acre after the first year (16). 22 For coastal bermuda hay, apply 100 lb. of N and P and K as recommended before spring growth begins. Apply 100 lb. of N each time hay is cut (02). 23 For alfalfa apply 3 lb. of boron (B) per acre annually (22). 24 Fertilizer recommended should be sufficient for 2 years (23). 25 Fertilizer applied to small grain should be sufficient for soybeans (25). Lawns, Golf Courses, Athletic Fields and Roadsides 26 27 1.0 ton limestone per acre is approximately equivalent to 50 lb. per 1,000 sq. ft. (40 through 44, 60, 80 through 82). Per 1,000 sq. ft. apply 1 lb. N (8 lb. ammonium nitrate or equivalent) when spring growth begins and repeat in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals (40, 41). Per 1,000 sq. ft. apply 6 lb. 15-0-15 when spring growth begins and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals (40, 41). Per 1,000 sq. ft. apply 6 lb. 15-0-15 when spring growth begins and repeat in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals (40-41). Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) and 5 lb. superphosphate when spring growth begins and apply 1 lb. N in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals (40-41). Per 1,000 sq. ft. apply 12 lb. 8-8-8 when spring growth begins and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals (40-41). Per 1,000 sq. ft. apply 12 lb. 8-8-8 when spring growth begins and apply 6 lb. 15-0-15 in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals (40-41). Per 1,000 sq. ft. apply 10 lb. superphosphate and 1 lb. N (3 lb. ammonium nitrate or equivalent) when spring growth begins and apply 1 lb. N in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals (40-41). For small grains or ryegrass planted for grazing on fallowed fields in early September, apply 100 lb. of N at planting and repeat in early spring. Crops grown for grain only should receive 20 lb. of N in the fall and 60 lb. in the spring (25, 27). Per 1,000 sq. ft. apply 12 lb. 8-8-8 when spring growth begins and [47] 28 29 30 31 32 33 34 35 COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number repeat in mid-summer. If more growth or better color is desired, make additional applications of I lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals (40-41). Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) when spring growth begins and repeat in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals. Phosphorus is excessive and fertilizer containing this element should not be used. Excessive phosphorus may cause an iron deficiency. The symptoms normally occur as a general yellowing of new growth. To correct, spray with a soluble source of iron which can be found at garden supply stores. USE AS DIRECTED (41). Per 1,000 sq. ft. apply 6 lb. 15-0-15 when spring growth begins and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N at 2-month intervals. Phosphorus is excessive and fertilizer containing this element should not be used. Excessive phosphorus may cause an iron deficiency. The symptoms normally occur as a general yellowing of new growth. To correct, spray with a soluble source of iron which can be found at garden supply stores. USE AS DIRECTED (41). Per 1,000 sq. ft. apply 6 lb. 15-0-15 when spring growth begins and repeat in mid-summer. If more growth or better color is desired, make additional applications of 1 lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals. Phosphorus is excessive and fertilizer containing this element should not be used. Excessive phosphorus may cause an iron deficiency. The symptoms normally occur as a general yellowing of new growth. To correct, spray with a soluble source of iron which can be found at garden supply stores. USE AS DIRECTED (41). Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) when spring growth begins and repeat in mid-summer. Phosphorus is excessive and fertilizer containing this element should not be used. Excessive phosphorus may cause an iron deficiency. The symptoms normally occur as a general yellowing of new growth. To correct, spray with a soluble source of iron which can be found at garden supply stores. USE AS DIRECTED (42). Per 1,000 sq. ft. apply 6 lb. 15-0-15 when spring growth begins and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in mid-summer. Phosphorus is excessive and fertilizer containing this element should not be used. Excessive phosphorus may cause an iron deficiency. This normally occurs as a general yellowing of new growth. To correct, spray with a soluble source of iron which can be found at garden supply stores. USE AS DIRECTED (42). Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) when spring growth begins and repeat in mid-summer (42). [48] 36 37 38 39 40 41 COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number 42 Per 1,000 sq. ft. apply 6 lb. 15-0-15 when spring growth begins and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in mid-summer (42). 43 Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) and 5 lb. superphosphate when spring growth begins and apply 1 lb. N in mid-summer (42). 44 Per 1,000 sq. ft. apply 12 lb. 8-8-8 when spring growth begins and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in mid-summer (42). 45 Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in the fall and repeat in the spring. If more growth or better color is desired, add 1 lb. N at 2-month intervals (43). 46 Per 1,000 sq. ft. apply 6 lb. 15-0-15 in the fall and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in the spring. If more growth or better color is desired, add 1 lb. N at 2-month intervals (43). 47 Per 1,000 sq. ft. apply 6 lb. 15-0-15 in the fall and repeat in the spring. If more growth or better color is desired, add 1 lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals (43). 48 Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) and 5 lb. superphosphate in the fall and apply 1 lb. N in the spring. If more growth or better color is desired, add 1 lb. N at 2-month intervals (43). 49 Per 1,000 sq. ft. apply 12 lb. 8-8-8 in the fall and apply 1 lb. N (3 lb. ammonium nitrate or equivalent) in the spring. If more growth or better color is desired, add 1 lb. N at 2-month intervals (43). 50 Per 1,000 sq. ft. apply 12 lb. 8-8-8 in the fall and apply 6 lb. 15-0-15 in the spring. If more growth or better color is desired, add 1 lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals (43). 51 Per 1,000 sq. ft. apply 10 lb. superphosphate and 1 lb. N (3 lb. ammonium nitrate or equivalent) in the fall and apply 1 lb. N in the spring. If more growth or better color is desired, add 1 lb. N at 2-month intervals (43). 52 Per 1,000 sq. ft. apply 12 lb. 0-16-8 and 1 lb. N (3 lb. ammonium nitrate or equivalent) in the fall and apply 1 lb. N in the spring. If more growth or better color is desired, add 1 lb. N at 2-month intervals (43). 53 Per 1,000 sq. ft. apply 12 lb. 8-8-8 in the fall and repeat in the spring. If more growth or better color is desired, add 1 lb. N (3 lb. ammonium nitrate or equivalent) at 2-month intervals (43). 54 Per 1,000 sq. ft. apply 1 lb. N (3 lb. ammonium nitrate or equivalent) every 4 weeks, or as needed to maintain desired growth and color (44). 55 Per 1,000 sq. ft. apply 8 lb. of 15-0-15 in the spring and repeat in the fall. Apply 1 lb. N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). 56 Per 1,000 sq. ft. apply 6 lb. 15-0-15 in the spring and repeat every [49] COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number 2 months for a total of 4 applications. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color. (44). Per 1,000 sq. ft. apply 6 lb. of superphosphate. Apply 1/4 lb. of N (4 lb. ammonium nitrate or equivalent) at 6-week intervals for a total of 8 applications (44). Per 1,000 sq. ft. apply 14 lb. 8-8-8. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 14 lb. 8-8-8 in the spring and 6 lb. in the fall. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 4 lb. of 8-8-8 in the spring and 4 applications of 6 lb. 15-0-15 at 2-month intervals. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 6 lb. of superphosphate in the spring and repeat in the fall. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 14 lb. of 8-8-8 in the spring and repeat in the fall. Apply 1 lb. N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 14 lb. 8-8-8 in the spring and repeat in the fall. Apply 2 applications of 6 lb. 15-0-15 at 2-month intervals. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 12 lb. of superphosphate in the spring and repeat in the fall. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 12 lb. superphosphate in the spring to build up soil phosphorus. Apply 14 lb. of 8-8-8 in the spring and repeat in the fall. Apply 1 lb. N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color (44). Per 1,000 sq. ft. apply 14 lb. 8-8-8 in the spring and at 2-month intervals for 4 applications. Apply 1 lb. of N (3 lb. ammonium nitrate or equivalent) at 4-week intervals or as needed to maintain desired growth and color. On fairways, apply 60 lb. of N with the recommended rates of P 2 0 5 and K2 0 in the spring. Apply additional N as needed at the rate of 60 lb. per acre per application (45). For athletic fields, nitrogen should be divided into 4 applications at 2-month intervals beginning in March. Apply additional nitrogen [50] 57 58 59 60 61 62 63 64 65 66 67 68 COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number at the rate of 50 lb. of N (150 lb. ammonium nitrate or equivalent) per acre if needed to maintain desired growth and color. A football field plus 20 feet on all sides is about 2 acres. Before planting turf, mix recommended lime, phosphorus, potassium, and 80 lb. of N into the surface soil before planting. One month after planting, apply 40 lb. of N (47). After establishing turf as recommended above, apply 40 lb. each of N, P 20 5, K 2 0 at 6-month intervals (47). Gardens and Truck Crops 71 73 74 76 77 79 For cauliflower, broccoli and root crops, apply 1 lb. of boron (B) per acre (61). Per 100 ft. of row, apply 0.4 lb. N (1 pint ammonium nitrate or equivalent) at planting. Sidedress with 0.4 lb. N (60). Per 100 ft. of row, apply 11/2 quarts 15-0-15 at planting. Sidedress with 11/2 quarts 15-0-15 (60). Per 100 ft. of row, apply 21/2 quarts 8-8-8 at planting. Sidedress with 0.4 lb. N (1 pint ammonium nitrate or equivalent) (60). Per 100 ft. of row apply 21/2 quarts 8-8-8 at planting. Sidedress with 11/2 quarts 15-0-15 (60). Per 100 ft. of row apply 2 quarts of superphosphate and 0.4 lb. N (1 pint ammonium nitrate or equivalent) at planting. Sidedress with 0.4 lb. N (60). Per 100 ft. of row apply 3 quarts 8-8-8 at planting. Sidedress with 2 quarts 8-8-8 (60). Apply about /3 the fertilizer in September, about /3 90 days beof fore ripening and the remainder after harvesting (63). Where Irish potatoes are grown in rotation with other crops, follow lime recommendation for potatoes (64). Apply 1,000 lb. of gypsum per acre to tomatoes before planting (Calcium rated low and no lime recommended) (62). Apply 500 lb. of gypsum per acre to tomatoes before planting (Calcium rated medium and no lime recommended) (62). Apply 3 lb. of zinc (Zn) per acre in corn fertilizer (66). Shrubs and Flowers 92 93 94 95 96 Per 100 sq. ft. apply 1 cup ammonium nitrate or equivalent in early spring and repeat in early summer (80-81). Per 100 sq. ft. apply 1 pint 15-0-15 in early spring and then apply 1 cup ammonium nitrate or equivalent in early summer (80, 81). Per 100 sq. ft. apply 1 pint 15-0-15 in early spring and repeat in early summer (80, 81). Per 100 sq. ft apply 1 quart 8-8-8 in early spring and then apply 1 cup ammonium nitrate or equivalent in early summer (80, 81). Per 100 sq. ft. apply 1 quart 8-8-8 in early spring and then apply 1 pint 15-0-15 in early summer (80, 81). [51] 69 70 81 87 88 89 90 91 COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number 97 Per 100 sq. ft. apply 11/2 pints superphosphate and 1 cup ammonium nitrate or equivalent in early spring and then apply 1 cup ammonium nitrate in early summer (80, 81). 99 Per 100 sq. ft. apply 1 quart 8-8-8 in early spring and repeat in early summer (80, 81). 103 Per 100 sq. ft. apply :1/2 cup ammonium nitrate or equivalent when spring growth begins and repeat monthly untilAugust 1 (82). 104 Per 100 sq. ft. apply alternately 1 cup 15-0-15 and 1/2cup ammonium nitrate or equivalent monthly starting when spring growth begins. Make last application about August 1 (82). 105 Per 100 sq. ft. apply 1 cup 15-0-15 when spring growth begins and repeat monthly until August 1 (82). 106 Per 100 sq. ft. apply alternately 2 cups 8-8-8 and 1/ cup ammonium nitrate or equivalent at monthly intervals starting when spring growth begins. Make last application about August 1 (82). 107 Per 100 sq ft. apply alternately 2 cups 8-8-8 and 1 cup 15-0-15 at monthly intervals starting when spring growth begins. Make last application about August 1 (82). 108 Per 100 sq. ft. apply 21/ cups superphosphate. Apply 1/ cup ammonium nitrate or equivalent when spring growth begins and repeat ammonium nitrate application monthly until August 1 (82). Per 100 sq. ft. apply 11/2 cups 8-8-8 when spring growth begins and 110 repeat monthly until August 1 (82). Fruits and Nuts 114 Peaches-final remark. Apply P 2 0 5 and K 2 0 as recommended above plus 0.1 lb. N (0.3 lb. ammonium nitrate or equivalent) per tree per year of tree age up to a maximum of 1.0 lb. N (3 lb. ammonium nitrate or equivalent) per tree (90). Apply 1/ pint muriate of potash per tree or vine in early spring (90, 91). Apply 1 pint muriate of potash per tree or vine in early spring (90, 91). Apply 11/ pints superphosphate per tree or vine in early spring (90, 91). Apply 21/2 pints 0-14-14 per tree or vine in early spring (90, 91). Apply 21/ pints 0-10-20 per tree or vine in early spring (90, 91). Apply 21/2 pints superphosphate per tree or vine in early spring (90, 91). Apply 3 pints 0-16-8 per tree or vine in early spring (90, 91). Apply 31/2 pints 0-14-14 per tree or vine in early spring (90, 91). Apply 21/2 quarts 0-14-14 per tree or vine in early spring (90, 91). Muscadines - scuppernongs - final remark. Apply P2 0 5 and K 20 as recommended above plus 0.05 lb. N (.15 lb. ammonium nitrate or equivalent) per vine per year of vine age up to a maximum of 1/ lb. N (11/ lb. ammonium nitrate or equivalent) per vine in early spring (91). [52] 115 116 117 118 119 120 121 122 123 124 COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number 125 Apples-pears-final remark. Apply P2 0 5 and K2 0 as recommended above plus 0.1 lb. N (0.3 lb. ammonium nitrate or equivalent) per tree for each year of tree age up to a maximum of 1 lb. of N (3 lb. ammonium nitrate or equivalent) per tree on semidwarf root stock and 2 lb. of N for trees on seedling root stock. Adjust the rate of N to give desirable fruit color and 12 to 18 inches of growth annually. If borated fertilizer is not used to supply boron (B), apply borax at the rate of 2.0 lb. (B) per acre or 5 tablespoons borax per tree. To correct zinc (Zn) deficiency in apples, apply 0.3 lb. zinc (1.0 lb. zinc sulfate) per tree. To prevent zinc deficiency, apply 0.15 lb. zinc (1/2 lb. zinc sulfate) per tree (92). 126 Apply 1 pint muriate of potash per tree in early spring (92, 93). 127 Apply 1 quart muriate of potash per tree in early spring (92, 93). 128 Apply 11/2 quarts superphosphate per tree in early spring (92, 93). 129 Apply 2 quarts 0-14-14 per tree in early spring (92, 93). 130 Apply 3 quarts 0-10-20 per tree in early spring (92, 93). 131 Apply 3 quarts superphosphate per tree in early spring (92, 93). 132 Apply 4 quarts 0-16-8 per tree in early spring (92, 93). 133 Apply 4 quarts 0-14-14 per tree in early spring (92, 93). 134 Apply 5 quarts 0-14-14 per tree in early spring (92, 93). 135 Plums - final remark. Apply P2 0 5 and K 20 as recommended above plus 0.1 lb. N (0.3 lb. ammonium nitrate or equivalent) per tree per year of tree age up to a maximum of 1.0 lb. N ( 3 lb. ammonium nitrate or equivalent) per tree. If borated fertilizer is not used to supply boron, apply 1.0 lb. boron (B) per acre or 5 tablespoons borax per tree (93). 136 Pecans - final remark. For pecan trees 20 years old or more, apply 8 to 10 lb. of N (30 lb. ammonium nitrate or equivalent) per tree or 100 lb. per acre broadcast in February. For younger trees, apply 0.5 lb. of N (1.5 lb. ammonium nitrate or equivalent) per year of tree age. For trees showing zinc deficiency (Rosette), apply 0.25 lb. of zinc per year of tree age up to 3 lb. per tree. To prevent Rosette, apply 0.75 lb. of zinc per tree or 3 lb. every 5 years. P and K requirements of pecans are low compared to most other crops. Full benefit from fertilization will not be obtained unless a good spray program for disease and insect control is followed (94). 137 Fertilizer applied to cotton or small grain should be sufficient for peanuts next year (11, 18). 138 Fertilizer applied to corn should be sufficient for peanuts next year (14). 139 Phosphorus is excessive and fertilizer containing this element should not be used (40-94). Special Comments that may be added by the computer when needed. 140 Increase N rate to 140 pounds per acre for Burley or Darkfire tobacco. [53] COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number 141 For irrigated potatoes, increase above fertilizer recommendation by 1/4. 142 For plant 2, skip 1 cotton, fertilizer recommended will cover 1 acre. 143 For plant 2, skip 2 cotton, fertilizer recommended should be applied on 11/2 acres. 144 145 146 147 148 149 150 151 152 153 154 155 156 Where peanuts are to be grown in rotation with corn or cotton, it is recommended that the soil be sampled before the crop preceding peanuts. For Spanish peanuts, apply 15 to 25 pounds of N in the fertilizer at planting time. Type of pasture plants to be grown was unknown. If other than above, please notify the Soil Testing Laboratory and proper recommendations will be given. For dwarf shrubs and ground cover plants, decrease the rate of fertilizer to 1/ the above recommended rate. Do not apply fertilizer to mums after color begins to show. Crops to be grown were unknown. If other than above, please notify the Soil Testing Laboratory for proper recommendations. For a nematode analysis, contact your County Extension Office for supplies and instructions. Type of lawn grass that you are growing was unknown. If it is other than above, notify the Soil Testing Laboratory for proper recommendations. It was not known if grass species is for a lawn or pasture. Therefore, we have given you both recommendations for this grass and you should follow the appropriate one. If above lawn grasses are mixed, follow the recommendation for the grass which you prefer. For additional information, contact your local County Extension Office. The charge for analyzing soil samples is $2.00 per sample. We are enclosing your overpayment in cash with your soil test report. The sample identification listed on your information sheet was different from that listed on your boxes. The identification used on your soil test report is the same as you listed on your ............ -........... 201 202 203 204 205 Greenhouse Crops To correct acidity, apply dolomitic limestone as recommended. 1.0 ton per acre is 5 lb. per cu. yd. or per 100 sq. ft. Per 100 sq. ft. apply 1/2 cup ammonium nitrate or equivalent every 2 weeks in 25 gal. water. Per 100 sq. ft., apply alternately 1 cup 15-0-15 and '/2 cup ammonium nitrate or equivalent every 2 weeks in 25 gal. water. Per 100 sq. ft., apply 1 cup 15-0-15 every 2 weeks in 25 gal. water. Per 2 cu. yd. or 100 sq. ft., apply 2 lbs. superphosphate as a corrective treatment. Per 100 sq. ft., apply / cup ammonium nitrate or equivalent every 2 weeks in 25 gal. water. [54] COMMENTS USED ON SOIL TEST REPORTS (CONTINUED) Comment number 206 Per 2 cu. yd. or 100 sq. ft., apply 4 lb. 8-8-8 as a corrective treatment. Per 100 sq. ft. apply 1/4 cup ammonium nitrate or equivalent every 2 weeks in 25 gal. water. 207 Per 2 cu. yd. or 100 sq. ft., apply 4 lb. 8-8-8 as a corrective treatment. Per 100 sq. ft., apply 1/2 cup 15-0-15 evely 2 weeks in 25 gal. water. 208 Per 2 cu. yd. or 100 sq. ft. apply 4 lb. 8-8-8 as a corrective treatment. Per 100 sq. ft. apply 1 lb. 8-8-8 every 2 weeks in 25 gal. water. 209 Per 2 cu. yd. or 100 sq. it. apply 5 lb. superphosphate as a corrective treatment. Per 100 sq. ft. apply 1/2cup ammonium nitrate every 2 weeks in 25 gal. water. 210 Per 2 cu. yd. or 100 sq. ft., apply 4 lb. 8-8-8 plus 2'1/2 lb. superphosphate as a corrective treatment. Per 100 sq. ft., apply 1/4 cup ammonium nitrate or equivalent every 2 weeks in 25 gal. water. 211 The soluble salts reading is_.... ........................... . 212 If the soluble salts reading is above 175, leach with enough water to pass 2 to 4 quarts through each square foot of bench area or 1 pint through a 5 inch pot. Wait 1 hour and repeat. A third leaching may be necessary if readings are excessively high. [55] AGRICULTURAL EXPERIMENT STATION SYSTEM OF ALABAMA'S LAND-GRANT UNIVERSITY With an agricultural research unit in every major soil area, Auburn 0 University serves they needs of field crop, livestock, forestry, and hor- o 0 X2_ s ticultural producers in each iegio in Alahama. Evcrv citizen of the State has a stake in this research program. since any advantage from iew and more economical ways of producing and handling farm products directly benefits the consuming public. ,i 0>> ® Research Unit Identification 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. Tennessee Valley Substation, Belle Mina. Sand Mountain Substation, Crossville. North Alabama Horticulture Substation, Cullman Upper Coastal Plain Substation, Winfield. Forestry Unit, Fayette County. Thorsby Foundation Seed Stocks Farm, Thorsby Chilton Area Horticulture Substation, Clanton. Forestry Unit, Coosa County. Piedmont Substation, Camp Hill. Plant Breeding Unit, Tallossee Forestry Unit, Autauga County. Prattville Experiment Field, Prattville Black Belt Substation, Marion Junction Tuskegee Experiment Field, Tuskegee. Lower Coastal Plain Substation, Camden. Forestry Unit, Barbour County. Monroeville Experiment Field, Monroeville. Wiregrass Substation, Headland. Brewton Experiment Field, Brewton. Ornamental Horticulture Field Station Spring Hill. Gulf Coast Substation, Fairhope.