College of Agriculture: Recent submissions
Now showing items 1-20 of 2458
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Forest Vegetation of the Lower Alabama Piedmont
Forest community types were distinguished for the lower Alabama Piedmont using a combination of two agglomerative clustering algorithms with a similarity sorting technique. All stands classified in 8 of the resulting 10 ... -
Type III functional response in Daphnia
The functional response of Daphnia, a common pelagic herbivore in lakes, was assessed with a combination of secondary and meta-analyses of published data and new data from an experiment conducted using very low food levels. ... -
Report 20. Storage conditions and pre-germination methods for seed of selected tropical tree species
This document summarizes tree seed storage conditions and pre-germination methods of major species utilized in Agroforestry II, a USAID funded agroforestry project in Haiti. The study is not meant to be an exhaustive ... -
Report 10. Impact des haies vives sur la production agricole
Declining yields and land degradation are becoming more dramatic every year in spite of increasing foreign aid. Population growth far exceeds food production capacities. However, the effects of all agricultural development ... -
Report 25. Time rate of discounting and decisions of Haitian tree planters
During previous research on the economics of agroforestry in Haiti, it was noted that some farmers practicing agroforestry tended to hold onto trees for some years. They deferred harvesting them because some tree products, ... -
Report 17. Assessment of hedgerow performances in the Haitian context
Hillside farming in Haiti is practiced primarily by small farmers, and measures must be taken to help them at least maintain or possibly improve their production capacity. The introduction of techniques, such as hedgerow ... -
Adoption and management of alley cropping in Haiti
Haiti, a hilly densely populated country, has experienced soil erosion problems for decades. The major impact is a reduction of soil fertility leading to decreasing agricultural productivity. Agriculture, a major sector ... -
Adoption of rock walls as a soil conservation structure in Haiti
Land degradation has been identified as one of the most serious ecological, environmental, and economic problems facing the Haitian society today. One particular problem is soil erosion. Throughout the 19th century, ... -
Report 21. Factors affecting seedling mortality in Haitian agroforestry
This study examined several factors influencing the mortality of samples of seedlings used in the Agroforestry II Project. Measurements were made of the rootball condition, leaf drop, plant turgor and internal box temperatures ... -
Report 19. Biological, physiological and environmental factors affecting the health of trees important to Haiti
This report contains an extensive, although not necessarily complete, listing of biological, physiological and environmental factors which can affect the health of trees in genera important to the people of Haiti. These ... -
Report 16. Soil profile description for selected sites in Haiti
Reliable recommendations for the development of agroforestry systems require accurate descriptions of the environment. Information on the properties of soils in selected sites is needed to expand agroforestry in regions ... -
Report 15. An explorative approach for assessing soil movement on hillsides. Application for hedgerow performance
This report describes a methodology for studying soil movement on hillsides in Haiti. Hedgerows are one of the methods used in Haiti to prevent land degradation, and the method described here can be used to assess its ... -
Report 13. Technical constraints in Haitian agroforestry: research on tool use and need in two regions
To study tool use and need as a factor in agroforestry production in Haiti, research was undertaken in two widely-separated areas of the country, Des Forges (near Bombardopolis in Northwest Haiti) and Vialet (near Petit ... -
Report 11. Outline of techniques for use in studying agroforestry hedgerows and alley cropping systems in Haiti
Research methods for obtaining tree, crop, and soil data from Haitian hedgerow agroforestry systems are presented. Most of the procedures were developed during on-farm survey research conducted by Haiti Agroforestry Research ... -
Report 06. The charcoal market in Haiti : Northwest to Port-au-Prince
The segment of the charcoal market from the Northwest to Port-au-Prince and vicinity is an important link to different components of Haiti's economy. Changes inthe charcoal market may affect the economy's environmental ... -
Report 04. Seedling growth and development in different container types and potting mixes
This investigation tested the various containers and potting mixes used in the AOP. Effects were measured on nursery development of five non-nitrogen-fixing species (chene, kapab, cassia, neem, and ced). Four container ... -
Report 02. An interim report on influences of inoculation with nitrogen-fixing symbionts on reforestation efforts in Haiti
Many of the tree species produced in the AOP are able to fix nitrogen when their roots are colonized with the appropriate symbiotic microorganisms. In order to ensure colonization, tree seeds are inoculated at planting ... -
Report 01. Tree planting in Haiti: a socio-economic appraisal
The purpose of this rapid-reconnaissance study was to augment previous work on tree planting in Haiti by taking advantage of a longer history of woodlot operations and to include socio-economic data on hedgerows, border ... -
Report 23. L'impact de la plantation d'arbres en Haiti : 1982-1995
Ce document traite de l'impact des activités de plantation d'arbres entreprises par le Projet d'Animation Agroforestière (Agroforestry Outreach Project - AOP) et Agroforestière II (Agroforestry II - ARII). Ces projets ... -
Report 23. Impact of tree planting in Haiti : 1982-1995
This document reports the impact of tree planting activities implemented under the Agroforestry Outreach Project (AOP) and Agroforestry II (AFII). These projects were funded by the U.S. Agency for International Development ...