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Tropical Soils
Agricultural ecology, or agroecology, deals in general with the structure and function of agroecosystems at different levels of resolution. In this text/reference, the authors describe in terms of agroecology the tropical environments of sub-Saharan Africa, Southeast Asia, and Latin and Central America, focusing on production and management systems unique to each region.
Tropical Soils
1. Introduction. 2. Mineralogy. 3. Soil Chemistry. 4. Soil Physics. 5. Soil Biology and Microbiology. 6. Soil Fertility. 7. Soil Formation and Classification. 8. Major Soils of the Tropics: A Descriptive Classification Based on Clay Mineralogy. 9. Soil Management: An Overview. 10. Properties and Management of Kaolinitic Soils. 11. Properties and Management of Oxidic Soils. 12. Properties and Management of Smectitic Soils. 13. Properties and Management of Allophanic Soils. 14. Soils and Sustainable Agriculture.
Lessons learned from Long-term Soil Fertility Management Experiments in Africa
This book elucidates the importance of long-term experiments in revealing evidence of soil fertility decline in Africa. An evaluation of experiences from on-going long-term experiments is given in broad detail. The first chapter explains the paradigm shift in soil fertility management then provides justification for long-term experiments before illuminating experiences from long-term experiments in East, West and Southern Africa. The second, sixth, eighth and ninth chapters give an in-depth account of crop management practices and soil fertility interventions in long-term trials within specific agro-ecological zones in West Africa. The rest of the chapters (chapter three, four, five and seven) address crop management, tillage practices and, organic and inorganic fertilizer applications in the context of long-term experiments in specific agro-ecological zones in East Africa.
Integrated Nutrient Management for Sustained Crop Production in Sub-Saharan Africa
'Slash and burn agriculture'remains the major food production system in sub-Saharan Africa. However, in a major part of the region, where fallow periods have been shortened below a critical level, the system can no longer sustain crop yield due to decline in soil fertility. In order to allow continuos crop production, principles and practices that mimic natural fallow and enhance soil organic matter build-up need to be integrated into new cropping systems that replace shifting cultivation or 'slash and burn agriculture'. These include (a) returning of organic materials to the soil, (b) ensuring minimum disturbance of soil surface, and (c) use of multipurpose trees and perennials. At the time...
Bibliographic Index
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Encyclopedia of Environment and Society
"As befits the topic, this beautifully packaged, wonderfully illustrated, interdisciplinary resource has more than 1200 entries written by specialists. A helpful reader′s guide groups topics like agriculture, conservation and ecology, movements and regulations, politics, pollution, and society. A resource guide, chronology, glossary, and list of the UN′s economic indicators complete the set." —Library Journal "...this important work gives a well-focused snapshot of environmentalism in the early 21st Century, and it will remain valuable into the future both for its content and as a yardstick to measure progress toward sustainability and conservation. Summing Up: Recommended. Undergradua...
Agronomy Abstracts
Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).
