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Agriculture in dry lands : principles and practice /
Throughout history, man has, by over-use, consistently reduced the productive capacity of dry lands. This degradation of one-third of the land area of the globe is, unfortunately, increasing. In recent years, world interest has turned to the problems of pollution of the environment and the impending...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Amsterdam ; New York :
Elsevier,
1992.
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| Colección: | Developments in agricultural and managed-forest ecology ;
26. |
| Temas: | |
| Acceso en línea: | Texto completo Texto completo |
Tabla de Contenidos:
- Front Cover; Agriculture in Dry Lands: Principles and Practice; Copyright Page; Foreword; Table of Contents; Part I: Environment and natural resources; Chapter 1. Dry climates and their world distribution; Classification of dry areas; The dry regions of the world; Causes of aridity; Summary; References; Chapter 2. Climatic factors and their effect on crop production; Introduction; Precipitation; Solar radiation; Winds; Carbon dioxide; Microclimate; References; Chapter 3. Soils of the dry zones; Soil-forming processes in drylands; Systems of soil classification; Major soils of the dry regions
- Agricultural use of major soil typesFormative elements of names used in the Soil Taxonomy; References; Chapter 4. Water resources, conservation and development; World water needs on the increase; Water conservation practices; Principal water resources; Small-scale water storage methods; Underground water reservoirs; Unconventional water resources; Economic aspects of water use; Water legislation; References; Part II: Crops under Moisture Stress; Chapter 5. Crop-water relations; Properties of water and its role in plants; Water potential; Water in the soil
- Water in the soil-plant-atmosphere continuumPhysiological effects of water stress; Water use efficiency; References; Chapter 6. Plant adaptations to moisture stress; Definitions and concepts; Categories of drought resistance; Drought escape; Avoiding stress; Dehydration tolerance (low lethal water status); Significance of survival for crop plants; Complex drought resistance mechanisms; References; Chapter 7. Crop introduction and breeding for drought-prone areas; Crop introduction; Breeding crops for drought-prone areas; Major approaches to breeding for drought resistance
- Incorporating physiological and morphological traits for high yieldsBreeding for heat tolerance and cold resistance; References; Part III: Land use and farming systems; Chapter 8. Agricultural systems in dry regions and their evolution; The beginnings of agriculture in dry zones; General patterns of land use in the dry regions; Desert pastoral agriculture; Potentials for improving range and livestock productivity; High-technology schemes for desert areas; Rainfed arable cropping in semi-arid areas; Irrigation agriculture; Recapitulation; References
- Chapter 9. Sustainable agriculture in dry regionsThe deterioration of natural resources; Deterioration and loss of water resources; Sustainable agricultural systems; References; Part IV: Soil and crop management; Chapter 10. Soil fertility; The concept of soil fertility; Physical factors affecting soil fertility; Chemical soil fertility; Biotic aspects of soil fertility; Soil micro-organisms in relation to plant nutrition; Dinitrogen fixation; Mycorrhizae; Soil pathogens; References; Chapter 11. Mineral plant nutrition and fertilizer use; Plant nutrients; Determining fertilizer requirements