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Закрити книгу / close this bookAbstracts on Sustainable Agriculture (GTZ; 1992; 423 pages)
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts On Traditional Land-Use Systems
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on farming systems research and development
Закрити папку / close this folderAbstracts on integrated systems
Перегляд документу / View the documentAcknowledgements
Перегляд документу / View the document1. Intensive sustainable livestock production: an alternative to tropical deforestation.
Перегляд документу / View the document2. Utilization of the african giant land snail in the humid area of nigeria.
Перегляд документу / View the document3. Important issues of small-holder livestock sector worldwide.
Перегляд документу / View the document4. Small ruminant production in developing countries.
Перегляд документу / View the document5. Microlivestock little-known small animals with a promising economic future.
Перегляд документу / View the document6. Assisting African livestock keepers.
Перегляд документу / View the document7. Deer farming.
Перегляд документу / View the document8. Economic constraints on sheep and goat production in developing countries.
Перегляд документу / View the document9. Sheep. Pigs.
Перегляд документу / View the document10. Strategies to increase sheep production in East Africa.
Перегляд документу / View the document11. Alternatives to imported compound feeds for growing pigs in solomon islands.
Перегляд документу / View the document12. Economic analysis of on-farm dairy animal research and its relevance to development.
Перегляд документу / View the document13. Grazing management: science into practice.
Перегляд документу / View the document14. Fish-farming in sub-Saharan Africa: case studies in the francophone countries - proposals for future action.
Перегляд документу / View the document15. Research and education for the development of integrated crop-livestock-fish farming systems in the tropics.
Перегляд документу / View the document16. Goats/fish integrated farming in the philippines.
Перегляд документу / View the document17. The sustainability of aquaculture as a farm enterprise in Rwanda.
Перегляд документу / View the document18. Double-cropping malaysian prawns, macrobrachium rosenbergii, and red swamp crawfish, procambarus clarkii.
Перегляд документу / View the document19. Rice/fish farming in Malaysia: a resource optimization
Перегляд документу / View the document20. Biotechnology in fishfarms: integrated farming or transgenic fish?
Перегляд документу / View the document21. Agricultural engineering in the development: tillage for crop production in areas of low rainfall.
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on cropping system
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Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on seed production
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Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on water management
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on soil fertility
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on erosion and desertification control
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on potential crops for marginal lands
 

21. Agricultural engineering in the development: tillage for crop production in areas of low rainfall.

FAO Agricultural Services Bulletin 83, FAO, Rome, Italy; ISBN 92-5-102542-8; 1990, 119 p. + annex

The objective of this publication is to provide perspectives and guidelines in the formulation of tillage strategies for the low rainfall areas, where dry-farming is practiced.

A better understanding is needed of the effects of tillage on the soil physical, chemical, and biological environments and how these environments are altered by various tillage practices.

Conservation tillage systems have been developed in a number of countries where dryland farming is practiced, but the scope of development considerably lags behind that for more humid regions.

There is little published material available concerning the efficiency of traditional dry farming systems that have been developed in Africa and Asia.

The primary objectives of tillage in any cropping system are to control weeds, enhance soil water storage and retention, reduce erosion, and to prepare a desirable seedbed.

The success of dry-farming depends heavily on the ability of the farmer to conserve water, and also to establish a suitable environment for seed germination, root growth, and control of soil erosion.

Dry-farming is practiced in the low rainfall or semiarid regions, where average annual precipitation is generally less than 500 mm.

Soils are often shallow, sandy, low in organic matter, and highly vulnerable to erosion when the surface is unprotected. During the wet season high intensity rains may result in severe runoff and erosion, and this is often followed by dry periods and severe wind erosion.

Tillage systems are generally referred to as reduced, minimum, or low tillage systems and zero till.

Conservation tillage is a term that is widely used to denote tillage systems that emphasize water conservation and erosion control.

The chapters carefully analyze:

 

- tillage effects on soil physical properties,
- organic matter dynamics,
- erosion,
- plant response,
- alternative tillage,
- planting equipment.

Conclusions and recommendations are drawn specifically to:

 

- tillage practice,
- water infiltration and conservation,
- erosion control,
- soil fertility,
- crop response,
- tillage implements,
- planting equipment.

An integrated approach is required to meet the tillage objectives for optimum seed preparation, weed control, erosion control, water conservation, and preservation of organic matter.

This is a reference book to assist scientists and extension workers in explaining alternative tillage practices.

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