Tillage For Soil And Water Conservation In The Semi Arid Tropics

Chapter 3 gives a review of the various tillage systems as they may be applied for soil and water conservation, based the soil characteristics and on different mechanization levels.

The problems of agriculture in the semi-arid regions; Assessing the possibilities for improving agriculture; Soil conservation; Water conservation; Water harvesting and use; Applications of water conservation.

The objectives of this Bulletin are to collate up-to-date information on soil tillage requirements for soils in the tropics; to assess the impacts of different ways of tillage on soil, environment and crop productivity; and to outline criteria for developing environment-friendly and economically viable tillage techniques for sustainable use of soil and water resources

Watershed management. Human resource development and traditional technologies of conservation. Peoples's participation in conservation programme. Resource management and tillage. Rehabilitation of degraded lands. Agroforestry and biodiversity in relation to conservation. Economic evaluation and politics.

In this invaluable book, leading agronomic researchers provide in-depth reviews of present conservation tillage practices in a wide variety of temperate agroecosystems. Each chapter characterizes how conservation tillage has been developed and adapted or modified to fit specific environments, with the chapters divided into the following climate regions: Cool Humid, Cool Humid to Warm Humid, Warm Humid, and Sub-Humid to Semi-Arid Continental. Each chapter also discusses important topics such as weed problems, crop rotation, fertilizer requirements, soil properties and processes, soil erosion, soil chemistry, soil physics, and environmental issues. A perfect working reference, this resource provides a synthesis of existing research and practices and shows how soil, climatic, and biological constraints can be overcome or circumvented.

This volume comprises invited reviews and research papers presented at a workshop entitled Conservation Tillage and Ley Farming Systems for the Semi-Arid Tropics, held in Katherine, Northern Territories, Australia, from 18 to 20 July 1995. The overview paper gives a scientist's view of dryland farming systems in the semi-arid tropics since 1980. The scientific papers address the major themes of the workshop: evaluation of tropical pastures; agronomy and sustainability of ley farming methods; animal production in the semi-arid tropics; weed control and herbicides; nutrient requirements and nitrogen inputs of legume leys; interaction of soil properties and tillage practices; and economic constraints to farming systems in the semi-arid tropics.

Advances in Soil and Water Conservation provides an in-depth, scholarly treatment of the most important developments and influences shaping soil and water conservation in the last 50 years. The book addresses the technological developments of erosion processes, methods for their control, policy and social forces shaping the research agenda, and future directions. Topics covered include: key governmental agencies and programs research on processes of soil and water degradation control practices and soil quality enhancement conservation tillage the connection between soil and water conservation and sustainable agriculture effects of technology and social influences on soil and water conservation in this country The historical foundation, the focus on key developments, the depth of treatment and thorough documentation, and the orientation to the future make Advances in Soil and Water Conservation a superlative resource for all persons in the field.