1. Soil constraints on sustainable plant production in the tropics.
Trop. Agric. Res. Series No. 24; Trop. Agric. Res. Center (TARC), Tsukuba, Ibaraki, 305 Japan; ISSN 0388-9386, 1991, 216 pp.
Generally it is recognized that the tropical and sub-tropical countries and regions are faced with various kinds of soil constraints on sustainable plant production in cultivated lands, pastures and agroforestry schemes, which are presumably caused by fertility, acidity and salinity, erosion, micronutrient deficiency or excess, physical, chemical and biological limitations.
On behalf of the Symposium Organizing Committee of the Tropical Agriculture Research Center (TARC), the "International Symposium on Soil Constraints on Sustainable Plant Production in the Tropics" under the co-sponsorship of the TARC, Ministry of Agriculture, Forestry and Fisheries, Japan, was held.
The TARC was established in 1970 with the objective of contributing to the development of agricultural technology in the tropical areas in undertaking research programs.
The TARC activities cover a fairly wide range of research fields such as crop production, soil and water management, plant protection, pasture and animal husbandry, agriculture and food engineering, forestry and agroforestry.
In the symposium discussed here, the causes of the constraints are evaluated based on scientific data. The establishment of relevant measures for their alleviation with emphasis placed on low-input and sustainable plant production, in taking account of the preservation of the co-systems and environment in the tropics and sub-tropics are discussed.
This book is organized in country reports, technical reports and closes with a general discussion.
The book provides an overview of soil-based constraints which are limiting the sustained productivity of agriculture. It covers the research activities on characterization, genesis and amelioration of soil-related physical, chemical, and biological constraints. Some of the constraints are natural whereas others have arisen due to human interventions. Waterlogging and salinization in irrigation commands of arid and semi-arid regions, overmining of nutrients, and excessive exploitation of underground fresh waters have decreased the productivity of crops in several regions of the tropics. Alternative methods of soil management for improvement of degraded land qualities, and maintenance of environment and productivity of the soil resources are discussed.
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Europe, review, soil pollution, agricultural practices, plant nutrients, fertilizer, pesticides, animal excreta, water athmosphere
PAIN, B. et al.
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