Download or read book Priorities for Alleviating Soil related Constraints to Food Production in the Tropics written by and published by Int. Rice Res. Inst.. This book was released on 1980 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Priorities for Alleviating Soil related Constraints to Food Production in the Tropics written by International Rice Research Institute and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Priorities for alleviating soil related constraints to food production in the tropics written by International Rice Research Institute and published by . This book was released on 1980 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Low Fertility Acid Soils of the American Humid Tropics written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Joint Workshop on Management of Low Fertility Acid Soils of the American Humid Tropics written by J. F. Wienk and published by IICA. This book was released on 1982 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Rain Forest Ecosystems written by H. Lieth and published by Elsevier. This book was released on 2012-12-02 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: After publication of the first volume of the Tropical Rain Forest, the International Journal of Mycology and Lichenology commented ``This is a welcome addition to the literature on the ecology of tropical rain forests. The book provides a wealth of data and stimulating discussions and is of great interest to ecologists interested in tropical areas.'' Whereas the first volume dealt with system-ecological aspects such as community organization and processes, the present volume concentrates on biogeographical aspects such as species composition, diversity, and geographical variation.Recent ecological research in the tropical rain forest has greatly extended our understanding of biogeographical patterns of variation in the various groups of organisms, and has revealed many of the ecological and evolutionary forces that led to the present patterns of variation. Many important systems of co-evolution between the tropical rain forest ecosystems have also come to light, and the loss of species and related damage is better understood in quantitative terms.This volume presents a comprehensive review of these and other features of the rain forest ecosystem structure, and the ecological processes operating that system. General chapters on abiotic and biotic factors are followed by specific chapters on all major groups of organisms. Prospects for the future are discussed and research needs clearly stated. Also the human exploitation of the system, its effects and its limits are discussed. The book is extensively illustrated by photographs, graphs, and tables, and comprehensive bibliographies follow each chapter. Author, systematic and subject indices complete the book.It is a must for all ecologists, agriculturists, foresters, agronomists, hydrologists, soil scientists, entomologists, human ecologists, nature conservationists, and planners dealing with tropical areas. Biologists and environmentalists will also find the volume of great interest.
Download or read book World Soybean Research Conference III written by Richard Shibles and published by CRC Press. This book was released on 2022-02-26 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume consists of full length manuscripts of 159 of the 165 invited papers presented at World Soybean Research Conference III that was held in the Scheman Continuing Education Building at Iowa State University August 12-17, 1984. The authors, widely recognized as world authorities in their fields, represent all aspects of soybean research activity: breeding and genetics, crop and soil management, economics, entomology, food science, international programs, nematology, pathology, physiology, plant nutrition, rhizobiology, utilization, and weed science. This proceedings, which contains more than 1200 pages of information including many tables and figures, represents the most extensive compilation of soybean research results since the previous proceedings were published in 1980. It should be of value to research scientists, students and administrators alike.
Download or read book Proceedings of Symposium on Paddy Soils written by Institute of Soil Science, Academia Sinica and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt: China contributes a large part to rice production, one of the most important crops in the world. It is estimated that in China rice constitutes about half of the total food production, covering an area of about 30 % of \08 hectares of cultivated land of the whole country. Owing to the peculiar water regime, paddy soils possess quite different properties physically, chemically and biologically as compared with those of upland soils. Such properties have a conspicuous effect on fertility and management practice of paddy field. For the purpose of summing up the past work and opening up new prospects, a "Symposium on Paddy Soils" was organized under the auspices of Academia Sinica, held on October 19-24, 1980 in Nanjing, which was followed by a seven-day paddy soil excursion in the lower Changjiang Delta. In addition to 120 Chinese soil scientists, 56 guests coming from America, Asia, Europe and Oceania attended the symposium on invitation. A total of 110 papers were presented either orally or by poster. All these are collected and published in the present proceedings which we hope may be helpful to the scientific exchanges between soil scientists of China and other countries.
Download or read book The Rice Economy of Asia written by Randolph Barker and published by Int. Rice Res. Inst.. This book was released on 1985 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to present a comprehensive picture of the role of rice in the food and agricultural sectors of Asian nations.
Download or read book Plant Soil Interactions at Low pH written by Robert J. Wright and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1057 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil acidity is a major limitation to crop production in many parts of the world. Plant growth inhibition results from a combination of factors, including aluminum, manganese, and hydrogen ion toxicities and deficiencies of essential elements, particularly calcium, magnesium, phosphorus, and molybdenum. Agricultural management practices and acid precipitation have increased acid inputs into the ecosystem and heightened concern about soil acidity problems. While application of lime has proved to be effective in ameliorating surface soil acidity in many areas, significant soil acidity problems still exist. Scientists from Alberta, Canada, recognized the need to provide a forum for researchers from different disciplines to exchange information and ideas on solving problems of plant growth in acid soils. As a result of their efforts, the First International Symposium on Plant-Soil Interactions at Low pH was held at Grande Prairie, Alberta, Canada, in July 1987. In many acid soil areas, liming materials are not readily available, the cost may be prohibitive, or subsoil acidity cannot be corrected by surface application of lime. New management approaches involving both the plant and the soil are needed in these situations. Progress has been made in the selection and breeding of acid-tolerant plants. However, continued progress will be limited by our lack of understanding of the physiological and biochemical basis of differential acidity tolerance among plants.
Download or read book Agriculture in Dry Lands written by I. Arnon and published by Elsevier. This book was released on 2012-12-02 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 food shortage as world population grows explosively. Thus the attention of international and other agricultural bodies has turned to the need for preserving and developing more effectively the agricultural potential of these areas. This book provides a comprehensive review of present knowledge of the agriculture of dry lands, with special emphasis on measures for conserving their natural resources. Management practices are described which aim at optimizing productivity of rainfed and irrigated agriculture without adverse effects on sustainability. Land use in the dry regions, and its evolution throughout history is described and analysed, and the lessons to be learnt from destructive technologies are stressed. In particular, current proposals for an alternative agriculture are discussed and their justification is questioned. This is a generalist work, which specialists can also find interesting, not only in their own discipline but as a concise way of acquainting themselves with the state-of-the-art in associated fields. Increasing specialisation with each discipline using its own vocabulary leads inevitably to communication problems, and the need for multi-disciplinary teams makes inter-discipline communication indispensible.
Download or read book Rice Research Strategies for the Future written by and published by Int. Rice Res. Inst.. This book was released on 1982 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upland Rice written by Phool Chand Gupta and published by Int. Rice Res. Inst.. This book was released on 1986 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Upland rice distribution; Climate; Landscape and soils; Cropping systems; Varietal improvement; Soil management; Land preparation and crop establishment; Farm equipment; Weed management; Disease management; Insect pest management; Economics of upland rice production.
Download or read book Food Climate Interactions written by W. Bach and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of an International Workshop held in Berlin (West), December 9-12, 1980
Download or read book Symposium on Potential Productivity of Field Crops Under Different Environments written by W. H. Smith and published by Int. Rice Res. Inst.. This book was released on 1983 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological basis, physical environment, and crop productivity; Growth and yield of field crops; Crop productivity under different environments; Increasing productivity through cropping systems.
Download or read book Wetland Soils written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1985 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Workshop produced recommendations for future research and actions to make the goal of greater crop production from wetland soils a reality.
Download or read book Principles and Practices of Rice Production written by Surajit K. De Datta and published by Int. Rice Res. Inst.. This book was released on 1981 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
