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Proceedings Of Symposium On Paddy Soils

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Proceedings Of Symposium On Paddy Soils

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Author : Institute of Soil Science, Academia Sinica
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Proceedings Of Symposium On Paddy Soils written by Institute of Soil Science, Academia Sinica and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.

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.

Proceedings Of Symposium On Paddy Soils

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Author :
language : en
Publisher:
Release Date : 1980

Proceedings Of Symposium On Paddy Soils written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Soils, Irrigated categories.

Nitrogen Economy Of Flooded Rice Soils

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Author : S.K. de Datta
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Nitrogen Economy Of Flooded Rice Soils written by S.K. de Datta and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Nature categories.

The steadily increasing cost of nitrogen fertilizer has resulted in more emphasis on basic and applied studies to improve nitrogen use efficiency in lowland rice. The efficiency of fertilizer nitrogen in farmers' fields is shockingly low ~ a luxury resource-scarce farmers in tropical Asia can ill afford. We believe it is critical to quantify the basic transformation processes and develop management practices for higher N use efficiency for two reasons. They are: 1. Nitrogen fertilizer together with water management is a key factor for achieving the yield potentials of modern rices. 2. Fertilizer nitrogen prices are high and most Asian rice farmers are poor. The International Rice Research Institute (IRRI), Philippines; Internation al Fertilizer Development Center (IFDC), USA; Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia; U.S. Universities (Louisiana, Cornell, California, Arkansas and others); and Dr Justus Leibig University in West Germany are actively engaged in individual or collaborative research that addresses basic transformation processes on N gains and losses and management practices to maximize N use efficiency in rice. It is appropriate to update and summarize, in a double issue of Fertilizer Research, the 10 papers presented at the special symposium organized by the American Society of Agronomy (ASA) at the 75th Annual Meeting in Washington, D.C. in 1983. S.K. De Datta, Head of Agronomy Department, IRRI, was chairman of the International Agronomy Division of ASA (A-6) in 1982 and 1983.

Phosphorus Requirements For Sustainable Agriculture In Asia And Oceania

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Author : International Council of Scientific Unions. Scientific Committee on Problems of the Environment
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1990

Phosphorus Requirements For Sustainable Agriculture In Asia And Oceania written by International Council of Scientific Unions. Scientific Committee on Problems of the Environment and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Science categories.

This symposium organised by the International Rice Institute concentrate on the P requirement to optimize food and fiber production in the main rice-growing areas of the world using Asia and Oceanic data in a regional case study. Research gaps and needs are discussed

Proceedings Of The Symposium On Climate Rice

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Author : International Rice Research Institute
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1976

Proceedings Of The Symposium On Climate Rice written by International Rice Research Institute and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Climatic changes categories.

Rice Genetics

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Author : International Rice Research Institute
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1985

Rice Genetics written by International Rice Research Institute and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Technology & Engineering categories.

Regional Perspective. Rice production in Africa: an overview. Rice in eastern and southern Africa: the role of international testing . Varietal improvement research in rice for Africa. Potential rice varieties for East Africa. High yielding varieties technology project for rice in tropical Africa. Insect pests and diseases of rice in Africa. National Rice Research And Production. Rice production in Kenya. Key research areas on irrigated rice in Kenya. Rice in Tanzania. The status of rice production, consumpuon, and research in Zimbabwe. , Rice research in Zimbabwe. The Zina year rice project in Madagascar. Rice in Malawi. Country report for Zambia with emphasis on activities and constraints to rice production. A review of rice research in Zambia past, present, and future prased. Recommendations. Monitoring tour in Zambia and Tanzania.