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Author: Kazutake Kyūma
Publisher: ISBS
ISBN: 9781920901004
Category : Technology & Engineering
Languages : en
Pages : 302
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Book Description
This book is an important reference for those concerned with the continuing sustainability of wet rice agriculture, which remains the staple diet for most people throughout Asia. Kazutake Kyuma draws on his extensive experience regarding rice agriculture to explain the interactions between the various human, environmental, biological and chemical factors needed to protect the long-term productivity of rice paddy soils.
Author: Kazutake Kyūma
Publisher: ISBS
ISBN: 9781920901004
Category : Technology & Engineering
Languages : en
Pages : 302
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Book Description
This book is an important reference for those concerned with the continuing sustainability of wet rice agriculture, which remains the staple diet for most people throughout Asia. Kazutake Kyuma draws on his extensive experience regarding rice agriculture to explain the interactions between the various human, environmental, biological and chemical factors needed to protect the long-term productivity of rice paddy soils.
Author: Institute of Soil Science, Academia Sinica
Publisher: Springer Science & Business Media
ISBN: 3642681417
Category : Technology & Engineering
Languages : en
Pages : 876
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Book Description
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.
Author: Kazutake Kyuma
Publisher:
ISBN: 9784876984565
Category : Rice
Languages : en
Pages : 280
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Book Description
Author: Institute of Soil Science, Academia Sinica
Publisher: Springer
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 890
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Book Description
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.
Author: International Rice Research Institute
Publisher: Int. Rice Res. Inst.
ISBN: 9711041464
Category : Technology & Engineering
Languages : en
Pages : 438
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Book Description
Author:
Publisher:
ISBN:
Category : Rice
Languages : en
Pages : 116
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Book Description
Author: Junta Yanai
Publisher: Springer Nature
ISBN: 9811654255
Category : Nature
Languages : en
Pages : 250
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Book Description
This book investigates the effect of the Green Revolution (GR) on long-term changes in the fertility status of paddy soils in tropical Asia. While information on long-term changes in soil fertility status are rather limited due to difficulties in obtaining past data or samples for comparison, this investigation on temporal changes in soil fertility is possible by comparing fertility status in the 2010s, which the authors examined recently, with those from the 1960s, when GR was initiated, which was reported by Kawaguchi & Kyuma (1977). More than 220 paddy soils collected from Thailand, the Philippines, Malaysia, Bangladesh, and Indonesia were analyzed for their physicochemical properties as well as total and available fractions of plant macro- and micro- essential elements, and their temporal changes were examined in addition to their spatial variation in each country. The most significant change was a drastic increase of available phosphorus in soils, possibly due to fertilization after the GR. Changes in organic matter, pH, and other nutrients were relatively small. A considerable decrease in the content of some micronutrients was also observed. Long-term studies on soil fertility status in the past and present will be useful to establish soil/fertilizer management for sustainable rice production in the future. This book is an essential reading for soil scientists, agricultural scientists, environmental scientists, as well as policymakers and nongovernmental officers such as FAO.
Author:
Publisher: Int. Rice Res. Inst.
ISBN: 9711041049
Category : Agricultural wastes
Languages : en
Pages : 642
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Book Description
Author: Shouichi Yoshida
Publisher: Int. Rice Res. Inst.
ISBN: 9711040522
Category : Rice
Languages : en
Pages : 278
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Book Description
Growth and development of the rice plant. Climatic environments and its influence. Mineral nutrition of rice. Nutritional disorders. Photosynthesis and respiration. Rice plant characters in relation to yielding ability. Physiological analysis of rice yield.
Author: Ryusuke Hatano
Publisher: Springer Nature
ISBN: 9811582297
Category : Nature
Languages : en
Pages : 372
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Book Description
This book provides an overview of the distribution, properties, and function of soils in Japan. First, it offers general descriptions of the country’s climate, geology, geomorphology, and land use, the history of the Japanese soil classification system and characteristics and genesis of major soil types follow. For each region – a geographic/administrative region of the country – there is a chapter with details of current land use as well as properties and management challenges of major soils. Maps of soil distribution, pedon descriptions, profile images, and tables of properties are included throughout the text and appendices.
