Changes In Paddy Soil Fertility In Tropical Asia Under Green Revolution
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| Author | : Junta Yanai |
| Publisher | : Springer Nature |
| Total Pages | : 250 |
| Release | : 2022-06-20 |
| Genre | : Nature |
| ISBN | : 9811654255 |
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 | : Peter B.R. Hazell |
| Publisher | : Intl Food Policy Res Inst |
| Total Pages | : 40 |
| Release | : |
| Genre | : Social Science |
| ISBN | : |
| Author | : Achim Dobermann |
| Publisher | : Int. Rice Res. Inst. |
| Total Pages | : 203 |
| Release | : 2000 |
| Genre | : Nutrition |
| ISBN | : 9810427425 |
Rice ecosystems; Nutrient management; Mineral deficiencies; Mineral toxicities; Tools and information.
| Author | : Muhammad Aqeel Ashraf |
| Publisher | : CRC Press |
| Total Pages | : 204 |
| Release | : 2017-09-22 |
| Genre | : Science |
| ISBN | : 1351998579 |
There are approximately 500 different soil varieties in Malaysia, most is residual soil and coastal alluvial soil. This book presents a comprehensive overview of various aspects of soils in Malaysia. It covers topics including climate; flora and fauna; geology and hydrology; land use changes for agriculture; soil fertility; human-induced soil degradation; and soil contamination sources. It features information on the role of biological, chemical, mechanical, and physical factors in relation to soil properties. The book highlights land use impact, soil problems arising from contamination and its control methods, the management of problem soils, limiting materials as well as future soil issues. The presentation of different soils in Malaysia is organized through chapters based on two major soil groups (a) the sedentary soils formed in the interior on a wide range of rock types, and (b) the soils of the coastal alluvial plains. The book features information on how these various soil types affect the economy of the country and highlights the soil issues and challenges within the context of sustainable agriculture. Useful to graduate students of soil science, professionals, and agriculturalists, it provides extensive knowledge of agriculture soils in Malaysia in a concise and user-friendly manner.
| Author | : Institute of Soil Science, Academia Sinica |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 876 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3642681417 |
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 | : Robert Flint Chandler |
| Publisher | : Int. Rice Res. Inst. |
| Total Pages | : 278 |
| Release | : 1979 |
| Genre | : Political Science |
| ISBN | : 0891583629 |
The importance of rive as a world crops, and its principal characteristics. The modern rice plant and the new technology: Greater potentials for rice production in the tropics. Problems of postharvest technology. Rice marketing. Some successful rice production programs. Promising rice research. Elements of a successful accelerated rice production program. A national rice program: putting the ingredients together.
| Author | : Prabhu L. Pingali |
| Publisher | : Int. Rice Res. Inst. |
| Total Pages | : 350 |
| Release | : 1997 |
| Genre | : Business & Economics |
| ISBN | : 0851991629 |
Introduction: the state of rice in post-green-revolution Asia; Rice productivity growth: the case against complacency; Sustaining farm profits through technical change; Intensification-induced degradation of the paddy resource base; Erosion, pollution and poison: externalities and rice; Asian rice market: demand and supply prospects; GATT and rice: impact on the rice market and implications for research priorities; Agricultural commercialization and farmer product choices: the case of diversification out of rice; Strategic look at factor markets and the organization of agricultural production beyond 2025; Post-green-revolution seed technology for intensive rice systems; Fertilizers and pesticides: higher levels versus improved efficiencies; Dealing with labor scarcity: mechanical technologies.
| Author | : Nteranya Sanginga |
| Publisher | : CIAT |
| Total Pages | : 270 |
| Release | : 2009 |
| Genre | : Soil fertility |
| ISBN | : 9290592613 |
Forward. A call for integrated soil fertility management in Africa. Introduction. ISFM and the African farmer. Part I. The principles of ISFM: ISFM as a strategic goal, Fertilizer management within ISFM, Agro-minerals in ISFM, Organic resource management, ISFM, soil biota and soil health. Part II. ISFM practices: ISFM products and fields practices, ISFM practice in drylands, ISFM practice in savannas and woodlands, ISFM practice in the humid forest zone, Conservation Agriculture. Part III. The process of implementing ISFM: soil fertility diagnosis, soil fertility management advice, Dissemination of ISFM technologies, Designing an ISFM adoption project, ISFM at farm and landscape scales. Part IV. The social dimensions of ISFM: The role of ISFM in gender empowerment, ISFM and household nutrition, Capacity building in ISFM, ISFM in the policy arena, Marketing support for ISFM, Advancing ISFM in Africa. Appendices: Mineral nutrient contents of some common organic resources.
| Author | : Shouichi Yoshida |
| Publisher | : Int. Rice Res. Inst. |
| Total Pages | : 278 |
| Release | : 1981 |
| Genre | : Rice |
| ISBN | : 9711040522 |
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 | : Pedro A. Sanchez |
| Publisher | : Cambridge University Press |
| Total Pages | : 685 |
| Release | : 2019-01-10 |
| Genre | : Business & Economics |
| ISBN | : 1107176050 |
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
