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Titlebook: Advances in Soil Science; Volume 4 B. A. Stewart Conference proceedings 1986 Springer-Verlag New York Inc. 1986 agriculture.growth.irrigati

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發(fā)表于 2025-3-21 19:17:15 | 只看該作者 |倒序瀏覽 |閱讀模式
期刊全稱Advances in Soil Science
期刊簡稱Volume 4
影響因子2023B. A. Stewart
視頻videohttp://file.papertrans.cn/150/149779/149779.mp4
學科分類Advances in Soil Science
圖書封面Titlebook: Advances in Soil Science; Volume 4 B. A. Stewart Conference proceedings 1986 Springer-Verlag New York Inc. 1986 agriculture.growth.irrigati
影響因子The world needs for food and fiber continue to increase. Population growth in the developing countries peaked at 2. 4 percent a year in 1965, and has fallen to about 2. 1 percent. However, in many developing countries almost half the people are under 15 years of age, poised to enter their productive and reproductive years. The challenges to produce enough food for this growing population will remain great. Even more challenging is growing the food in the areas of greatest need. Presently the world has great surpluses of food and fiber in some areas while there are devastating deficiencies in other areas. Economic conditions and the lack of suitable infrastructure for distribution all too often limit the alleviation of hunger even when there are adequate supplies, sometimes even within the country itself. World hunger can only be solved in the long run by increasing crop production in the areas where the population is growing most rapidly. This will require increased efforts of both the developed and developing countries. Much of the technology that is so successful for crop production in the developed countries cannot be utilized directly in the developing countries. Many of the pr
Pindex Conference proceedings 1986
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Characterization and Modeling of Chemical Transfer to Runoff, 92-500), which specify that the Administrator of the U.S. Environmental Protection Agency shall, in cooperation with State and other Federal agencies, provide guidelines for identifying and evaluating the nature and extent of nonpoint sources of pollution.
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Springer Proceedings in Physics.., 1976), have resulted in extensive research on how N.O emissions are affected by fertilizer N usage for meeting food, feed, and fiber requirements of the world (Delwich, 1981; Payne, 1981b; Keeney, 1982; Firestone, 1982; Freney and Simpson, 1983).
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Monte Carlo Simulations of Glycoproteinsbeen significant, but it has also had serious consequences in many places of the world. By now this effect has become a worldwide problem and many national and international organizations are confronted with the consequences.
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Nitrous Oxide Emission from Soils,.., 1976), have resulted in extensive research on how N.O emissions are affected by fertilizer N usage for meeting food, feed, and fiber requirements of the world (Delwich, 1981; Payne, 1981b; Keeney, 1982; Firestone, 1982; Freney and Simpson, 1983).
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J. R. Banavar,J. Koplik,J. F. Willemsenmemts appear generally to be of soil physical properties. In fact, physical properties of soil have been noted in numerous cultural contexts, and it would be difficult to identify at just what point in historical time observations of such properties were sufficiently analytical, or measured with suf
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