Titlebook: Advances in Soil Science; Volume 5 B. A. Stewart Conference proceedings 1986 Springer-Verlag New York Inc. 1986 Phosphor.growth.nitrogen.po

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書目名稱Advances in Soil Science讀者反饋學(xué)科排名

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Physical Properties and Processes of Puddled Rice Soils,ific volume of soil.” From the farmer’s point of view, however, puddling is simply the mixing of saturated soil with flood water to make it soft for transplanting and impervious to water (De Datta, 1981). Puddling, although a capital -and energy-intensive process, is practiced to achieve certain obj

Polydipsia

Conference proceedings 1986 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 principles, howeve

mitral-valve

chalice

Springer Proceedings in Physicservation has received more research attention in the arid and semiarid regions of the United States than in humid and subhumid regions. The arid and semiarid regions generally lie west of the 100th meridian, where annual precipitation is usually less than 500 mm, except for a narrow region of high r

煞費(fèi)苦心

J. E. Wampler,D. E. Stewart,S. L. Gallionific volume of soil.” From the farmer’s point of view, however, puddling is simply the mixing of saturated soil with flood water to make it soft for transplanting and impervious to water (De Datta, 1981). Puddling, although a capital -and energy-intensive process, is practiced to achieve certain obj

resuscitation

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迅速成長(zhǎng)

Monte Carlo Studies of Many-Electron SystemsChina has 25 million hectares of paddy soils, accounting for 25% of the total cultivated land in the country. Paddy (.) output amounts to 44% of the total grain output. These soils are characterized by a long history, varying types, and great productive potential.