Titlebook: Advances in Soil Science; Volume 18 B. A. Stewart Book 1992 Springer-Verlag New York, Inc. 1992 Phosphor.Soil fertility.behavior.soil scien

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judiciousness

Soil and Fertilizer Phosphorus and Crop Responses in the Dryland Mediterranean Zone,trous famine in the past two decades, the North Africa region is just as much threatened. Indeed, the problem is common in West Asian countries as well. It is ironic that water, a scarce resource, which dictates the course of man’s fortunes in dryland areas, can also cause a depletion of the soil re

迷住

,Distribution and Management of Drylands in the People’s Republic of China,population of the country. As the lands in most of these areas cannot be irrigated, rainfed agriculture remains the main system of farming. The development of agriculture in these vast areas is very important for the national economy.

侵略主义

Book 1992ed to be international in scope and cover all subjects relating to soil science. This volume certainly fulfills that objective. The first chapter is concerned with denitrification. The significance of denitrification in nitrogen use efficiency in agricultural, grassland, and forest ecosystems, and i

尊重

走调

deforestation

Ingest

天赋

O. Dillmann,M. Müller,W. Janke,K. Binderarid and semiarid areas cover 52.2% of its total (arid area 30.8% and semiarid area 21.4%), based on either precipitation of 400mm as the rainfall line or 1.5 aridity (defined as evaporation/precipitation). Although the arid and semiarid areas occupy a wide range of the total lands, the arable porti

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