应用指数和法对潮土农田土壤肥力变化的评价研究

Abstract

Abstract: IFI was introduced and used to analyze the temporal changes in soil fertility in Daxing County,and the factors affecting these changes as well.Results show that soil fertility has been raised as a whole in the past twenty years,and especially was in the 1990’s.Thanks to the adjustment of cropping structure and return of straws,the soil IFI has been increasing steadily and so has the integrated soil fertility in this county.

Key words: Beijing Plain, change, integrated evaluation, soil fertility

CLC Number:

S158

WANG Jun-Yan, ZHANG Feng-Rong, WANG Ru, JIA Xiao-Hong, ZHANG Cai-Yue. Application of Integrated Fertility Index Method in Evaluating Changes in Soil Fertility[J]. Journal of Ecology and Rural Environment, 2001, 17(3): 13-16,20.

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Application of Integrated Fertility Index Method in Evaluating Changes in Soil Fertility

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