The Relationship between Fertilizer Input Level and Nutrient Use Efficiency
The Relationship between Fertilizer Input Level and Nutrient Use Efficiency
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发表时间：
2000
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通讯作者：
Ma Wen-qi
中科院分区：
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作者：
Ma Wen-qi
通过对山东省及全国农作物施肥现状的研究，分析了肥料投入水平与养分利用效率的关系。结果表明，在提高肥料投入水平的同时，发展作物综合管理技术，也能获得较高的养分利用效率。在作物生产中，农民为了获得高效益，往往过量施肥，但养分利用率很低。因此，过度施肥造成的环境污染已成为我国农业生产中的一个严重问题。
The relationship between fertilizer input level and nutrient use efficiency was analyzed based on the study of the present situation of crop fertilization in Shandong province and China. The results showed that high nutrient use efficiency could also be obtained at high fertilizer input level when the comprehensive crop management techniques have been developed. In crop production,farmers often applied an excessive amount of fertilizer to get high benefit but the nutrient use efficiency was very low. As the consequence, the environmental contamination resulted from over-fertilization in crop production has become a serious problem in China.