持续减量施氮对冬小麦土壤硝态氮含量和氮肥利用效率的影响
王成雨，石玉华，井跃博
Effects of Decreasing Nitrogen Inputs on Nitrate Nitrogen in Soil and Nitrogen Fertilizer Use Efficiency
WANG Cheng yu,SHI Yu hua,JING Yue bo
中国农业气象
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2013, (06): 642
-647
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DOI: 10.3969/j.issn.1000-6362.2013.06.004