The effects and balance properties of long term nitrogen and phosphorous application in loessial hilly regions are explored in this paper based on field experiments and lab analysis from 1983 to 1992.
以1983 ~ 1992年的田间试验结果和室内分析资料为依据，探讨了黄土丘陵区长期施用氮磷肥效应及平衡特征。
The effects and balance properties of long term nitrogen and phosphorous application in loessial hilly regions are explored in this paper based on field experiments and lab analysis from 1983 to 1992.
以1983 ~ 1992年的田间试验结果和室内分析资料为依据，探讨了黄土丘陵区长期施用氮磷肥效应及平衡特征。
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