化肥氮残留很少，大部分进入土壤有机无机复合体中，而部分土壤氮被活化。
There was very little fertilizer N residue left, most of which entered the organo-mineral complex, while a part of the soil N was activated.
研究了不同耕作方式下黑土有机无机复合体组成及有机碳在各级复合体中的分布特征。
The paper studies organic mineral complex component and distribution character of organic carbon of black soil under various cultivation pattern.
研究了不同耕作方式下黑土有机无机复合体组成及有机碳在各级复合体中的分布特征。
The variation of organic-mineral complex content and the distribution characteristics of organic carbon fractions in black soil plough layer under different tillage periods;
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