Through sampling soils of different years and depth in the reclaimed areas of Fushun coal mine, we analyzed the space-time change of soil nutrients and organic carbon.
以素有煤都之称抚顺矿区复垦土壤为例，对不同年限不同深度的土壤进行分析，揭示了抚顺煤矿区土壤养分的时空演变规律。
A field fertilizer experiment was made to explore the effect of different fertilizer treatments on soil nutrients and enzyme activity in different layers of river ancient channel.
通过田间肥料试验，探讨不同试验处理对河流故道区不同土层土壤养分及其酶活性的影响。
In this study, the effects of different amounts of residue incorporation on the contents of soil available nutrients and corn yields were examined under no-till practices.
研究了不同秸秆还田量对免耕黑土速效养分含量和玉米产量的影响。
In this study, the effects of different amounts of residue incorporation on the contents of soil available nutrients and corn yields were examined under no-till practices.
研究了不同秸秆还田量对免耕黑土速效养分含量和玉米产量的影响。
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