soil-fixation efficiency 灰色系统理论
principle of soil-fixation 固土机理
the function of soil fixation 固持土壤
soil chemical fixation [土壤] 土壤化学固定
fixation of soil potassium 土壤钾素固定
phosphorus-fixation of soil 土壤固磷
fixation-releaseof soil magnesium 土壤镁素的固定和释放
k -fixation percentage of soil 土壤钾素固定率
The effect of humic acids on fixation and release of potassium in soil was accomplished by dissolving K-bearing minerals or blocking interlayers and adsorbing k.
腐殖酸对土壤钾素释放和固定的影响是通过对含钾矿物的溶解和层间堵塞以及对钾素的吸附作用实现的。
In the incubation process, the advantageous moisture content and the temperature condition promoted soil microorganism's activity, and strengthened inorganic phosphorus fixation by microorganisms.
培养过程中，水分和温度的有利条件促进了土壤微生物的活动，加强了微生物对无机磷的固定。
The results indicated that humus application inhibited soil Hg to shift to the plants, Hg fixation rate by the humus being over 90%.
结果表明：腐殖酸的施用可抑制土壤汞向植株迁移，对土壤汞的最大固定率超过90 % ；
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