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 % ；
This is because that organic matter enriched not only phosphorous in the high yield soil, but also increased soil phosphorous availability through decreasing absorption and fixation.
有机质不仅直接丰富了高产农田的磷库，而且通过提高磷酸化酶的活性，降低土壤磷的吸附、固定，促进解吸，增加了土壤磷的有效性。
The soil potassium fixation was increased after dry and humid alternation. Soil with higher potassium content had a higher fixation ability.
当土壤经过干湿以后，土壤会发生明显的固定钾作用，土壤含钾量越高，固定钾能力越强。
It was shown that if the proportion of water soluble phosphate was controlled properly, the fixation of phosphate in soil would be decreased, and the effect of fertilization would be improved.
说明控制化肥中适当的水溶磷比例，可以减少土壤对磷的固定，提高施肥效果。
So, the phosphorus in tea soil is situated in the condition of dynamic changes which include the form of fixation and release.
所以茶园土壤中的磷始终处于有固定又有释放，有释放又有固定的动态变化中。
The formation of foot nodule and activity of nitrogen fixation is related with soil conditions and host-plant characters.
根瘤的形成和固氮活性与土壤条件和寄主特性密切相关。
The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification.
土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification.
土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
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