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胡敏酸 [hú mǐn suān]
[土壤] humic acid
- 钙镁磷肥、胡敏酸互作可增加土壤残渣态铅的含量。
Mutual effects of calcium magnesium phosphate and humic acid enhance residual lead contents in soil. - 长期施用化肥可增加土壤胡敏素和胡敏酸的含量，HA／FA比值亦得到提高。
Long term application of chemical fertilizer could increase the contents of humic acid, humin and the ratio of HA/FA. - 在黑土中，游离态胡敏酸的型变主要体现在粉粒复合体中，结合态胡敏酸的型变主要体现在细砂复合体中。
In black soil, the type change of free humic acid mainly occurred in silt size complex, and that of combined form humic acid mainly occurred in fine sand size complex.
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