长期施用有机肥能提高胡敏酸的含量，施用无机化肥可提高富里酸降低胡敏酸的含量。
Application organic fertilizer for long time can improve the content of humus, and inorganic fertilizer can enhance the content of Fulvic acid, decrease the content of humic acid.
长期施用有机肥能提高胡敏酸的含量，施用无机化肥可提高富里酸降低胡敏酸的含量。
Application organic fertilizer for long time can improve the content of humus, and inorganic fertilizer can enhance the content of Fulvic acid, decrease the content of humic acid.
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