Determination on humic acid for compound fertilizer by potassium bichromate titrimetric method, it is convenient to application and popularity, test results are satisfaction.
采用重铬酸钾容量法测定复混肥料中腐植酸含量，试验结果满意，便于推广应用。
Determination on humic acid for compound fertilizer by potassium bichromate titrimetric method, it is convenient to application and popularity, test results are satisfaction.
采用重铬酸钾容量法测定复混肥料中腐植酸含量，试验结果满意，便于推广应用。
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