Pagsasama ng humic acid at NPK fertilizer
Bilang pagsasanib ng malalaking pataba, maaaring isama ng humic acid ang N, P, K, one-way fusion, two-way fusion o ternary fusion, tulad ng humic acid nitrogen fertilizer, humic acid phosphate fertilizer, humic acid potassium fertilizer, at humic acid tambalang pataba. ...
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