Humic Acid Granule
Humic acid granular fertilizer can be used as base fertilizer and seed fertilizer, but cannot be used as top dressing. When used as seed fertilizer, mix it evenly with chemical fertilizers and then apply it deeply in layers at a depth of 7 to 14 cm; if used as base fertilizer, the fertilizer can be deeply sandwiched in the ridge body during soil preparation and ridge formation in spring and autumn. Humic acid fertilizer cannot be used alone, nor can it completely replace chemical fertilizers.
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