Ammonium sulfate is the main nitrogen source of compound fertilizers and as a nitrogen fertilizer can be directly fertilized to crops.
In Brazil, corn, sugar cane, coffee and cotton are mainly used. It can make the branches and leaves grow vigorously, improve the quality and yield of fruits, enhance the resistance of crops to disasters, and can be used as base fertilizer, topdressing and seed fertilizer

Amino acid fertilizer is applied by spraying along the leaves, drip irrigation and flood irrigation.
Amino acid fertilizer can quickly provide plants with amino acids and other nutrients，improve the protein and sugar content of crops, so as to improve crop quality and product taste. At the same time, the yield increasing effect of amino acid fertilizer is very obvious. 

As a nitrogen-containing organic matter, amino acid can provide nitrogen nutrients for soil, improve soil quality, reduce fertilizer residue, improve fertilizer utilization rate and reduce environmental pollution.

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Organic fermentation
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