Quality standard: free amino acids 80% (chlorine-free). A compound amino acid powder refined by hydrolysis of dual animal and plant protein sources. It chelates soil nutrients and stimulates root growth for steady, vigorous crops with high fertilizer utilization and markedly higher yield; it improves the crop rhizosphere microenvironment, suppresses soil-borne diseases and shows obvious resistance to continuous cropping. Suitable for base and top dressing and for compounding water-soluble fertilizers.
