... soil nutrients, improve soil fertility, improved soil structure, it is very good organic fertilizer for green ... and pollution-free agricultural production. product Features: 1, The organic matter of amino acid organic ... index:Size:2-4MM, N : 1 3 % , P :1%, K: 2% S : 1 0%,Organic matter:16%; Amino ... .To use: after ditching and fertilizing Notes: 1. Fertilization when leaving the seed, plant,tree ...