... matter, amino acid, humic acid , sulfur and other nutrients, It is a multifunctional and multi purpose new fertilizer, could significantly increase ... the soil nutrients, improve soil fertility, improved soil structure, it is very good organic fertilizer for green food and pollution-free ... matter, soil improvement, alleviate salt.Main index:Size:2-4MM, N : 1 3 % , P :1%, K: 2% S : 1 0%,Organic matter:16 ...