Amino acid organic fertilizer N-P-K-S:13-1-2-10 specification : ... matter, soil improvement, alleviate salt.Main index:Size:2-4MM, N : 1 3 % , P :1%, K: 2% S : 1 ... one-time fertilization.To use: after ditching and fertilizingApple trees, pear, jujube, grape, orange170-220KGS/MUBase fertilizer use: deep buried ... , 1000kg2.Storage: sealed, moisture-proof. Amino acid organic fertilizer (N-P-K-S:13-1-2-10)