... for green food and pollution-free agricultural production. product Features: 1, The organic matter of amino acid organic fertilizer, amino acid ... , soil improvement, alleviate salt.Main index:Size:2-4MM, N : 1 3 % , P :1%, K: 2% S : 1 0%,Organic matter:16%; Amino acid ... one-time fertilization.To use: after ditching and fertilizing Notes: 1. Fertilization when leaving the seed, plant,tree trunk;2. When ...