... rate of fertilizer. Specifications:N+P2O5+K2O≥5%Organic matter≥30%Organic phosphorus≥13%PH : 6-7.8Product Formula : ... stone powder,plant ash, magnesium sulfate and so on.Organic fertilizer efficacy :Resistance to continuous cropping, water retention, free ... soil, increase production and improve the quality of products.Organic fertilizer contains a variety of beneficial microbes, amino acids, ...