Name :Humic acid Trait Black powder Name Humic acid powder TraitBlack powderQuality indexHA(dry) ¡Ý 60%, organic matter ¡Ý 70% Moisture:15-20%(summer) ,20- ... kinds of compound fertilizer, It is main material of organic fertilizer , compound fertilizer.Improve the soil, to make ... the soil richer and Penetration, increase the organic matter content, alleviate salinization of the soil.To balance ...