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It is a high polymer heterogeneous aromatic hydroxyl carboxylic acid salt. It is black powder solid with slight gloss appearance. Dissolve in water and weak alkaline features. It comprises active groups hydroxyl, carboxylic acid, salt and nitro and so on. Specification:AppearanceBlack-brown powder / granuleSizeGranule:0.2-1mm/2-5mm; Powder:80meshOrganic Matter90%minHumic Acid (dry basis)80%minPotassium (as K2O)10%minWater Solubility97%minpH value8-10 Product efficacies:l Stimulate plant growth, increase yield and improve quality of plant.l Dissolved in water easily.l Increase the fertility of soil and adjust soil structure. Enhance the utilization of other nutrient fertilizers.l Increase permeability of plant membranes, easily absorbed by plant owing to its molecular weight.l Promote the crop resistance to drought and diseases. Package