Humic acid can increase the utilization of mineral fertilizers effectively in soil, promote the soil structure, increase the capacities of the earth water holding, cation exchange and aeration condition, stimulate activities of soil microorganism, and reduce pollutants in the soil. It promotes the plant photosynthesis, increases crop yield, and improves the quality of agricultural products.
Buy potassium humate fertilizer --humic acid 70%
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in section "Gumat potassium"