The effects of humic acid on crops are mainly reflected in three aspects: plants, fertilizers, and soil. So how does it produce this series of effects on crops? It mainly includes four aspects:
1. It affects the growth of roots and their absorption of nutrients by directly acting on plants (especially plant roots).
2. It enhances plant stress resistance by regulating the plant active oxygen system and cell membrane permeability and improving the plant growth environment.
3. It affects and promotes the nutrient supply of plants by regulating the nutrient form of soil and fertilizer.
4. It affects the nutrient form in the soil and after fertilizer application by affecting the soil microbial community structure and soil enzyme activity.
In summary, the effect of humic acid on crops is green and natural, and it can regulate the growth of crops from multiple angles. It is a good plant growth promoter.