The regulating effect of humic acid on nutrient forms in fertilizers
Humic acid can be used as a fertilizer synergist in agriculture. It has the following three regulatory effects on the nutrient form in fertilizers: (1) Humic acid can generate humic acid-urea complex through the interaction of its own carboxyl group and phenolic hydroxyl group with the amide group of urea. This substance has high stability, […]










