The role of humic acid water-soluble fertilizer

Humic acid water-soluble fertilizer can improve the utilization rate of nitrogen fertilizer: nitrogen fertilizer is an indispensable fertilizer for plant growth, mainly urea and carbamines, when urea and carbamines are applied to the ground, they will soon be lost with air and water, and the nitrogen element nutrients that crops can really absorb and use are only 30%. Acidic functional groups such as aromatic nuclei, hydroxyl groups and carboxyl groups in humic acid can react with nitrogen to form stable new ion groups. These complexes remain in the soil for a long time and gradually decompose and release nitrogen, allowing plants to absorb it slowly. Humic acid water-soluble fertilizer has a synergistic effect on phosphate fertilizer: After the application of fast-acting phosphate fertilizer into the soil, the phosphorus element will be fixed by metal ions in the soil, so that the fast-acting phosphorus will be converted into late acting phosphorus or ineffective phosphorus. The acidic functional groups such as aromatic nucleus, hydroxyl group and carboxyl group in humic acid can react with phosphorus element, making it soluble phosphorus, increasing the activity of phosphorus element and easy to be absorbed by plants. According to statistics, the fertilizer efficiency of phosphate fertilizer can be relatively increased by 5-10% after adding humic acid fertilizer. Humic acid water-soluble fertilizer has a synergistic effect on potassium fertilizer: the functional group in humic acid can also absorb and store potassium ions, which can prevent potassium ions from being lost with water in sandy soil and prevent the fixation of potassium in cohesive soil, which can improve the utilization rate of potassium fertilizer by about 5%. Humic acid water-soluble fertilizer has the effect of water retention and fertilizer preservation: humic acid interacts with calcium ions in the soil to form flocculent precipitated colloids, which can cement the soil together, make the soil particles into a small reservoir and fertilizer reservoir for water retention and fertilizer preservation, increase the soil void, thus improving the soil water retention and fertilizer retention ability.