Humic Acid Improves the Utilization Rate of NPK
Nitrogen - Due to humic acid has many times higher than soil salt exchange capacity, it can absorb a large number of ammonium ions, so as to reduce the loss. At the same time, humic acid has a good inhibitory effect on urease and nitrifying bacteria, which can greatly improve the slow release and use efficiency of urea.
Phosphorus - It can interact with the fixed phosphorus fertilizer in the soil to convert it into available phosphorus. It can protect phosphorus, improve the utilization rate of phosphorus fertilizer and improves the mobility of phosphorus. It is an effective additive for DAP/MAP, etc.
Potassium - It has a strong adsorption effect on K+ and can reduce potassium loss. It can dissolve potassium minerals such as potassium silicate feldspar and increase the available potassium content in soil.