PAM (PAM) itself is not toxic. It can be used as an improvement agent for soil structure in agricultural production. It not only has water retention, but also functions of soil conservation, fertilizer retention, heat preservation and yield increase. The promotion and application of PAM in agriculture is of great significance for improving the utilization of irrigation or precipitation in arid and semi-arid regions of China.

Water retention:

The addition of PAM to the soil can increase soil moisture content, inhibit soil crust formation, and increase water intrusion. PAM can increase water intrusion, increase soil moisture content, and maintain soil water content for a period of time after rainfall or irrigation. The larger the application amount of PAM, the better the water retention effect, but when the application amount is too large, the opposite effect is exerted. The recommended application rate is 3-12KG/Km2.

Fertilizer effect:

PAMPAM can also affect the adsorption of fertilizer on soil. PAM stabilizes the structure of the aggregate and adsorbs the fertilizer elements by stabilizing the water, inhibits the loss of fertilizer elements, and improves the utilization rate of fertilizer. The content of organic matter, available phosphorus, available potassium and available nitrogen increased significantly in PAM-treated soil. A lot of practice has proved that using PAM can improve fertilizer efficiency by 25%-60%.

Insulation:

In the soil where PAM is applied, the water is adsorbed by the network structure, the free water is reduced, the soil conductivity is lowered, the soil temperature is low during the day, the night is high, the daily temperature difference is reduced, and the growth of the crop is utilized.

Increase production:

The application of PAM enhances the water retention and fertilizer retention of the soil, enhances the agglomerate structure of the soil, improves the permeability and drought resistance of the soil, improves the soil environment, and provides a relatively superior environment for crop growth and development. Significantly increased crop yields. Experiments have shown that by applying PAM, the dosage is 18KG/Km2, which can increase the yield of wheat by 9%.