Everyone knows that PAM has the functions of heat preservation, water retention, fertilizer conservation and yield increase in agricultural production. This is of great significance in improving the use of irrigation water or precipitation in arid and semi-arid regions of China.

PAM is generally applied by spraying or spraying in agricultural applications. The method of spreading is to spread the PAM dry powder evenly on the surface of the soil or during irrigation. The method is simple to operate. The spraying method is to dissolve the PAM dry powder in water at a certain concentration, and then spray the solution evenly on the surface of the soil. This method requires a large amount of water, and it takes a certain time to dissolve, and it is not very convenient to use. Combining the advantages and disadvantages of the two methods, in practice, combined with the actual situation, the method of spreading is generally adopted. After years of practice and research, the application rate of PAM in agriculture is best controlled at 3-12 Kg/km2.