What are the methods to prevent agricultural non-point source pollution?

1, advocate more farmyard manure, less chemical fertilizers and pesticides, and try to develop organic, environmental protection and ecological agriculture.

2. Promote precision agriculture, improve utilization rate and reduce pollution.

3. Strengthen legislative management, improve policies and management systems, and further improve ecological protection laws and regulations.

4. Establish Scientific Outlook on Development, improve farmers' environmental awareness, improve the agricultural technology extension system and strengthen knowledge training.

Sources of agricultural non-point source pollution;

1, due to the continuous development of aquaculture in China, a large number of livestock manure is discharged directly without treatment, which is the main factor leading to eutrophication of water bodies in China.

2. Use of pesticides.

3. Excessive application of chemical fertilizer leads to serious damage to the physical and chemical properties of soil.

4. With the increasing use of plastic film, more and more films remain in farmland.