Different water-saving irrigation techniques are formulated according to different farmland water and soil conditions and different types of crops. The choice of water-saving irrigation technology should be adapted to local conditions, in line with the characteristics of crops and the soil and water conditions of farmland. In the application process of agricultural water-saving irrigation technology, the water-saving irrigation technology based on surface irrigation should be adopted for field grain crops with low output benefit. It is also necessary to strengthen the popularization and application of technologies with less investment, such as film ridge furrow irrigation technology. Under good conditions, water-saving irrigation technologies with high investment such as sprinkler irrigation technology or drip irrigation technology can be selected for farmland water conservancy projects.

2. According to the adjustment of crop planting structure, determine the choice and change of water-saving irrigation technology.

Adjusting the agricultural planting structure means expanding the planting area of forest and grass, compressing the planting area of cultivated land, expanding the planting area of cash crops, reducing the planting area of grain, expanding the planting area of low-water crops and reducing the planting area of high-water crops, so as to select and determine the water-saving irrigation technology and ensure the economic benefits and output of crops with unit water consumption.