Five advantages of sprinkler irrigation
a. Water saving: Because sprinkler irrigation can control the amount and uniformity of spray water, avoid ground runoff and deep leakage loss, so that the water utilization rate is greatly improved, generally 30%-50% less water than flood irrigation, water saving also means saving Power to reduce irrigation costs.
b. Labor saving: sprinkler irrigation is easy to realize mechanization and automation, which can save a lot of labor. The cancellation of field water delivery ditches is not only conducive to mechanical operations, but also greatly reduces the amount of field labor. Sprinkler irrigation can also be combined with chemical fertilizers and pesticides, and can save a lot of labor. According to statistics, the labor required for sprinkler irrigation is only one-fifth of surface irrigation.
c. Improve land utilization rate: When sprinkler irrigation is used, irrigation ditches and borders in the field are not required. It can make full use of arable land than ground irrigation, and improve land utilization rate. Generally, it can increase the arable area by 7%-10%.
d. Increase production: Sprinkler irrigation facilitates strict control of soil moisture and maintains the soil moisture in the most suitable range for crop growth. Moreover, the dust on the stems and leaves of plants can be washed away during sprinkler irrigation, which is conducive to plant respiration and photosynthesis. In addition, sprinkler irrigation does not produce damage to the soil such as erosion, so as to maintain the aggregate structure of the soil, make the soil loose and porous, and have good aeration, which is beneficial to increase production, especially the effect of increasing vegetable production.
e. Strong adaptability: Sprinkler irrigation is highly adaptable to various terrains. It does not need to level the ground like ground irrigation. Sprinkler irrigation can be carried out on slopes and undulating ground. Especially in the sandy soil with thin soil layer and strong water permeability, it is very suitable for sprinkler irrigation. In addition, sprinkler irrigation is not only suitable for all field crops, but also can obtain good economic effects for various cash crops, vegetables, and pastures. Sprinkler irrigation has many advantages, but there are also disadvantages. The main reason is that the investment cost is high. At present, the mobile sprinkler irrigation system is the cheapest, and the investment per mu also needs 20-50 yuan/mu. In addition, it is greatly affected by wind speed and climate. When the wind speed is greater than 5.5 m/s (equivalent to level 4 wind), raindrops can be blown away, which reduces the uniformity of sprinkler irrigation and is not suitable for sprinkler irrigation. Secondly, when the climate is very dry, the evaporation loss increases, which will also reduce the effect.
A complete sprinkler irrigation system generally consists of nozzles, pipe network (water pipe network), header (water diversion equipment such as water pump) and water source. In general, under normal circumstances, sprinkler irrigation is more resource-saving and more efficient than conventional irrigation. Choose the right nozzle for correct installation and adjustment to ensure high-quality work.
