What is a water-saving irrigation system
Sprinkler irrigation is an irrigation method in which water with a certain pressure is sprayed into the air by means of a water pump and a pipeline system or by using the drop of natural water sources, scattered into small water droplets or formed a mist that falls on plants and the ground.
water saving irrigation system
Sprinkler irrigation system is a water conservancy facility that takes water from water sources, transports and distributes it to the fields, and implements sprinkler irrigation. It consists of three parts: water source engineering, water transmission and distribution channels or pipes, and spraying equipment. Sprinkler irrigation system refers to an irrigation method that uses machinery and power equipment to make water shoot into the air through sprinklers (or nozzles) and land in the field in the form of raindrops. Sprinkler irrigation equipment is composed of water inlet pipes, water pumps, water pipes, water distribution pipes and sprinklers (or nozzles), which can be fixed, semi-fixed or mobile. It has the advantages of saving water, not destroying the soil structure, adjusting the ground climate and not being restricted by terrain.
Features of Water-Saving Sprinkler Irrigation System
①Water saving: Since sprinkler irrigation can control the amount and uniformity of water spray, avoid surface runoff and deep leakage losses, and greatly improve the utilization rate of water. Generally, it saves 30% to 50% of water compared with flood irrigation. Water saving also means Save power and reduce irrigation costs.
②Labor saving: Sprinkler irrigation is easy to realize mechanization and automation, which can save a lot of labor. Due to the cancellation of the field water ditches, it 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, which can save a lot of labor. According to statistics, the labor required for sprinkler irrigation is only one-fifth of that of ground irrigation.
③Improve land utilization: When using sprinkler irrigation, irrigation ditches and ridges in the field are not required. Compared with ground irrigation, cultivated land can be fully utilized and land utilization can be improved. Generally, the cultivated area can be increased by 7% to 10%.
④Increase yield: Sprinkler irrigation facilitates strict control of soil moisture and maintains soil moisture in the most suitable range for crop growth. Moreover, the dust on the stems and leaves of the plants can be washed away during the sprinkler irrigation, which is beneficial to the respiration and photosynthesis of the plants. In addition, sprinkler irrigation does not cause damage to the soil such as scouring, so as to maintain the granular structure of the soil, make the soil loose and porous, and have good ventilation, which is conducive to increasing yield, especially for vegetables.
⑤ Strong adaptability: Sprinkler irrigation has strong adaptability to various terrains, and it does not need to level the land like ground irrigation. Sprinkler irrigation can be carried out on sloping 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 has good economic effects on various cash crops, vegetables, and grasslands. Sprinkler irrigation has many advantages, but also disadvantages. The main reason is that the investment cost is high, and the mobile sprinkler irrigation system is the cheapest under the current conditions, and the investment per mu also requires 20-50 yuan per 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 4th grade wind), raindrops can be blown away, reducing the uniformity of sprinkler irrigation, and it is not suitable for sprinkler irrigation. Secondly, when the climate is very dry, the evaporation loss increases and the effect is reduced.
