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Drip irrigation with an effective way to increase water production by water saving irrigation

Number of hits:992019-04-27 19:18:30

Drip irrigation is to put water with a certain pressure. After filtration, the water is accurately, uniformly and slowly dripped into the soil of the crop root zone through the pipe network and the water outlet pipe (drip irrigation belt) or the dripper in the form of water droplets to achieve the purpose of irrigation. It has less water, is easy to control, and has a significant water saving effect. The drip irrigation system consists of a water source project, a first hub, a pipeline and a dripper. The classification of drip irrigation can be started from two aspects: 1. According to the arrangement and movement of capillary tubes in the field in drip irrigation, drip irrigation systems can be divided into fixed, semi-fixed and mobile; 2. Operation according to control system Different ways, drip irrigation system can be divided into three categories: manual control, semi-automatic control and fully automatic control. Drip irrigation has many advantages in agricultural irrigation: water saving and labor saving, energy saving and fertilizer saving, as well as increasing production and income.

1. Drip irrigation system saves water and labor

       Because drip irrigation is a whole pipeline water delivery, the water does not move in the air during irrigation, and does not wet the foliage. The irrigation water only wets the root soil, avoiding evaporation of the soil surface outside the effective wet area, and the water loss is small. Because drip irrigation is a local micro-irrigation, it is easy to control the amount of water, and it will not cause surface runoff and deep soil leakage. Reduce moisture leakage and loss to a lower limit. Generally, water is 30% to 50% lower than that on the ground (for example, drip irrigation under cotton film is 60% higher than water irrigation, and some crops can reach 80%). It is 10% to 20% lower than sprinkler irrigation. Large-water flood irrigation can only irrigate flat farmland, and drip irrigation can adapt to almost any complex terrain. Most of the drip irrigation field is dry, which is convenient for other farming operations while watering. Due to the lack of sufficient water supply between the plants, weeds are not easy to grow, and the disturbance of crops and weeds competing for nutrients is greatly reduced, reducing the use of weeding. The drip irrigation system utilizes Chongqing irrigation equipment only by manual or automatic control of valves, combined with fertilization and spraying of pesticides, so it obviously saves labor input and reduces production costs.

2. Drip irrigation system energy saving

       Drip irrigation can effectively control the water output of each dripper, and the uniformity of irrigation is high, generally up to 80% to 90%. The drip irrigation water utilization rate is high, so the pumping amount is reduced, and the pumping energy is also reduced accordingly. Drip irrigation can scientifically supply water to the crop root zone according to crop growth and weather conditions according to crop fertilizer requirements, and improve fertilizer utilization. Drip irrigation can be conveniently combined with fertilization, that is, the fertilizer is dissolved and then poured into the drip irrigation system. Since the combination of chemical fertilizer and irrigation water, the water and fertilizer synchronization is realized, the effective utilization rate of the fertilizer is greatly improved, and at the same time, due to the small-scale local control, Micro-irrigation, less leakage of water and fertilizer, can save fertilizer application and reduce pollution. Drip irrigation reduces the humidity of the field, which is not conducive to the occurrence of plant diseases. It is particularly prominent in the greenhouse, which can save 50% of the medicine. It is convenient to use the fertigation technology to timely supplement the valuable trace elements and avoid waste. .

3. Dropper system increases production and income

       Drip irrigation can scientifically adjust the supply of crop water and fertilizer, regulate soil permeability, control the field environment, effectively control the occurrence of pests and diseases, thereby improving the quality of agricultural products, and the time to market for agricultural products, so that the unit price of agricultural products can be improved. Chongqing's water-saving irrigation brings unfortunate economic benefits to farmers. Drip irrigation can scientifically supply water to the crop root zone according to crop growth and weather conditions according to crop fertilizer requirements, and improve fertilizer utilization. Since the crop root zone can maintain a good water supply state and a fertilizer supply state, it can significantly increase crop yield. In recent years, it has been proved that the drip irrigation of corn under the spring in northern China is 30%-40% higher than that of ordinary cultivation. The drip irrigation in the greenhouse is 20% to 25% higher than that of flood irrigation. Drip fertigation can reduce the number of times the machinery passes through the field, thereby reducing the damage to the soil structure of the plough layer, reducing the mechanical loss of crops, and improving fertilizer utilization and fertilizer efficiency. Reduce the pollution of fertilizers to the environment, and achieve the purpose of saving costs and increasing efficiency.
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