What are the benefits of water saving irrigation and what are the ways to do it now

Water-saving irrigation is to reduce losses in the process of water transfer in the field and in the process of irrigation in the field, and improve the efficiency of irrigation water. It has reduced the workload of farmland water conservancy construction and promoted agricultural modernization.

At the same time, it is conducive to preventing secondary salinization of soil caused by flood irrigation and promoting farmers' production and income.

At present, there are 11 main types of water-saving irrigation methods promoted in China: channel seepage prevention, pipeline water transportation, sprinkler irrigation, micro sprinkling, drip irrigation, membrane irrigation and membrane irrigation, controlled irrigation, water planting, land leveling and ditch transformation, scientific irrigation and water-saving management, agricultural water-saving measures, etc.

The intelligent well irrigation control system is the embodiment of water-saving irrigation.

1. The advantage of water-saving irrigation is that it can save water. Because of its fully automated integrated equipment, it has electronic information collection, which can detect the farmland environment in real time, and irrigate reasonably according to crop growth conditions and farmland conditions to reduce water waste. Irrigation is sprinkled through pipes, spray guns or sprinkler heads, and farmland is sprayed evenly, quantitatively and regularly, which effectively detects and controls the amount of water used, and saves water waste to a certain extent.

2. Due to the influence of geographical conditions, environmental climate and soil differences, the growth of crops will be limited to a certain extent, but the water-saving irrigation system can monitor the soil situation in real time, effectively improve the soil environment, and create better growth conditions for crops.

3. Reduce labor costs. We all know that the area of farmland is large, irrigation requires a lot of time and manpower, water-saving irrigation is a fully automatic irrigation mode, with PC display platform and mobile terminal can be remotely controlled, irrigation.

Water-saving irrigation is a kind of scientific intelligent irrigation, which itself actually has certain shortcomings, but it has a more significant effect in saving water resources and improving utilization rate.

China's "Twelfth Five-Year Plan" makes it clear that the state will increase investment in water conservancy construction, build hundreds of water-saving agricultural demonstration areas nationwide, add 100 million mu of water-saving agricultural technology promotion area, and increase the production efficiency of irrigation water and natural precipitation by 10%. What are the main ways of water-saving irrigation?

1. Pipeline water transportation. Pipeline water conveyance is the use of pipelines to transport water directly to the field for irrigation, so as to reduce leakage and water evaporation loss during the transportation of open channels. In developed countries, pipelines have been widely used for irrigation and water transport.

At present, the popularization and application of pipeline water in the well irrigation areas in northern China is also very fast. Commonly used pipes include concrete pipes, plastic hard (flexible) pipes, metal pipes, etc. Compared with channel water transportation, pipeline water transportation has the advantages of fast water transmission, water saving, land saving, and increased production.

The advantages are: the water use coefficient can be increased to; 20%-30% power saving; Save 2%-3%; Production increased by 10%. At present, low-pressure plastic pipes are used to transport water, excluding the investment in water source engineering construction (the same below), and the investment per mu is 100 yuan to 150 yuan.

When conditions permit, pipeline water transmission should be actively developed in light of the actual situation. However, pipeline water transmission only reduces water loss in the process of water transportation, and in order to use water efficiently, it is necessary to support water-saving measures such as spraying and drip irrigation. Where sprinkler and drip irrigation equipment cannot be supported at present, the requirements of future sprinkler and drip irrigation development on pipeline layout and pipeline bearing capacity should be considered to avoid waste.

2. Infiltration irrigation is a method of using porous pipes or microporous tubes with small holes buried under the surface to make irrigation evenly and slowly penetrate into the underground soil in the root zone of crops, and use capillary force to moisten the soil. This technology has the characteristics of water saving, energy saving and convenient cultivation. Do not damage the soil structure; It is good for the control of weeds and pests and diseases.

In Israel, water-saving irrigation technology is ubiquitous. Drip irrigation facilities are laid from farmland, orchards, urban boulevards, and even flower pots or trees on residents' balconies. 90% of the greenhouse planting is drip irrigation, which is mainly used for high value-added vegetables, fruits, flowers and other crops, and the maximum water resource utilization rate reaches 95%.

Therefore, it is very feasible and necessary for China to adopt water-saving irrigation technology to ensure food security in the arid areas of western China.

3. Micro-sprinkler irrigation is a new development situation of micro-sprinkler irrigation. This is the use of plastic pipes for water delivery and local irrigation through micro-sprinkler irrigation.

4. Drip irrigation is the use of plastic pipes to transport water to the roots of crops, and local irrigation is carried out through the orifice or dripper on the capillary with a diameter of about 10 mm.

Drip irrigation, sprinkler irrigation, etc. drip irrigation, which is irrigated through a low-pressure piping system according to the water requirements of crops; Sprinkler irrigation, where pressurized water is sprayed into the air through a sprinkler pipe to form water droplets.

Sprinkler irrigation, drip irrigation, underground irrigation, micro-irrigation, channel irrigation. These are very common ways.

Drip irrigation, sprinkler irrigation, etc. drip irrigation, which is irrigated through a low-pressure piping system in accordance with the requirements of the necessary water for crops; Sprinkler irrigation, which radiates pressurized water to the ground through the sprinkler pipe to form water droplets.

Drip irrigation, film irrigation, sprinkler irrigation, pressure irrigation, micro sprinkler irrigation, these can save water and allow plants to grow better.

Water-saving irrigation includes sprinkler irrigation, pipeline water transportation, underground irrigation, micro irrigation, drip irrigation, channel seepage prevention, etc.

1. Sprinkler irrigation: Sprinkler irrigation is to spray water into the air with the help of pumps and pipeline systems or the drop of natural water sources to form small water droplets and sprinkle them on crops.

2. Pipeline water transportation: Pipeline water transportation is the use of pipelines to directly send water to the field for irrigation, so as to reduce water leakage and evaporation loss in the process of open channel transportation.

3. Drip irrigation: Drip irrigation is the use of plastic pipes to send water to the roots of crops through the orifice or dripper on the capillary with a diameter of about 10mm for local irrigation.

5. Micro-irrigation: Micro-irrigation is to evenly and accurately deliver water and nutrients to the soil near the roots of crops through the pipeline system and the irrigator installed on the final pipeline according to the water requirements of the crop.

6. Channel seepage prevention: channel seepage prevention is to change the water transportation of the earthen canal into an anti-seepage channel for water transportation, which can increase the utilization coefficient of water to 50-70% compared with the water transportation of the earth canal.