Analysis of water-saving irrigation technology in farmland water conservancy projects?

Science and technology and water-saving concept are constantly updated. It promotes the continuous progress of the use technology of farmland water conservancy projects in China, and faces the present situation of water resources utilization by social development. In order to improve the utilization value of water conservancy projects in farmland construction. Reasonably introduce water-saving irrigation technology. It is helpful to improve the economic benefits of water resources utilization and farmland production.

1, sprinkler irrigation technology

Sprinkler irrigation technology is the abbreviation of sprinkler irrigation technology. This technology is the main technology of farmland water-saving irrigation at present. It pressurizes water through power equipment such as water pump and power machine, and irrigates water to its covered area by using natural drop through sprinkler irrigation equipment with a certain height. Sprinklers spray water into the air. Make water disperse into small drops in the air and fall on the irrigated ground. This can not only save water resources. It can also make irrigation more uniform. In this way, all crops can be irrigated. According to the flexibility of sprinkler irrigation equipment, sprinkler irrigation technology can be divided into fixed, semi-fixed and mobile. Different types have different application scopes. Fixed sprinkler irrigation equipment, except nozzles. The rest can't move. The equipment is suitable for areas with large farmland area: semi-fixed sprinkler irrigation equipment can not only move the sprinkler, but also move the sprinkler branch pipe. Compared with fixed sprinkler irrigation equipment. It has good maneuverability and is suitable for farmland areas with large irrigation range: all parts of mobile sprinkler irrigation equipment can be moved. Of the three, it has the best mobility. It is more suitable for mountainous areas or farmland areas with relatively bad irrigation environment.

2. Micro-irrigation technology

Micro-irrigation is to transport water to irrigation area through pipeline system. Use the transmitter installed on the last stage pipeline. A small stream of water reduced the amount of water needed by crops. As one of the most important water-saving irrigation engineering technologies in modern times, micro-irrigation technology has obvious advantages in saving water, land, energy, labor, planting, soil and water conservation and improving crop quality. According to the outlet form of the emitter, micro-irrigation is generally divided into drip irrigation, micro-irrigation and small-tube outflow irrigation, in which drip irrigation uses emitters such as emitters and drip irrigation pipe (belt) to drip or drip irrigation. Irrigation technology of soil near root zone of wet crops. Generally, the emitter flow does not exceed12l/h; Micro-sprinkler irrigation is the use of micro-sprinkler, micro-sprinkler belt (pipe) and other emitters. It is a common irrigation method to spray pressurized water on the soil surface near the root zone of crops in the form of water spray. The flow rate of micro-sprinkler irrigation is 20 ~ 240 L/h: small tube outflow irrigation uses flow stabilizer to stabilize the flow rate, and small tube disperses the flow rate. An irrigation method of pouring a small stream of water onto the soil surface. The flow rate is equivalent to that of micro-sprinkler irrigation.

3, canal seepage control irrigation technology

This technology is the most widely used technology in agricultural irrigation in China. It is also the main technical measure of water-saving irrigation technology research in China. Canal seepage control irrigation technology is based on traditional canal irrigation technology, which uses seepage control materials to reduce water leakage loss. At present, according to the different impervious materials, canal impervious irrigation technology can be divided into many types, such as plastic film impervious, brick lining, concrete lining and asphalt facing impervious.

4. Application of walking irrigation technology

Walking irrigation technology uses all kinds of existing agricultural machinery and electricity in rural areas as irrigation power to support the corresponding supporting irrigation equipment. Adaptive Walking Water-saving Irrigation Technology Popularizing Mobile Irrigation is an organic combination of water-saving agriculture and agricultural mechanization technology. Walking irrigation machinery does not need complicated equipment. Assemble the machine by assembly. It has strong adaptability and convenient flow, and can irrigate urgently needed areas and crops. This irrigation technology does not need a lot of channel repair works. Save labor and money. And the effectiveness of irrigation is ensured.

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