Application of reel sprinkler in field crops

In China, farmland irrigation water accounts for 70% to 80% of the total water use, while field crops (wheat, corn, sweet potatoes, etc.) consume 50% to 60% of farmland irrigation water, so the key to agricultural water saving should be Put on field crops. At present, irrigation methods for field crops are mainly tube irrigation and canal irrigation, and canal irrigation still occupies a large proportion. Compared with canal irrigation, pipe irrigation has taken an important step in water-saving, but it has only improved the utilization rate of canal water, but the utilization rate of field water has not been greatly improved. Compared with pipe irrigation, fixed sprinkler irrigation has greatly improved water-saving effect, but due to the lack of coordination with traditional farming methods, it cannot be widely promoted. Semi-fixed and mobile sprinklers are also difficult to apply in large areas due to inconvenient operation and management. To explore the best water-saving irrigation modes for large-scale crops, Feicheng has invested more than 1.5 million yuan since 1996, and introduced more than 10 sets of reel-type irrigation machines with international advanced level, applied to field crops, and controlled an area of ​​333 hectares. It has achieved very good results. First, the reel type sprinkler model, performance Feicheng imported reel-type irrigation machines are produced in France, Austria produced two kinds are capsule-type sprinklers. French product models are SUPER I type telescopic capsule type and small type (MINI) telescopic capsules. Polyethylene burners (diameter 70 mm) are 300 meters long and 160 meters in length. The nozzle diameter is 12 mm to 22 mm. 18.2 cubic meters to 23.9 cubic meters per hour, gun pressure 350 kPa to 550 kPa, range 28.5 meters to 42.5 meters, sprayer traveling speed 16.0 meters to 20.0 meters per hour, water spray volume 20 mm. Austria's product models are TX65/300, TX75/350 two, diameter 65 mm, 75 mm polyethylene pipe length of 300 meters, 350 meters, nozzle diameter 18 mm to 20 mm, inlet pressure 806kPa, a range of about 40 meters, The sprayer travels at a speed of 19.0 to 21.8 meters per hour, with a rainfall of 20 millimeters and an area of ​​0.133 hectares per hour. Second, reel-type sprinkler irrigation area planning and design 1. Power matching According to the required flow of the irrigation machine, inlet pressure to select the appropriate pump model. 2. Land planning Scientific planning of land is a prerequisite for adapting to this advanced equipment. In order to rationally use the equipment, the land within the control area was re-planned and the planting structure was adjusted, and the planting methods, crop varieties, and production links in the project area were unified. In order to minimize conflicts and facilitate operation and irrigation, work paths are set for the direction of sprinkler irrigation and vertical crop planting, so that the beneficiary households can achieve a uniform balance in land occupation and lay a good foundation for the operation of the equipment. 3. Field engineering supporting design 1 water channel support. The reservoir is set at the intersection of the work road and the production road. The volume of the reservoir is designed according to the water spray volume of the sprinkler, generally about 20 cubic meters. In order to prevent the overflow of the reservoir, a cascade tank is used to connect the reservoir in series to grow a rattan melon system. The pipeline entrance is located at a distance of 5 cm from the bottom of the pool. 2 pump matching. In order to adapt to the characteristics of the continuous movement of the sprinkler, in the practical process, a diesel pump car with an integral pump is adopted, that is, a booster pump integrated with the tractor power is used. 3PE pipe traction method, in order to reduce the bending resistance of PE pipe to ensure uniform recovery, prevent the misalignment of the PE pipe, take the power fixed traction way, the tractor will be assembled on the end of the work path with a small hoist, corresponding to the sprinkler, and then Pull out the wire rope to the reel end, hung on the PE pipe to a predetermined location, and then install the nozzle car to start the operation. The advantage of this traction method is to avoid the rolling of the tractor, the PE pipe to maintain a straight line, bending is small, Easy to operate. Third, the application effect Since the operation of the reel-type sprinkler, it has played an important role in capturing agricultural harvest in the drought year, and has achieved significant economic benefits: 1 water-saving benefits. Compared with canal irrigation, water saving is 47%, and water saving is 9% compared with irrigation. 2 increase production efficiency. Compared with canal irrigation, it can increase production by 25% and increase production by 6% compared with pipe irrigation. 4. Internationally recognized management methods: 50% of the potential for water-saving irrigation is in management. In order to manage the sprinkler effectively and maximize its effectiveness, the company has established a water-saving irrigation company, endowed with an independent legal person status, and independently assumed civil and legal responsibility. The implementation of enterprise management and management, self-financing. The company believes that the people provide high-quality service, low-maintenance benefits, and benefits for the people's business principles. Each operation concludes an agreement with the beneficiary households and provides services in strict accordance with the agreement. The operation charges only three parts: energy consumption, labor, and equipment depreciation. Not charged. The company has formulated strict management rules and strengthened internal management to ensure that the company can continue to accumulate and gradually develop. The reel sprinkler has the benefits of water saving, energy saving, production increase, land saving and labor saving. The beneficiary crop can leave no crops and the land utilization rate can be increased by 10%. It can be applied to field crops such as wheat, corn, soybeans and vegetables. It is conducive to agricultural intensive production and management. It is a suitable irrigation mode for field crops and is suitable for large-scale promotion.

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