Research on demonstration and application of the technical engineering for bidirectional drilling and self-lifting sprinkling irrigation device
The problem of water scarcity is becoming increasingly serious,and it is increasingly important to carry out re-search and application of water-saving irrigation facilities in farmland.This study applies a bidirectional soil drilling and self-lifting sprinkling irrigation device to agricultural vegetable planting demonstration areas,and it finalizes the optimal op-erating pressure for this device is 0.3 MPa by analyzing the variation of performance parameters such as nozzle flow rate,spraying radius,and spraying uniformity with experimental pressure.Under such pressure,the device realizes the transfor-mation of soil moisture from the mild to the moderate,and it plays a good water saving effect that the irrigation water quota decreases from 3 200 m3/hm2 to 2 800 m3/hm2.At the same time,through the introduction of bidirectional soil drilling and self-lifting sprinkling irrigation device,water-saving irrigation is carried out for the entire demonstration area,and the re-gional soil is effectively controlled within the range of suitable moisture.The total annual crop output in the demonstration area is increased by 43.4 t,and the economic output value increment isestimated as high as 347,300 yuan per year,see-ing a significant economic benefits.
NETL
NSTL
万方数据
