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| Pressure effect on rolling irrigation system uniformity |
| Li Qichao, Sun Wenfeng, Wang Yanhua |
| College of Engineering, Northeast Agricultural University, Harbin, Heilong jiang 150030, China |
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Abstract To solve problems such as uniformity poor, mobile inconvenience, large scale rolling irrigation system was developed. The effect of pressure on water distribution uniformity and intensity of the rolling irrigation system were investigated by single factor multiple comparison experiment. Using the functions of Design-expert. The results showed that pressure significantly influence the water distribution uniformity, and the water distribution uniformity increased with the increase of pressure. When the pressure is less than 0.30 MPa, the irrigation intensity had positive correlation with pressure. But when the pressure is larger than 0.30 MPa, the influence was insignificant. When the pressure is 0.40 MPa, the average water distribution uniformity coefficient is 88.75% and irrigation intensity is 12.3 mm/h, which meet the performance requirements of large scale side-roll irrigation system. The research provided reference for the promotion and application of rolling irrigation system.
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Received: 12 May 2015
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