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| DOI：10.13522/j.cnki.ggps.20180202 |
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| Effect of Alternate Surge Flow Irrigation on Soil Moisture and Water Use Efficiency of Winter Wheat Field |
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XIN Qi, LIN Shaozhe, WANG Nina, RONG Xu, LI Zongyi , WANG Chuntang
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College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Tai’an 271018, China)
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| Abstract: |
| 【Objective】 Surge flow irrigation is believed capable of improving irrigation uniform and hence irrigation water use efficiency. In this paper, we investigate the impact of alternate surge flow irrigation on soil moisture dynamics and water use efficiency of a winter wheat field.【Method】We studied four irrigation treatments: standard surge flow irrigation (S), alternate surge flow irrigation (AS), fixed surge flow irrigation (FS) and continuous irrigation (C). In each treatment, we measured the advancing speed of surface water front, irrigation uniformity, water use efficiency (WUE) and yield of the wheat.【Result】The advancing speed of the surface water front under surge flow irrigation was faster than that under continuous irrigation; S gave the best irrigation uniformity, followed by AS, FS and C sequentially. The AS gave the highest yield, followed by S, FS and C sequentially. Compared with C, AS, FS and S increased water use efficiency by 43.84%, 28.76% and 26.03% respectively.【Conclusion】Our results alluded that alternate surge flow irrigation is most effective in improving water use efficiency and yield and can be used to irrigate winter wheat in Tai’an region of Shandon province. |
| Key words: surge flow irrigation; water advancing speed; irrigation uniformity; winter wheat; water use efficiency |
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