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Experimental Study on Irrigation Characteristics of Wheat under Surge Irrigation
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The present study depicts the effects of different surge flow irrigations on water flow speed and the quality of irrigation under the universal siphon device and explores the feasibility of replacing surge flow irrigation in wheat. Four irrigation treatments were implemented in wheat: surge irrigation group (S), alternating surge irrigation group (AS), fixed surge irrigation group (FS), and continuous irrigation group (C). In each treatment, we measured water flow speed, irrigation uniformity, water use efficiency (WUE) and the yield of wheat. The results revealed that under the universal siphon device, the water flow speed of surge flow irrigation was faster than that of continuous irrigation. Among the four kinds of irrigation, surge irrigation was more effective in enhancing irrigation uniformity. The irrigation uniformity of S treatment and AS treatment was 3.01% and 2.04% higher than C treatment, respectively. And AS treatment has better effect to increase the yield of winter wheat compared with the S and FS treatment. AS treatment has a better potential to improve water use efficiency, followed by FS treatment. They were 94.74 and 73.68% higher than C, respectively. Therefore, the use of alternating surge irrigation for winter wheat in Tai'an, can achieve significant water saving and yield-increasing effects.
Friends Science Publishers
Title: Experimental Study on Irrigation Characteristics of Wheat under Surge Irrigation
Description:
The present study depicts the effects of different surge flow irrigations on water flow speed and the quality of irrigation under the universal siphon device and explores the feasibility of replacing surge flow irrigation in wheat.
Four irrigation treatments were implemented in wheat: surge irrigation group (S), alternating surge irrigation group (AS), fixed surge irrigation group (FS), and continuous irrigation group (C).
In each treatment, we measured water flow speed, irrigation uniformity, water use efficiency (WUE) and the yield of wheat.
The results revealed that under the universal siphon device, the water flow speed of surge flow irrigation was faster than that of continuous irrigation.
Among the four kinds of irrigation, surge irrigation was more effective in enhancing irrigation uniformity.
The irrigation uniformity of S treatment and AS treatment was 3.
01% and 2.
04% higher than C treatment, respectively.
And AS treatment has better effect to increase the yield of winter wheat compared with the S and FS treatment.
AS treatment has a better potential to improve water use efficiency, followed by FS treatment.
They were 94.
74 and 73.
68% higher than C, respectively.
Therefore, the use of alternating surge irrigation for winter wheat in Tai'an, can achieve significant water saving and yield-increasing effects.
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