| Effect of micro-sprinkler irrigation on growth, yield and water use efficiency of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2018.01.19 |
| Key Words: winter wheat micro-sprinkling irrigation irrigation amount growth yield water use efficiency |
| Author Name | Affiliation | | XU Yuan-bo | Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China | | LI Yuan-nong | Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China | | YIN Min-hua | Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China | | REN Quan-mao | Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China | | WANG Xing-yao | Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China | | CHEN Zi-wei | Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China |
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| Abstract: |
| In order to study the effects of different irrigation amounts on winter wheat growth, yields and water use efficiency, a field experiment was conducted from October, 2015 to June, 2016. The winter wheat “Xiaoyan No.22” was selected as the test material. Four irrigation treatments were performed in this study: W0 (no water through the whole crop growth period), low water treatment of W1 (20 mm water supply during both jointing and flowering stages), medium water treatment of W2 (40 mm) and high water treatment of W3 (60 mm). The results showed that wheat growth was improved with the increase of the irrigation amount. As compared to W0, grain yields of W1, W2 and W3 were increased by 17.75%, 35.78% and 36.72%, respectively, but it was not significant for that between W2 and W3. The water use efficiency and harvest index from the treatment W2 were the highest, which increased 0.22 kg·m-3 and 0.01 when compared to W3. Overall, the treatment of W2 with 40 mm water supply during both the jointing and flowering stages was an optimal irrigation mode in terms of output and water input. |
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