| Cite this article: | 邵志远,蒋静,张毅,等.不同灌水和施氮处理对燕麦产量、耗水特性和土壤盐分的影响[J].灌溉排水学报,2022,():-. |
| shaozhiyuan,jiangjing,zhangyi,et al.不同灌水和施氮处理对燕麦产量、耗水特性和土壤盐分的影响[J].灌溉排水学报,2022,():-. |
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| Effects of Different Irrigation and Nitrogen Application on Oat Yield, Water Consumption Characteristics and Soil Salinity |
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shaozhiyuan1, jiangjing1, zhangyi2,3,4, zhangchaobo1
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1.Taiyuan University of Technology;2.Houma city Fengcheng Township People'3.'4.s Government
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| Abstract: |
| 【Objective】The effect of different water and nitrogen treatments in saline-sodic areas on water consumption characteristics, yield and soil salinity of oat was investigated.【Method】The pot experiment was carried out with naked oat as the research material. The variety was Ba you 18. Two irrigation rates of W1 (120% ET) and W2 (100% ET) were set, and four nitrogen application rates of N0 (0), N1 (70 kg·hm-2), N2 (140 kg·hm-2) and N3 (210 kg·hm-2) were set.【Result】The results showed that water consumption and yield would be significantly increased with proper increase of irrigation water and nitrogen application（p<0.05）, while water use efficiency would decrease with increase of irrigation water and increase with increase of nitrogen application. Increased nitrogen application resulted in increased soil salinity. W1 irrigation treatment was more conducive to reducing soil salt content, but it would consume a large amount of water. The agronomic use efficiency and yield of nitrogen fertilizer in N2 treatment were the largest, which were 3.2 kg·kg-1 and 1 405.3 kg·hm-2，respectively.【Conclusion】When the irrigation amount and the nitrogen application amount were 120% ET and 140 kg·hm-2 respectively, the soil water content and the electrical conductivity were maintained at 17.84%-21.91% and 2.54-3.12 dS·m-1，respectively, which could guarantee that planting oat in the saline-alkali area could not only improve the water and nitrogen utilization efficiency, but also obtain better yield. |
| Key words: Water and nitrogen regulation; oat; water consumption characteristics; yield; soil salinity |
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