| Cite this article: | 马永康,王振华,李海强,等.水温与有机肥替代对滴灌骏枣产量及水分利用的影响[J].灌溉排水学报,0,():-. |
| mayongkang,wangzhenhua,lihaiqiang,et al.水温与有机肥替代对滴灌骏枣产量及水分利用的影响[J].灌溉排水学报,0,():-. |
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| Effects of Water Temperature and Substitution Ratio of Organic Fertilizer on Yield and Water Use of Jun Jujube under Drip Irrigation |
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mayongkang1, wangzhenhua1, lihaiqiang2, linhaixia2, liyanqiang2, tanmingdong3
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1.College of Water Conservancy ＆Architectural Engineering, Shihezi University;2.College of Water Conservancy ＆Architectural Engineering, Shihezi University, Shihezi;3.CCllege of Water Conservancy ＆Architectural Engineering, Shihezi University
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| Abstract: |
| 【Objective】To provide theoretical support for rational fertilization and efficient use of water resources in Jun jujube in Tuha Basin, the effect of organic fertilizer substitution ratio on the yield and water use efficiency of Jun jujube under different drip irrigation water temperatures were studied.【Method】In this study, field experiments examining the following treatments: CK, application of chemical fertilizer only; and F1~F9, substitution of 10%, 30%, 50%, 70% and 90%, respectively, of the chemical fertilizer rate of CK with organic fertilizer. All the six fertilization levels combined with two different irrigation water temperatures, conventional well water T1 (13±1℃) and warmed water T2 (21±1℃), were implemented, with a total of 12 treatments. And soil water content, water consumption law, yield and water use efficiency of Jun jujube were evaluated.【Result】Under the same fertilization level, T2 showed the lower soil water content at the 0~100 cm soil depth than T1, but higher total water consumption. Compared with T1, the yield and water use efficiency of Jun jujube of T2 increased by 7.15% and 5.10%, respectively. Under the same irrigation water temperature, soil water content and water consumption of each growth stage were increased with the increasing substitution of chemical fertilizer, while the yield and water use efficiency of Jun jujube increased first and then decreased, and F5 recorded the highest ones. In addition, the yield and water use efficiency of T2F5 increased 10.10 and 6.95, respectively, compared with T1F5.【Conclusion】Multivariate regression analysis suggested that under conventional well water irrigation 50.00~55.64% substitution of chemical fertilizer with organic fertilizer for would be conducive to improve the yield and water use efficiency of Jun jujube, while 41.01~49.83% for warmed water irrigation, This fertilization model was suitable for the cultivation of Jun jujube in Tuha Basin, which was conducive to increasing yield and improving water use efficiency. |
| Key words: drip irrigation water temperature; organic fertilizer; yield of Jun jujube; water use efficiency; |
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