| 引用本文: | 马永康,王振华,李海强,等.水温与有机肥替代比例对滴灌骏枣产量及水分利用的影响[J].灌溉排水学报,2023,42(5):33-42. |
| MA Yongkang,WANG Zhenhua,LI Haiqiang,et al.水温与有机肥替代比例对滴灌骏枣产量及水分利用的影响[J].灌溉排水学报,2023,42(5):33-42. |
|
| 摘要: |
| 【目的】研究不同水温下有机肥替代比例对滴灌骏枣产量和水分利用效率的影响。【方法】通过大田试验，设置常规井水T1（（13±1）℃）和增温水T2（（21±1）℃）2个水温，全施化肥（CK）、有机肥替代10%（F1）、30%（F3）、50%（F5）、70%（F7）和90%（F9）的化肥6个施肥水平，共12个处理，分析不同滴灌水温下有机肥替代比例对土壤水分、骏枣耗水规律、产量以及水分利用效率的影响。【结果】在相同施肥水平下，T2处理较T1处理各生育期0~100 cm土层土壤水分降低，总耗水量增加1.14%~2.83%，骏枣产量和水分利用效率提高7.15%和5.10%。在相同灌溉水温下，随有机肥替代比例的增加，各生育期0~100 cm土层平均土壤含水率和耗水量均逐渐增加；骏枣产量和水分利用效率呈先增加后减少的变化趋势，且均在F5施肥水平下达到最大。与CK相比，在T1、T2处理下，施加有机肥使骏枣产量分别平均增加15.30%、13.14%，水分利用效率平均增加8.35%、5.78%。与T1F5处理相比，T2F5处理的产量和水分利用效率分别提高了10.10%、6.95%。【结论】回归分析表明，井水灌溉下有机肥替代化肥比例为50.00%~55.64%，增温水灌溉下有机肥替代化肥比例为41.01%~49.83%，这2种施肥模式适合吐哈盆地骏枣的种植，有利于增加产量提高水分利用效率。 |
| 关键词: 滴灌水温；有机肥；骏枣产量；水分利用效率 |
| DOI：10.13522/j.cnki.ggps.2022584 |
| 分类号: |
| 基金项目: |
|
| Effect of Water Temperature and Organic Fertilizer Substitution on Yield and Water Use of Honey Jujube under Drip Irrigation |
|
MA Yongkang, WANG Zhenhua, LI Haiqiang, LIN Haixia, LI Yanqiang, TAN Mingdong
|
|
1. College of Water Conservancy ＆ Architectural Engineering, Shihezi University, Shihezi 832000, China;
2. Key Laboratory of Modern Water-saving Irrigation of Xinjiang Production＆Construction Group, Shihezi 832000, China;
3. Key Laboratory of Northwest Oasis Water-saving Agriculture,
Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Shihezi 832000, China
|
| Abstract: |
| 【Objective】Organic fertilizers have been increasingly used as a substitute to reduce the detrimental impact of chemical fertilizers in China. In this paper, we studied the impact of its combination with drip irrigation water temperature on honey jujube growth and yield.【Method】The experiment was conducted in a field at Tuha Basin, where 10% to 90% of the chemical fertilizers was replaced by organic fertilizer. The control was without organic fertilizer substitution. For each fertilization, there were two irrigation water temperatures: conventional water temperature (13±1)℃ (T1) and warmed water temperature (21±1)℃ (T2). In each treatment, we measured water consumption, yield and water use efficiency of the jujube.【Result】When fertilization was the same, T2 reduced water content in the 0~100 cm soil layer and increased water consumption. Compared with T1, T2 increased yield and water use efficiency of the jujube by 7.15% and 5.10%, respectively. When the irrigation water temperature was the same, substitution of chemical fertilizer with organic fertilizer led to an increase in soil water content and water consumption. As a result, it increased the yield and water use efficiency of the jujube. However, when the substitution rate exceeded 50%, there was a decline in yield and water use efficiency. Specifically, when the substitution was 50%, T2 increased the yield and water use efficiency of the jujube by 10.10% and 6.95%, respectively, compared to T1.【Conclusion】Multivariate regression analysis suggested that under conventional irrigation water temperature, substituting 50.00%~55.64% of chemical fertilizer by organic fertilizer is optimal to improve yield and water use efficiency of the jujube, while when increasing the water temperature to 20 ℃, substituting 41.01%~49.83% of chemical fertilizer works the best for the jujube. |
| Key words: drip irrigation water temperature; organic fertilizer; yield of Jun jujube; water use efficiency |
