| 间歇灌溉缓释肥施肥水平对水稻生长特性及产量的影响 |
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| 引用本文： | 何军,张宇航,叶磊,钟盛建,何天楷,赵树君,高明利.间歇灌溉缓释肥施肥水平对水稻生长特性及产量的影响[J].中国农村水利水电,2021(3). |
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| 作者姓名： | 何军 张宇航 叶磊 钟盛建 何天楷 赵树君 高明利 |
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| 作者单位： | 三峡大学水利与环境学院;三峡大学三峡库区生态环境教育部工程研究中心;湖北省漳河工程管理局 |
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| 基金项目： | 湖北省教育厅科学技术研究项目(Q20161206);宜昌市应用基础研究项目(A17-302-a01)。 |
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| 摘 要： | 水稻水肥调控是水稻获得高产的重要原因。为揭示间歇灌溉模式下不同缓释肥施肥水平对水稻生产影响,选取湖北省漳河灌区为研究区域,以水稻品种荃早优丝苗为试验材料,于2019年6-9月开展了淹水灌溉W1和间歇灌溉W2两种灌溉模式以及传统肥N1和缓释肥N2不同施肥水平F(0.5)、F(0.75)、F(1)、F(1.25)、F(1.5)]互作条件下的水稻种植桶栽试验研究。结果表明,不同水肥处理对水稻株高、叶绿素SPAD终值的影响不显著,但在缓释肥条件下,植株株高、叶绿素SPAD值整体上在一定范围与施肥水平呈正相关,间歇灌溉模式下,N2F(1.5)处理与N2F(1)、N2F(0.75)处理差异显著,N2F(1.5)水平比N2F(1)、N2F(0.75)分别显著高出71%、91%。不同水肥处理对产量的影响显著,淹灌缓释肥W1N2F(1)处理产量最高可达18 170.29 kg/hm2,间歇灌溉传统肥W2N1F(1)处理次之,为17 826.86 kg/hm2。不同缓释肥施肥水平下淹灌模式产量比间歇灌溉平均高6.43%。传统肥条件下,间歇灌溉比淹灌产量高3.7%,缓释肥施肥水平对产量的影响最为显著。水稻种植施用缓释肥时,淹水灌溉模式更为适宜。
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| 关 键 词： | 间歇灌溉 缓释肥 水稻 株高 分蘖数 叶绿素 产量 |
The Effects of Slow-release Fertilizer Levels on Rice Growth Characteristics and Yields under Alternate Wetting and Drying |
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| HE Jun,ZHANG Yu-hang,YE Lei,ZHONG Sheng-jian,HE Tian-kai,ZHAO Shu-jun,GAO Ming-li.The Effects of Slow-release Fertilizer Levels on Rice Growth Characteristics and Yields under Alternate Wetting and Drying[J].China Rural Water and Hydropower,2021(3). |
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| Authors: | HE Jun ZHANG Yu-hang YE Lei ZHONG Sheng-jian HE Tian-kai ZHAO Shu-jun GAO Ming-li |
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| Institution: | (College of Hydraulic and Environmental Engineering,Three Gorges University,Yichang 443002,Hubei Province,China;Engineering Research Center of Ecoenvironment in Three Gorges Reservoir Region,Ministry of Education,Three Gorges University,Yichang 443002,Hubei Province,China;Hubei Zhanghe Project Administration Bureau,Jingmen 448156,Hubei Province,China) |
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| Abstract: | Water and fertilizer,two major factors affecting rice yields,have always been the focus of researchers.Zhanghe Irrigation District of Hubei Province is selected as the research area,and the rice variety Quanzaoyousimiao is used as the test material,and the barrels are used for cultivation.The main treatments are W1(CF,continuous flooding irrigation)and W2(AWD,alternate wetting and drying irrigation),and the secondary treatment are traditional fertilizer and slow-release fertilizer with different levels.Experimental studies on rice barrel cultivation under different irrigation modes coupled with traditional fertilizer N1 and fertilization levelsF(0.5),F(0.75),F(1),F(1.25),F(1.5)]of slow-release fertilizer are carried out from June to September in 2019.The results show that different water and fertilizer treatments have no significant effect on rice plant height,chlorophyll SPAD value,but plant height and chlorophyll SPAD value are positivelycorrelated with slow-release fertilizer levels in a certain range in general,and under alternate wetting and drying irrigation mode,the plant height and chlorophyll SPAD value of N2F(1.5)is significantly different from N2F(1)’s and N2F(0.75)’s,specifically,the N2F(1.5)level is significantly higher than N2F(1),N2F(0.75)levels by 71%and 91%,respectively.Different water and fertilizer treatments have a significant effect on yield,and the highest yield,continuous flooding slow-release fertilizer treatment W1N2F(1)could reach 18170.29 kg/hm2,treatment of alternate wetting and drying traditional fertilizer W2N1 followed by 17826.86 kg/hm2.The yield of continuous flooding irrigation model is 6.43%higher than that of alternate wetting and drying irrigation.Under traditional fertilizer,the yield of alternate wetting and drying irrigation is 3.7%higher than that of continuous flooding irrigation,and the effect of slow-release fertilizer on yield is the most significant.The continuous flooding irrigation mode is more suitable when applying slow-release fertilizer in rice cultivation. |
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| Keywords: | alternate wetting and drying slow-release fertilizer rice height tiller number chlorophyll yield |
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