垄作灌溉对水稻耗水量及产量的影响  

Effect of ridge irrigation on rice water consumption and yield

作　　者：黄挺 粟世华 罗维钢 吴家法 HUANG Ting;SU Shi-hua;LUO Wei-gang;WU Jia-fa(Nanning Irrigation Experimental Station,Nanning 530001,China;Guilin Farm Irrigation Experimental Centre Station,Guilin 541105,China;Guangxi University,Nanning 530005,China)

机构地区：[1]南宁市灌溉试验站,南宁530001 [2]桂林市农田灌溉试验中心站,广西桂林541105 [3]广西大学,南宁530005

出　　处：《广西水利水电》2022年第4期17-20,共4页Guangxi Water Resources & Hydropower Engineering

基　　金：国家自然科学基金(51469003);广西水利厅科技项目(201610)。

摘　　要：分析稻田垄作灌溉(RI)与平作淹灌(CK)两种不同灌溉方法对水稻分蘖数、耗水量和产量的影响。结果表明:1、在水稻整个分蘖期,RI方法的分蘖数都高于CK,分蘖后期RI、CK的分蘖数逐渐接近。2、早稻的日均耗水量最大值出现在拔节孕穗期,晚稻出现在抽穗开花期;RI、CK的各生育期耗水量最大值均出现在拔节孕穗期;除分蘖后期外,早稻各生育期的耗水量RI均低于CK;晚稻各生育期的耗水量RI同样低于CK。3、早稻与晚稻的株高、穗长、千粒重、产量,RI均高于CK,杆粗则低于CK;各产量指标之间差异不超过5%,差异不显著。研究结果显示,垄作灌溉模式有助于提升水稻的农艺性状,降低稻田耗水量,增加稻谷产量。The authors analyze the effect of two treatments of ridge irrigation(RI) and flooding irrigation(CK) on the tiller number, water consumption and yield of rice. The results of analysis show that: 1.RI renders higher tiller number than CK during the whole tillering period, and the tiller number of RI and CK gradually approach in the late tillering period;2. The maximum daily water consumption of RI and CK occur at the jointing and booting stage of early rice and at the heading and flowering stage of late rice;the maximum water consumption of RI and CK in each growth period occur at the jointing and booting stage;RI requires less water consumption than CK in each growth period for either early rice or late rice except in the late tillering period;3. Compared with CK, RI renders higher plant height, ear length, 1000-grain weight and yield of early and late rice, but renders smaller stem diameter, and the difference between the yield indexes does not exceed 5%. The results of study demonstrate that ridge irrigation is helpful to improve the agronomic properties of rice, reduce the water consumption and increase the yield of rice.

关 键 词：垄作灌溉 平作淹灌 水稻 耗水量 产量 

分 类 号：S275[农业科学—农业水土工程]