不同控制灌溉模式对水稻主要农艺性状及品质的影响  

Effects of different control irrigation modes on the main agronomic characters and quality of rice

作　　者：彭劲舟 孙书洪 薛铸 邱菁华 张鹏飞 杨嘉润 Peng Jinzhou;Sun Shuhong;Xue Zhu;Qiu Jinghua;Zhang Pengfei;Yang Jiarun(College of Water Conservancy Engineering,Tianjin Agricultural University,Tianjin 300392,China;Tianjin Agricultural Water Resources Technology Engineering Centre,Tianjin 300384,China)

机构地区：[1]天津农学院水利工程学院,天津300392 [2]天津市农业水利技术工程中心,天津300384

出　　处：《天津农学院学报》2024年第2期25-30,共6页Journal of Tianjin Agricultural University

基　　金：现代都市农业智慧灌溉技术项目(XB202016);天津市主要农作物灌溉用水定额试验研究项目(无编号);天津市水稻节水灌溉关键技术研究项目(2021XY037);国家级大学生创新创业训练计划项目(202310061060)。

摘　　要：为探究水稻品质的水分管理模式,以水稻品种‘津原85’作为试验对象,采用4个不同控制灌溉模式,即控制土壤饱和含水率的60%(W1)、70%(W2)、80%(W3)、90%(W4)作为灌水下限进行试验处理,并以常规灌溉(CK)作为对照,分析了不同控制灌溉模式对水稻主要农艺性状、粳米品质的影响。试验表明:与对照相比,不同控制灌溉模式对水稻株高、茎叶干质量存在抑制作用,但能促进水稻穗部含水率的增长;不同控制灌溉模式下稻米品质均优于常规灌溉,直链淀粉含量以W2最高,超出CK 0.27%;不同控制灌溉模式下灌溉用水量较常规灌溉减少3990~5415 m^(3)/hm^(2)。通过对水稻各项品质指标以及灌溉用水量与降雨量之和进行综合评价,发现控制土壤饱和含水率90%作为灌水下限为最佳的水稻灌溉用水管理模式。In order to study the water management mode of rice quality,with rice variety‘Jinyuan 85’as the experimental material,four different control irrigation modes were arranged,namely 60%(W1),70%(W2),80%(W3)and 90%(W4)of soil saturation water content as the irrigation limit,and the effects of different control irrigation modes on the main agronomic traits and japonica rice quality of rice were analyzed with conventional irrigation(CK)as the control.The results showed that compared with the control,different control irrigation modes had inhibitory effects on rice plant height,stem and leaf dry weight,but could promote the increase of moisture content in rice ears.The quality of rice under different controlled irrigation modes was better than that of conventional irrigation.The amylose content W2 was the highest,which was 0.27%higher than that of CK.Different control irrigation modes reduced irrigation water consumption by 3990-5415 m^(3)/hm^(2)compared with conventional irrigation.Through the comprehensive evaluation of various rice quality indicators and the sum of irrigation and rainfall,it is found that controlling soil saturation moisture content of 90%as the limit of irrigation water is the best rice water management mode.

关 键 词：控制灌溉 农艺性状 水稻品质 

分 类 号：S274[农业科学—农业水土工程]