浅控结合灌溉技术对不同季别杂交稻的增产效应研究  

Yield-increasing Effects of Shallow and Controlling Irrigation Technology on Super Hybrid Rice in Different Seasons

作　　者：熊国平 喻黎明[2] 

机构地区：[1]湖南省灌溉试验中心站,湖南沅江413100 [2]长沙理工大学水利工程学院,湖南长沙410114

出　　处：《湖南农业科学》2013年第12期21-23,26,共4页Hunan Agricultural Sciences

基　　金：水利部科技推广项目(TG1206)

摘　　要：通过杂交早、中、晚稻各两个品种的田间试验,对比研究了浅控结合灌溉技术和常规灌溉方式对水稻产量及其主要农艺和经济性状的影响。结果表明:与常规灌溉方式相比,采用浅控结合灌溉方式达到节水目的同时,可显著(P<0.05)提高水稻的籽粒产量,其中杂交早、中、晚稻分别提高6.08%、14.30%和5.20%,以对一季杂交中稻的增产作用为最大;浅控结合灌溉方式可不同程度地增加杂交早稻、杂交晚稻和一季杂交中稻的有效穗数、穗总粒数、千粒重、株高、穗长、穗穗实粒数以及结实率等产量构成因素和单株性状,尤其对总粒数和结实率的增加作用达到显著水平(P<0.05)。Taking two varieties of early rice, two varieties of middle rice and two varieties of late rice as experimental materials, the field experiments had been conducted to comparatively study the influences of shallow and controlling irrigation technology(SCIT) and traditional irrigation method(TIM) on yield and main breeding traits of rice. The results showed that in comparison with TIM, the SCIT not only can save water, but also can increase grain yield of rice significantly(P<0.05); the grain yield of early rice, middle rice and late rice increased by 6.08%, 14.30% and 5.20%, respectively; the most obvious yield-increasing effect showed in treatment of one-season middle rice; the SCIT can increase yield component factors and individual plant traits of early rice, late rice and one-season middle rice with different degrees, in which the increasing effect on total grain number and grain setting rate reached significant level(P<0.05).

关 键 词：杂交稻 浅控结合灌溉技术 籽粒产量 单株性状 

分 类 号：S511[农业科学—作物学]