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1、2011年第25卷第4期作物研究304不同灌溉方式对水稻生长及产量的影响傅志强1,2，黄 璜1,2，朱华武1，陈 灿1(1湖南农业大学农学院，长沙410128；2农业部多熟制作物栽培与耕作重点开放实验室，湖南长沙410128)摘要：为建立湘南双季稻区节水灌溉栽培模式提供依据，设置了不同灌溉方式对水稻生长发育的影响试验。试验结果表明：不同灌溉方式在水稻生长、干物质积累、生理特性以及产量上都存在显著差异。4种灌溉方式下水稻生长与产量表现以浅水灌溉最优，受旱灌溉最差,与受旱灌溉比，浅水灌溉株高、分蘖数、光合速率均有提高，结实率提
2、高了41.5%，千粒重增加了1.6g，产量增加了15.8g/盆；浅水灌溉下水稻产量、灌溉用水利用率分别比深水灌溉高出7.6g/盆和0.69kg/m3。间歇灌溉产量与深水灌溉差异很小，但间歇灌溉水分利用率高出深水灌溉0.44kg/m3。因此，在湘南双季稻区，针对季节性干旱的特点，采用浅水灌溉方式有利于晚稻高产稳产，间歇灌溉有利于晚稻种植。关键词：水稻；栽培；水分管理；灌溉方式中图分类号：S511；S363 文献标识码：A文章编号：1001-5280(2011)04-0299-05 DOI：10.3969/j.issn
3、.1001-5280.2011.04.01EffectsofDifferentIrrigationMethodsonPaddyRiceGrowthandYieldsFUZhi-qiang1,2,HUANGHuang1,2,ZHUHua-wu1,CHENCan1(1CollegeofAgronomy,HunanAgriculturalUniversity,Changsha,Hunan410128,China;2KeyLaboratoryofMinistryofAgricultureforMulti-croppingCulti
4、vationandFarmingSystem,Changsha,Hunan410128,China)Abstracts:Thericegrowthandyieldsunderfourdifferentirrigationmethodswerestudied.Theresultsshowedthatdifferentirrigationmethodhadsignificantlydifferentimpactonthericegrowth,physiologicalcharacteristics,thedrymatterac
5、cumulationandtheproduction.Theshallowirrigationwastheoptionalmethodforricegrowthandyieldscomparedwithotherirrigationmethods,andthedryirrigationmethodwastheworst.Comparedwiththedryirrigationmethod,plantheight,thetillernumberandphotosyntheticrateundertheshallowirrig
6、ationmethodallrose,andtheseedsettingaddedby41.5%,1000-grainweightincreasedby1.6g,andtheoutputincreasedby15.8g/potsignificantly.Comparedwiththedeepwaterirrigationmethod,theyieldandtheirrigationefficiencyoftheshallowirrigationincreasedby7.6g/potand0.69kg/m3,respecti
7、vely.Theyieldoftheintermittentirrigationwasequaltothatunderthedeepfloodingirrigation,buttheirrigationefficiencywas0.44kg/m3higherthanthatofthedeepfloodingirrigation.Therefore,accordingtothecharacteristicsoftheseasonaldrought,theshallowirrigationmethodwasconducivet
8、othehighyieldofthelatericeandtheintermittentirrigationwashelpfulforthelatericecultureinthesouthofHunanprovince.Keywords:Rice;Cultivation;Watermanagement
