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1、2011年第25卷第4期作物研究304不同灌溉方式對水稻生長及產(chǎn)量的影響傅志強1,2，黃 璜1,2，朱華武1，陳 燦1(1湖南農(nóng)業(yè)大學農(nóng)學院，長沙410128；2農(nóng)業(yè)部多熟制作物栽培與耕作重點開放實驗室，湖南長沙410128)摘要：為建立湘南雙季稻區(qū)節(jié)水灌溉栽培模式提供依據(jù)，設置了不同灌溉方式對水稻生長發(fā)育的影響試驗。試驗結果表明：不同灌溉方式在水稻生長、干物質(zhì)積累、生理特性以及產(chǎn)量上都存在顯著差異。4種灌溉方式下水稻生長與產(chǎn)量表現(xiàn)以淺水灌溉最優(yōu)，受旱灌溉最差,與受旱灌溉比，淺水灌溉株高、分蘗數(shù)、光合速率均有提高，結實率提
2、高了41.5%，千粒重增加了1.6g，產(chǎn)量增加了15.8g/盆；淺水灌溉下水稻產(chǎn)量、灌溉用水利用率分別比深水灌溉高出7.6g/盆和0.69kg/m3。間歇灌溉產(chǎn)量與深水灌溉差異很小，但間歇灌溉水分利用率高出深水灌溉0.44kg/m3。因此，在湘南雙季稻區(qū)，針對季節(jié)性干旱的特點，采用淺水灌溉方式有利于晚稻高產(chǎn)穩(wěn)產(chǎn)，間歇灌溉有利于晚稻種植。關鍵詞：水稻；栽培；水分管理；灌溉方式中圖分類號：S511；S363 文獻標識碼：A文章編號：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
