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1、施氮和耕作方式對紅麻福紅992農(nóng)藝性狀和產(chǎn)量的影響-農(nóng)學(xué)論文施氮和耕作方式對紅麻福紅992農(nóng)藝性狀和產(chǎn)量的影響宋巖1,王道波1,劉永賢2(1.北京航空航天大學(xué)北海學(xué)院,廣西北海536001;2.廣西農(nóng)業(yè)科學(xué)院,南寧530007)摘要:以紅麻(HibiscuscannabinusL.)的常規(guī)栽培品種福紅992為例,探討不同施氮和耕作方式對紅麻生長發(fā)育和產(chǎn)量形成的影響,為紅麻高產(chǎn)高效栽培提供合理的施肥和耕作依據(jù)。通過大田試驗,研究了施氮和耕作方式對福紅992農(nóng)藝性狀和干物質(zhì)積累的影響,試驗設(shè)3種耕作方式,即免耕、壟耕和深松耕(粉壟);3種施氮
2、方式,即T1(20%作基肥,80%作追肥),T2(40%作基肥,60%作追肥)和T3(60%作基肥,40%作追肥)。結(jié)果表明,與免耕相比,深松耕的生麻產(chǎn)量、種子產(chǎn)量和地上部干質(zhì)量分別增加15.1%、14.9%和14.5%,差異顯著;與T1相比,T2生麻產(chǎn)量、種子產(chǎn)量和地上部干質(zhì)量分別增加9.9%、30.3%和15.1%,差異顯著;免耕和壟耕時,T2株高、皮厚、莖粗和生麻產(chǎn)量、種子產(chǎn)量、地上部干質(zhì)量均達到最大值;深松耕時,T1株高、皮厚、莖粗和生麻產(chǎn)量、種子產(chǎn)量、地上部干質(zhì)量均達到最大值。研究表明,深松耕T1時,生麻產(chǎn)量和種子產(chǎn)量同時達到最
3、高。關(guān)鍵詞:紅麻(HibiscuscannabinusL.);耕作方式;施氮方式;生麻產(chǎn)量;種子產(chǎn)量;農(nóng)藝性狀中圖分類號:S563.5文獻標(biāo)識碼:A文章編號:0439-8114(2015)01-0070-03DOI:10.14088/j.cnki.issn0439-8114.2015.01.017EffectsofNitrogenApplicationandTillageMethodsonAgronomicTraitsandYieldofKenafFuhong992SONGYan1,WANGDao-bo1,LIUYong-xian2(1.
4、BeihaiCollegeofBeihangUniversity,Beihai536001,Guangxi,China;2.GuangxiAcademyofAgriculturalSciences,Nanning530007,China)Abstract:Toprovidereasonablebasisforcultivationofkenaf(HibiscuscannabinusL.)withhighyield,Fuhong992wasusedtostudytheeffectsofdifferenttillagemethodsandfe
5、rtilizationmethods.Threetillagemethodsincludingnotillage,ridgetillageandsub-soilingtillage(Fenlong)andthreefertilizationmodesincluding,i.e.T1(20%Nfertilizersasbasalfertilizerand80%Nfertilizersastopdressing),T2(40%Nfertilizersasbasalfertilizerand60%Nfertilizersastopdressin
6、g),T3(60%Nfertilizersasbasalfertilizerand40%Nfertilizersastopdressing)wereconducted.Theresultsshowedthatcomparedwithnotillage,sub-soilingtillageincreasedfiberyield,seedyieldandshootdrymassofFuhong992by15.1%,14.9%and14.5%.ComparedwithT1,T2increasedfiberyield,seedyieldandsh
7、ootdrymassofFuhong992by9.9%,30.3%and15.1%.Innotillageandridgetillage,plantheight,stemdiameter,thickness,fiberyield,seedyield,shootdrymassreachedthemaximumwithT2.Insub-soilingtillage,plantheight,stemdiameter,thickness,fiberyield,seedyield,shootdrymassreachedthemaximumwithT
8、1.Fiberyieldandseedyieldreachedthemaximumatsub-soilingtillagewithT1.Keywords:kenaf(Hibiscuscanna