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《氮肥運(yùn)籌對(duì)機(jī)插雜交中秈水稻群體質(zhì)量及產(chǎn)量形成的影響》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、安徽農(nóng)業(yè)大學(xué)學(xué)報(bào),2011,38(1):1-5JournalofAnhuiAgriculturalUniversity[DOI]CNKI:34－1162/S.20110107.1518.010氮肥運(yùn)籌對(duì)機(jī)插雜交中秈水稻群體質(zhì)量及產(chǎn)量形成的影響11,2313吳文革，張玉海，張健美，許有尊，何超波，4444李霞紅，徐長(zhǎng)斌，李福軍，陳學(xué)英(1.安徽省農(nóng)科院水稻所,合肥230031;2.安徽農(nóng)業(yè)大學(xué)農(nóng)學(xué)院,合肥230036;3.安徽省農(nóng)機(jī)推廣總站,合肥230061;4.天長(zhǎng)市農(nóng)業(yè)科技中心,天長(zhǎng)239300)摘要：在實(shí)地機(jī)插田間小區(qū)試驗(yàn)(非人工模擬)條件下，比較研究了3種施氮水平組合2種穗肥比例共
2、6種氮-2肥運(yùn)籌對(duì)雜交中秈水稻機(jī)插群體主要群體質(zhì)量指標(biāo)以及產(chǎn)量形成的影響。結(jié)果表明，210kg·hm的施氮量,配合基蘗肥∶穗肥為6∶4的運(yùn)籌方式有利于群體莖蘗平緩消長(zhǎng)，減小無效分蘗，提高成穗率，協(xié)調(diào)群個(gè)體矛盾，提高中、后期的葉面積指數(shù)和干物質(zhì)積累，優(yōu)化群體質(zhì)量；同時(shí)有利于培育大穗，并穩(wěn)定提高結(jié)實(shí)率和千粒重，協(xié)調(diào)產(chǎn)量構(gòu)成因素而高產(chǎn)；是安徽江淮雜交中秈水稻機(jī)插豐產(chǎn)高效栽培的推薦施氮模式。關(guān)鍵詞：雜交中秈水稻；機(jī)插栽培；氮肥；群體質(zhì)量；產(chǎn)量中圖分類號(hào)：S511.21文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1672?352X(2011)01?0001?05Effectsofnitrogenmanagemento
3、nmassqualityandyieldformationofmachinetransplantedmiddle-seasonIndicahybridrice11,2313WUWen-ge,ZHANGYu-hai,ZHANGJian-mei,XUYou-zun,HEChao-bo,4444LIXia-hong,XUChang-bin,LIFu-jun,CHENXue-ying(1.InstituteofRiceScience,AnhuiAgricultureAcademy,Hefei230031;2.SchoolofAgronomy,AnhuiAgriculturalUniversity
4、,Hefei230006;3.AnhuiAgriculturalMachineryTechnologyExtensionStation,Hefei230061;4.AgriculturalTechnologyServiceStationofTianchangcityofAnhuiProvince,Tianchang239300)Abstract:Asplitplotexperimentinthefieldswasconductedtostudytheeffectsofdifferentfertilizer-Nmanagementsonqualityindexofmachinetransp
5、lantedmiddle-seasonIndicahybridrice.Thenitrogenwasap--2pliedinthreelevelsandpaniclefertilizerwasintworatios.Theresultsshowedthattheschemeof210kg·hmNapplicationrateandtheratioofbasic-tilleringtopanicleandgrainfertilizerbeing6∶4washelpfulindecreasingthepopulationofstemsandtillersgently,decreasingth
6、enumberoftheinefficienttiller,increasingeffectivespikenumberperplant,andcoordinatingcontradictionbetweenindividualandpopulation.Moreover,itimprovedleafareaindex(LAI)，increasedtheaccumulationofdrymatterandoptimizedthepopulationqualityatthemiddleandlategrowthstage.Thisfertilizer-Nmanagementwasbenef
7、icialtocultivatebigspike,toenhanceseedsettingrateand1000-grainweighstably,toharmonizeyieldcomposingfactorsandthehighestgrainyield,whichwasthehighefficientcultivatedtechniqueofmachinetransplantedmiddle-seasonIndicahybri
