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《优质稻有机栽培肥料和种植密度试验.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、南方农业学报2011,42(8):926-930JournalofSoutIlemAgriculturehttp://www.nfnyxb.com优质稻有机栽培肥料和种植密度试验陈传华-t-,刘广林t,一,罗群昌-,2.,陈远孟L2,蒋显斌L2,杨海惠3,蒙会球3(1广西农业科学院水稻研究所;2广西水稻遗传改良重点实验室:南宁530007;3象州县农业技术推广站,广西来宾545800)摘要:【目的】在“稻鸭共育”有机稻生产模式基础上,结合广西在优质稻生产优势,探索“猪—鸭一蚯蚓—优质稻”有机稻生产模式,并对该模式下的有机稻栽培技术进行研究,以丰富广
2、西的有机稻生产模式,为广西有机稻生产提供理论依据。【方法】以“桂育4号”为参试品种,采用裂区设计,设3个施肥量(3750、4500、5250k肌a)与3种种植密度(30.0、33.0、37.5万穴/ha),测定株高、有效穗数、每穗粒数、结实率、千粒莺和产量等。【结果】各处理产量都在5.25t/ha以上,最高产量达到6972.0kg/ha。施肥量从3750.0—5250.0kg/ha。种植密度从30.0万~37.5万穴/ha,产量均逐渐增加,早、晚季施肥量为5250.0kg,Ila、种植密度为37.5万穴/Ila的产量最高。【结论】“猪—鸭一蚯蚓—优
3、质稻”有机栽培模式及有机稻栽培技术能获得较高产量,值得推广应用。关键词:优质稻;有机栽培;有机肥;种植密度;产量中图分类号:S511.062文献标识码:A文章编号:2095一1191(2011)08-0926--05OrganicfertilizerandplantingdensityevaluationsfororganicfarmingofhighqualityricefarminghighqualityCHENChuan—hual”,LIUGuang—linl”,LUOQun—chang1’≯,CHENYuan-men91”,JIANGXia
4、n—binl”,YANGHal—hui3,MENGHui-qiu3(1RiceResearchInstitute,GuangxiAcademyofAgricuhuralSciences;2GuangxiRiceGeneticImprovementandBiotechnologyLaboratory:Nanning530007,China;3AgricuhuralTeehnologicMExtensionStationofXiangzhouCounty,Laibin,Guangxi545800,China)Abstract:【Objective]In
5、ordertodeveloporganicfarmingandtoenhanceorganicriceproductioninGuangxi,anewhigllqualityorganicricecultivationtechniquehasbeendevelopedusingorganicmanuremadefrompigexcreta,duckdroppingsandearthworltn$.【Method]Atwofactor(organicmanureandplantingdensity)experimentwasconductedusin
6、gricevarietyGuiyu4todevelopaneworganicricecultivationtechnique.Plantheight,effectivepaniclenumber,grainnumberperspike,seedsettingrate,1000-grainweightandyieldwereinvestigated.【Resuh]AUthetreatmentsrecordedover5.25t/hayield.Theyieldofallthevarietiesfoundtoincreasewithincreasing
7、therateoforganicfertilizerandplantingdensity.Thehighestyield(6.97t/ha)Wasrecordedat5250.0kg,}laorganicfertilizerand37.5millionplants/haplantingdensity.【Conclusions]Thisexperimentclearlyindicatedthatthehigherorganicriceyieldcanbeobtainedbyadoptingthenewor-ganicricecultivationte
8、chnique(pig-duck-earthworm)withrecommendedamountsoforganicfer
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