[精品]蒜棉套作高产高效栽培技术优化模型

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1、蒜棉套作高产高效栽培技术优化模型蒜棉套作高产高效栽培技术优化模型摘要：为了探讨移栽期､；移栽密度､；追肥量､；化控量和叶面喷肥量等5项栽培因子对淼棉套作模式下棉花皮棉产量的影响，并进一步优化各栽培因子，采用五元二次正交旋转组合设计，建立了淼棉套作模式下棉花皮棉产量优化数学模型｡；结果表明，各因索对蒜棉套作模式下棉花皮棉产量的影响由大到小依次为移栽密度､；化控量､；追肥量､；叶面喷肥量和移栽期｡；移栽期与叶面喷肥量､；移栽密度与追肥量､；移栽密度与化控量之间的互

2、作效应达到显著水平，生产中应注意协调｡；频数分析结果表明，蒜棉套作模式下棉花皮棉产量大于1900kg/hm2的优化栽培措施为5月5~7日移栽，移栽密度3.53万〜3.68万株/hm2,追施纯N150.84〜163.80kg/hm2,追施K2075.42-81.90kg/hm2,化控量(25%助壮素)533.71〜580.07mL/hm2,叶面喷肥量(磷酸二氢钾)12.78—14.37kg/hm2｡；关键词：蒜棉套作；高产；农艺措施；数学模型；优化方案中图分类号：S344.3；S318；S562文献标识码：A文章编号：0439-8114(2014)10-2

3、244-03OptimizingModelofHigh-yieldandHigh-efficiencyCultivationTechniquesofRelayingCottoninGarlicLIUWei~xing,MIAOYou-shun,HEQunTing,ZHANGFeng-ye,LIUShui-xian(ShangqiuAcademyofAgricultureandForestrySciences,Shangqiu476000,Henan,China)Abstract：Tooptimizefactorsaffectingrelayingcottoningarlic,5m

4、ainfactorsincludingtransplantingdate,transplantingdensity,fertilizingquantity,chemicalregulation,andfoliarfertilizationwerestudiedusingquadraticregressionorthogonalrotationalcombiningdesign.Amathematicalregressionmodelforlintyieldwasestablished.Theresultsshowedthattheorderoftheinfluencefromt

5、hestrongesttotheweakestwastransplantingdensity,chemicalregulation,fertilizingquantity,foliarfertilizationandtransplantingdate・Transplantingdateandfoliarfertilization,transplantingdensityandfertilizingquantity,transplantingdensityandchemicalregulationhadsignificanteffectsonlintyield・Thefiveag

6、ronomicmeasuresshouldbecoordinatedeffectively.Frequencyanalysisshowedthatlintyieldofmorethan1900kg/hm2couldbeachievedwiththeoptimalconditionsincludingtranspla.ntingfromMay5thto7thwithtransplantingdensitybetween3.53and3.68(tenthousandplantsperhectare),purenitrogenbetween150.84and163.80kg/hm2,

7、burntpotashbetween75.42and81.90kgperhectare,chemicalregulationbetween533・71and580.07mL/hm2andfoliarfertilizationbetween12.78and14.37kg/hm2.Keywords：relayingcottoningarlic；highyield；agronomicmeasure；mathematicalmodel；optimizedprogram基金项冃:河南省现代农业产业技术