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时间:2017-12-07
《不同灌溉施肥方式对春玉米产量和水分生产效率影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国麈c亟搪2013,29(36):224—227ChineseAgriculturalScienceBulletin不同灌溉施肥方式对春玉米产量和水分生产效率影响周继华,贾松涛(’北京市农业技术推广站,北京100029;通州区农业技术推广站,北京101100)摘要:为明确不同灌溉施肥方式在春玉米上的应用效果,以‘郑单958’玉米品种为试材,设置了4种灌溉施肥方式(雨养玉米、常规灌溉施肥、滴灌施肥、l/2滴灌施肥),研究其对春玉米株高、茎粗、根系、产量及水分生产效率的影响。结果表明:在一定自然降雨条件下,滴灌施肥方式可明显促进根系生长发育,对玉米前期的地上部生长发育有较大作用;施肥总
2、量一致的前提下,采用滴灌施肥有利于保障玉米的有效成穗,增加穗粒数,从而提高产量。生育期灌水675rn/hm的滴灌施肥模式,较常规灌溉施肥方式节省灌水50%前提下,产量达ll310kg/hm2,提高420k;水分生产效率2.2kg/m3,提高0.26kg/m3。因此,滴灌施肥技术在春玉米上具有较好的应用效果,可在有条件的地方大面积示范推广。关键词:春玉米;滴灌施肥;产量;水分生产效率中图分类号:$365,$274.1文献标志码:A论文编号:2013—0245EfectsofDiferentIrrigationandFertilizationMethodsonYieldandWaterU
3、seEficiencyofSpringCornZhouJihua,JiaSongtao(BeifingAgriculturalTechnologyExtensionStation,Beijing100029;TongzhouCountyAgriculturalTechnologyExtensionStationofBeijing,Beijing101100)Abstract:InordertomakecleartheapplicationeffectsofdifferentmethodsofirrigationandfertilizationonspringCO1TI,‘Zhengd
4、an958’wasusedastheplantmaterial。andeffectsoffourdifferentmethodsofirrigationandfertilization(Rain—fed;Conventionalirrigationandfertilization;dripirrigationandfertilizationand112dripirrigationandfertilization)onplantheight,root,yieldandwateruseeficiencyof‘Zhengdan958’werestudied.Theresultsindica
5、tedthat:undertheconditionofnaturalrainfall,dripirrigationandfertilizationcouldsignificantlypromoterootgrowthanddevelopment,andalsohadagreaterimpactontheabove—groundgrowthof‘Zhengdan958’atitsearlygrowthstage.Underthesamefertilizationamount,dripirrigationandfertilizationwouldbemorehelpfultoincrea
6、sethenumberofearsandgrainnumberperspike,resultingintheincreaseofgrainyield.Undertheamountofirrigation(675m/hm2)usingdripirrigationandfertilization,halfamountofwaterwassavedcomparedwithconventionalmethodofirrigationandfertilization;yieldachieved11310kg/hm,withtheincreasingamountof420kg/hmandwate
7、ruseeficiencyachieved2.2kg/m,withtheincreasingamountof0.26kg/m.Therefore.thetechniqueofdripirrigationandfertilizationhasabetterapplicationprospectsonspringcorncultivation.Andthistechniquecouldbefurtherpromotedunderpermittedconditi
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