欢迎来到天天文库
浏览记录
ID:51412847
大小:522.51 KB
页数:4页
时间:2020-03-23
《交替隔沟灌溉对玉米耗水规律及其产量的影响.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、2012年第3期黑龙江水利科技No.3.2O12(第4JD卷)HeilongjiangScienceand3'echnologyofWaterConservancy(TodalNo.40)文章编号:1007—7596(2012)03—0005—04交替隔沟灌溉对玉米耗水规律及其产量的影响何富博,孙爱丽(1.黑龙江农垦现代农业工程设计有限公司,哈尔滨150090;2哈尔滨市水利规划设计研究院有限公司,哈尔滨150030)摘要:针对黑龙江西部风沙土区多风少雨,春旱严重,粮食产量及作物水分利用效率低等实际问题,于2009年在黑龙江省杜蒙县进行了交替隔沟灌溉条件下的玉米耗水规律及其产量的试
2、验研究,为当地节水农业的发展提供必要的理论与技术支撑。试验表明,玉米整个生育期内拔节一抽雄期耗水量最大,日耗水量在抽雄一灌浆期最大。交替隔沟灌溉在适宜的灌水量水平下,产量增加显著。本试验中产量最高时,生育期灌水定额分别为苗期325ITI/hm、拔节期300in/hm、灌浆期400in/hin。各生育期耗水量分别为播种一苗期38.92mm、苗期一拔节91.14mm、拔节一抽穗100.00mm、抽穗一灌浆65.49mm、灌浆一乳熟53.28mm、乳熟一收获33.35mill。关键词:交替隔沟灌溉;生育期;耗水规律;产量;玉米中图分类号:s27文献标识码:BInfluenceonWate
3、rConsumptionLawandMaizeYieldbyAlternativeFurrowIrrigationHEFu—boandSUNAi.1i(1.ModemAgriculturalEngineeringDesignCoLtdofHeilongjiangLandReclamation,Harbin150090,China;2.HarbinCityWaterConservancyPlanning,Design&ResearchInstituteCo.Ltd,Harbin150030,China)Abstract:Inlightofthe~equentwindydays,les
4、srainfallandseverespringdrought,andlowgrainyieldandlowusageforcropwaterinwesternsandyareaofHeilongjiangProvince,inordertosolvetheseproblems,alternativefurrowirrigationexperimentWaSconductedinDumengCountyofHeilongjiangProvince.Thepurposeofthisexperimentistofindthewaterconsumptionlawandtheinflue
5、nceonyield.Theresultsshowedthatthehighestwaterconsumptionwasduringthejointing—tasselingstageandthehighestdailywaterconsumptionWaSduringthetasseling—groutingstage.Theyieldwillincreasesignificantlyattheappropriateirrigationlevelofahemativefurrowirrigation.Whenthehighestyieldisobtained.theirrigat
6、ionquotaSareasfollows:theirrigationquotawas325m/hmattheseedlingstage325m/hm,300m/hmatthejointingstage,400m/hmatthegroutingstage.Waterconsumptionduringeachgrowthperiodwas38.92mmatthestageofsowing-seedling,91.14matthestageofseedling-jointing,100.00mmatthestageofjointing—tasseling,65.49mmatthesta
7、geoftasseling-grouting,53.28mmatthestageofgrouting—milkymaturityand33.35mmatthestageofmilkymaturity—harvesting.Keywords:alternativefurrowirrigation;growthperiod;lawofwaterconsumption;yield;maize国重要的粮食生产基地。但自然条件恶劣,生态环境脆弱,0引言降雨时空分布不均,春季干旱
此文档下载收益归作者所有