內(nèi)蒙古阿拉善左旗腰壩井灌區(qū)玉米膜下滴灌試驗(yàn)研究.pdf

1、獨(dú)創(chuàng)性聲端本人聲明所星交的論文是我個(gè)人在導(dǎo)卿搬導(dǎo)下進(jìn)雪亍鶼研究工作及取得的研究成集。盡我所知，除了文中特別加以標(biāo)注和致謝的瓣方夕，論文中不包含其他入已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲褥寧夏大學(xué)或其它教育棗￡構(gòu)的學(xué)位或證書面餃恩過的老李料。與我一圊工作的圊志對本研究所傲釣任侮貢獻(xiàn)均黽在論文中侮了明確的說明并表示了落意。研究生簽名：召南時(shí)閱：矽影年∥月多舀關(guān)于論文使用授權(quán)的說明本人完全了怨寧愛大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定，即：學(xué)校

2、存投絳留送交論文的復(fù)印件黎磁盤，允許論文棱瓷閎署玨髏溷，可以采麓影印、縮印或掃描等復(fù)躺手段保存、匯編學(xué)位論文。同意寧夏大學(xué)可以淄不周方式在不同艨體上發(fā)表、傳播學(xué)位論文的全都或部分內(nèi)容。研究生簽名：學(xué)師簽名：為南執(zhí)舷時(shí)闋：7移髟年∥月≯匿時(shí)闋：硼年莎月厶蜀AbstractBycheckexperimentalinvestigationofdrippingirrigationunderplasticfilm，thisthesisistaki

3、ngYaobaIrrigatedAreaasatestsitetotesttheinfluenceofdifferentwaterandfertilizertocom’swaterconsumptionpaaemgrowthdynamic，outputandproductionefficiencyofwaterandfertilizertargetingonthepracticaloutstandingproblemsinthisare

4、ainAlxaLeftBannerofInnerMongolia，suchasthecontinuesdecliningoftheundergroundwaterleverlowefficiencyofirrigationwaterutilizationandwatersupplycontradictionbetweenindustryconsumptionandagriculturalconsumptionFromtheexperim

5、entalinvestigation，thebestwaterandfertilizercombinationhasbeenobtainedandthewatersavingefficiencyanalysishavebeenconducted，whichhasprovidedatheoreticalbasistothehilghefficientwatersavingforlocalstaplecropstemitthelocalcr

6、isisofwaterresourcesThefollowingsarethemainresearchconclusions：(1)Takingcheekexperimentalprinciple，theirrigationnormhasbeendividedintothreegroupbytheirlevel：High，MiddleandLowwitlleachgroupalsobeendividedintothreegroupbyt

7、heirhighmiddleandlowlevelofnitrogenousfertilizerThedropirrigationforopenfieldhasbeensetasthecomparisongrouptostudythewaterdemandpatternforCOrngrowthunderdifferentwaterandfertilizercondition。Thestudyhasshownthatthecritica

8、lperiodofwaterdemandforcornwithdripirrigationunderplasticfilmisbetweenelongationstageandtasselingstageItisintasselingstagethatthewaterdemandisinmaximumcomparedwithallothergrowthstageandinseedingstagethatthewaterdemandisi

9、nminimumIndifferenttreatmentseedingstageandtasselingstage，theaveragevalueofwaterdemandintotalwaterdemandisrespectively1427％and3204％Theorderofaveragedailywaterdeprivationineachgrowthstageis：elongationstagetasselingstagewa

10、terystagematurationstageseedingstage(2)Takingcheckexperimentalprinciple，theirrigationnormhasbeendividedintothreegroupbytheirlevel：High，MiddleandLowwitheachgroupalsobeendividedintothreegroupbytheirhighmiddleandlowlevelofn

11、itrogenousfertilizerThedropirrigationforopenfieldhasbeensetasthecomparisongrouptostudythecomgrowthdynamicalongitsgrowthstageunderdifferentwaterandfertilizerconditionandtofitthefunctionrelationshipbetweencornheight，LAI，dr

12、ymatteraccumulationamountandwater&fertilizerbyanalysiswhichtakingmaximumplantheightmaximumLAIindexmaximum舶shweightandmaximumdryweightindifferenttreatmentasdependentvariablesandtakingirrigationwateramountandfertilizingamo

13、untasindependentvariables(3)Takingcheckexperimentalprinciple，theirrigationnormhasbeendividedintothreegroupbytheirlevel：High，MiddleandLowwitheachgroupalsobeendividedintothreegroupbytheirhighmiddleandlowlevelofnitrogenousf

14、ertilizerThedropirrigationforopenfieldhasbeensetasthecomparisongrouptostudythecornoutputandwaterandfertilizerutilizationratiounderdifferentwaterandfertilizerconditionThefunctionrelationshipbetweenCOrnoutputandwaterandfer