Page 212 - 《水资源与水工程学报》2023年第3期
P. 212

!34 " ! 3 #                       & ' ( ) & * + , -                               Vol.34No.3
               2023 $ 6 %               JournalofWaterResources&WaterEngineering                 Jun.,2023

            DOI:10.11705/j.issn.1672-643X.2023.03.26


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                 ABCDE:S275;TV93   FGHIJ:A    FKLE:1672643X(2023)03020807

                               Effectsofdeepstorageirrigationongrainfilling
                                        andgrowthyieldofwinterwheat

                 ZHAQing,WANGFang,CHENDianyu,PANGYaoyue,SUNJun,MAYuxin,HUXiaotao
                    (KeyLaboratoryofAgriculturalSoilandWaterEngineeringinAridandSemiaridAreas,MinistryofEducation,
                                         NorthwestA&FUniversity,Yangling712100,China)
                 Abstract:Deepstorageirrigationcangivefullplaytotheroleofsoilreservoir,itcanalsoturnthefarm
                 landintoagroundwaterrechargeareatoincreasetheutilizationofrainfallresources.Here ,Xiaoyan22
                 wasusedasthetestvariety ,fivedeepwaterstoragedepthsof80cm(D80),120cm(D120),140cm
                 (D140),160cm(D160)and180cm(D180)weresetupandrainfed(CK)wasusedasthecontrolto
                 analyzetheeffectsofdifferenttreatmentsondrymatteraccumulationdistribution,yieldandgrainfilling
                 processofwinterwheat.Theresultsshowedthatthetreatmentsincreasedtheyieldby8.9% (D80),
                24.7% (D120),31.0% (D140),17.9% (D160)and9.9% (D180),respectively,comparedwith
                 CK.Moreover,deepstorageirrigationincreasedthedistributionandproportionofseedsindrymatter,a
                 mongwhichtheproportionofseedsinD140increasedby2.46% comparedwithCK.TheLogisticequa
                 tionwassuitableforthefittingofthegrainfillingprocessofwinterwheatatdifferentdepthsofdeepwater
                 storage ,andthecoefficientsofdeterminationofthefittedequationswereallgreaterthan0.99.Inaddi
                 tion ,thedeepwaterstoragetreatmentsincreasedtheaveragefillingrateandextendedthemaximumfill
                 ingrateby1.65-3.32dcomparedwiththecontrol.Therefore,deepstorageirrigationhasapositive
                 effectongrainfillingandyieldcompositionofwinterwheat.Thisstudycanprovideareferenceforthe
                 fulfillmentofmakingfulluseofrainfallresourcestoimprovegroundwaterenvironmentandtheachieve
                 mentofhighcropyield.
                 Keywords:winterwheat;deepstorageirrigation;grainfilling;yield;Logisticmodel


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