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:1672643X(2023)03020807
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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