Page 220 - 《水资源与水工程学报》2023年第1期
P. 220
!34 " ! 1 # & ' ( ) & * + , - Vol.34No.1
2023 $ 2 % JournalofWaterResources&WaterEngineering Feb.,2023
DOI:10.11705/j.issn.1672-643X.2023.01.26
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FGHIJ:S626.2;S565.5 KLMNO:A KPQJ:1672643X(2023)01021609
Effectsofmulchingwithcrushedwheatstrawpaddingandplasticfilm on
sunfloweryieldandsoilenzymeactivitiesinMinqinOasis
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DULiangliang,ZHANGJinxia,RENFangfang,WUQing’an,LIUXingrong,DINGLin,ZHAOXia
(1.CollegeofWaterConservancyandHydropowerEngineering,GansuAgriculturalUniversity,Lanzhou730070,China;
2.GeologicalHazardsPreventionInstitute,GansuAcademyofSciences,Lanzhou730000,China;
3.GansuResearchInstituteofWaterConservancy,Lanzhou730000,China)
Abstract:Inordertosolvetheproblemsofwaterresourcesshortage,deterioratedcultivatedsoilandpoor
yieldofsunflowerinMinqinOasisIrrigationArea,fivetreatmentsweresetup,includingnomulching
2
(CK),strawmulching(S)(strawamountwas4,500kg/hm ),plasticfilmmulching(F),crushed
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wheatstrawpaddingandplasticfilmmulching(SF)(strawamountwas4,000kg/hm )andcrushed
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wheatstrawandplasticfilmmulching (SF)(strawamountwas4,500kg/hm).Withthegeneralirri
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gationleveladoptedbythelocalfarmers (750m /hm)astheirrigationquota,thegrowthstatusofsun
flowerandthechangesofsoilenzymeactivitywerestudied.TheresultsshowedthatunderSF treatment,
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thesoilthermalconditionwassignificantlyimproved,whichwasbeneficialforwaterstorageinsoiland
providedmorewaterforthesunflowergrowth.TheseedlingrateofSF was12.1% higherthanthatof
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CK(P <0.05),and9.7% higherthanthatofS(P <0.05).TheyieldofSF reached4,780.95
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