Page 185 - 《水资源与水工程学报》2025年第2期
P. 185

!36 "!2 #                         & ' ( ) & * + , -                               Vol.36No.2
               2025 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2025

            DOI:10.11705/j.issn.1672-643X.2025.02.21


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                 FGHIJ:S144;S274   KLMNO:A    KPQJ:1672643X(2025)02018110

                   Effectsofmicrobialfertilizeronsoilhealthandsunflowergrowthin
                                saline -alkalisoilunderwatersavingirrigation

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             XUANXiaobo ,QIAOMingye ,SHIChang ,BAOShanshan ,FENGShuo ,ZHAOWenjing
               (1.YellowRiverEngineeringConsultingCo.,Ltd.,Zhengzhou450003,China;2.KeyLaboratoryofWaterManagementand
                  WaterSecurityforYellowRiverBasin,MinistryofWaterResources(underConstruction),Zhengzhou450003,China)
                 Abstract:Inordertoexploretheeffectofmicrobialfertilizeronsaline-alkalisoilunderwatersavingir
                 rigation ,afieldexperimentonsunflowerswascarriedoutinHetaoIrrigationDistrict.Differentcombina
                 tionofirrigationgradients(0%,10%,20% watersavingcondition) andETSmicrobialfertilizer
                                                                                                  2
                 (ThomasmicrobiotaandPasteurellamicrobiota)applicationgradients(0;3,000;4,500kg/hm)were
                 establishedtoexaminetheimpactofmicrobialfertilizertreatmentsonsoilphysicochemicalproperties ,mi
                 crobialcommunitystructure ,andsunflowergrowthunderdifferentwatersavingirrigationconditions.The
                                                                                               2
                                                             2
                 resultsshowthatfortheapplicationof4 ,500kg/hm solidmicrobialfertilizerand180L/hm liquidmi
                 crobialfertilizer,20% watersavingconditionsignificantlyreducedthesoilbulkdensityandpH,signifi
                 cantlyincreasedthesoilmoisturecontent ,totalporosity,aswellasthecontentsoforganicmatter,total
                 nitrogen ,availablephosphorus,andavailablepotassium (P<0.05),comparedwith0% watersaving
                 condition.Thestem diameterandsunfloweryieldwerealsoimproved(P<0.05);whereasthestem
                 heightanddiscdiametershowednosignificantchange(P>0.05).Proteobacteria,Cyanobacteria,

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