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:1672643X(2025)02018110
Effectsofmicrobialfertilizeronsoilhealthandsunflowergrowthin
saline -alkalisoilunderwatersavingirrigation
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XUANXiaobo ,QIAOMingye ,SHIChang ,BAOShanshan ,FENGShuo ,ZHAOWenjing
(1.YellowRiverEngineeringConsultingCo.,Ltd.,Zhengzhou450003,China;2.KeyLaboratoryofWaterManagementand
WaterSecurityforYellowRiverBasin,MinistryofWaterResources(underConstruction),Zhengzhou450003,China)
Abstract:Inordertoexploretheeffectofmicrobialfertilizeronsaline-alkalisoilunderwatersavingir
rigation ,afieldexperimentonsunflowerswascarriedoutinHetaoIrrigationDistrict.Differentcombina
tionofirrigationgradients(0%,10%,20% watersavingcondition) andETSmicrobialfertilizer
2
(ThomasmicrobiotaandPasteurellamicrobiota)applicationgradients(0;3,000;4,500kg/hm)were
establishedtoexaminetheimpactofmicrobialfertilizertreatmentsonsoilphysicochemicalproperties ,mi
crobialcommunitystructure ,andsunflowergrowthunderdifferentwatersavingirrigationconditions.The
2
2
resultsshowthatfortheapplicationof4 ,500kg/hm solidmicrobialfertilizerand180L/hm liquidmi
crobialfertilizer,20% watersavingconditionsignificantlyreducedthesoilbulkdensityandpH,signifi
cantlyincreasedthesoilmoisturecontent ,totalporosity,aswellasthecontentsoforganicmatter,total
nitrogen ,availablephosphorus,andavailablepotassium (P<0.05),comparedwith0% watersaving
condition.Thestem diameterandsunfloweryieldwerealsoimproved(P<0.05);whereasthestem
heightanddiscdiametershowednosignificantchange(P>0.05).Proteobacteria,Cyanobacteria,
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