溶磷菌对番茄幼苗生长及土壤磷素的影响

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中图分类号：S641.2 文献标志码：A 文章编号：1672-2043（2025）12-3181-09 doi：10.11654/jaes.2024-1110

Effects of phosphorus-solubilizing bacteria on tomato seedling growth and soil phosphorus availabilit

HUANG Haizhou'，LUO Dan"，CHEN Jixiang1，WANG Tianfeng'，ZHANG Qingfang1，WANGYonggang² （1.CollgeofetroicalEgeg，ouUvsityofhlogzouOina;hlofifeic Engineering，Lanzhou University of Technology，Lanzhou 73Oo5o，China）

Abstract：ApotexperimentwasconuctedtoivestigateteectsofphosphorssolubilizinbacteriaAcinetobacterbuman（6）nd Burholderiacepacia（Z7）ontomatosedlinggrowthparameters，rhizospheresoilphysicochemicalproperties，enzymeactivityand microbialcommunitydiversityTheresultsshowedthattheapplicationofposphorus-solubilizingbacteriasignificantlypromotedthe increase in plant height and stem diameter of tomato seedlings，with the combined strain（ B6+ Z7）exhibiting the best effect， increasing plant height and stem diameter by 6.36% and 12.35% ，respectively.In addition，phosphorus-solubilizing bacteria treatment significantly enhanced peroxidase（POD）activityandsolublesugarcontentintomatoleaves whilereducingmalondialdehyde（MDA）content，indicating improvedstressrsistanceintomatosedling.Intesofsoilpropeties，teombiedstraintreatmentsignificantlyincasdtotal phosphorus content（by 4.35% ），available phosphorus content（by 10.58% ），and phosphatase activity（by 5.26% ）in the soil. Moreover，the applicatioofposphoussolubilgbcteriasignificantlycreadthSimpsonindexofzospresoilbacteria，dicatingncd microbialdiversityandledtoahigherrelativeabundanceofProteobacteria，Acidobacteriota，andBacteroidota.

KeyWords：phosphorus-solubilizing bacteria; tomato;rhizosphere soil; physical and chemicalproperties; microbial

番茄作为一种全球广泛栽培与消费的蔬果，在全球农业经济中占据着重要的地位[。（剩余15696字）