黄腐酸对连作黄瓜生长和土壤理化与生物特性的影响

打开文本图片集

中图分类号：S642.2 文献标志码：A 文章编号：1673-2871（2025）07-087-06

Effects of fulvic acid on the growth， soil physicochemical and biological characteristics of continuous cropping cucumber

SUNJiqing'，ZHUHengda²，GAOChunmei，WANGWeihua4 （1.Qingdaocademfgiclturalienesingdao6andongina;ersticideseicalsouo Qingdao266andongin;onghngAiculturalnualAfisrviceCenterongcheng63andogna; 4.QingdaoAgricultural University，Qingdao2661o9，Shandong，China）

Abstract：Inordertoinvestigatetheeectsofdiffrentconcentrationsoffulvicacidonseedlingbomass，leaf protective enzyme activitysomephysiologicalidicators，soil physicochemicalproperties，andsoilmicrobialquantityofcucumber under continuous cropping.The results showed that fulvic acid at a concentration of 400mg⋅L-1 significantly promoted thegrowth of continuous cropping cucumber seedlings，increased theactivityof superoxide dismutase，peroxidase，and catalase inleaves，increased soluble proteinandchlorophyllcontentin leaves，andreduced malondialdehyde and proline content.Inaddition，treatment withappropriateconcentrationsoffulvicacidsignificantlyincreasedthecontentofalkali-hydrolyzablentrogen，vailablephosphorus，vailablepotassiumandorganicmatter，improvedsoilnzyeactivityincreasedthenumberofbacteriaandactinomyces，and decreased the numberoffungiandFusariumoxysporum inthesoil， in turn relieve continuous cropping obstacles and promoted cucumber seedling growth. In general， 400mg⋅L-1 fulvic acid had the best effect in relieving continuous cropping obstacles of cucumber.

Key Words： Cucumber; Continuous cropping obstacle; Fulvic acid; Soil property

黄瓜（CucumissativusL.）在我国栽培面积大、经济效益高，已成为设施栽培的主要瓜类蔬菜之一。（剩余8324字）