黃腐酸對(duì)連作黃瓜生長(zhǎng)和土壤理化與生物特性的影響

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中圖分類(lèi)號(hào)：S642.2 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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

黃瓜（CucumissativusL.）在我國(guó)栽培面積大、經(jīng)濟(jì)效益高，已成為設(shè)施栽培的主要瓜類(lèi)蔬菜之一。（剩余8324字）