膨潤土與生物炭配施對風(fēng)沙土壤磷相關(guān)酶活性及供磷能力的影響

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中圖分類號X171文獻(xiàn)標(biāo)識碼A

文章編號 0517-6611（2025）11-0137-06

doi：10.3969/j. issn. 0517-6611.2025.11. 030

開放科學(xué)（資源服務(wù)）標(biāo)識碼（OSID）：

Efects of Combined Aplicationof Bentoniteand Biochar onPhosphorus-related Enzyme Activities and Phosphorus Suply Capacity of Sandy Soil

LONG Qing，ZHAO Xue-song，WANGLi-ngetal（CollgeofEnvromentalcienceandEnginering，LiaoningTchcalUnvesiy， Fuxin，Liaoning ）

AbstractThispapersudedtefectsofentoiteandoarwitdiereonolitecontentsonteactivityofposposelated enzmes，pospousalabilitlantpospousbsorptiondplntoassindndsilatftpropoos.elssd thatthecombinedaplicatiooftetwoouldsignificantlyincreasesoilposphorus-relatedeeactivityadpospousavalabilityas wellasplantpspusabsotionandplntdryeight，andtereasasignificantiteractionbtweenmonoloiteontentadicr application amount. The best effct was achieved when the montmorilonite content in bentonite was 83.5% and the biochar application amount was 1200kg/hm2 .Redundancyanalysis showed that organic carbon was the most important factor afecting plant phosphorusabsorption，and thecoelaionetwnactivityandsolproprisastestrongestTestructuraluationodelshoedtatteiceaseialie phosphataseactivityselatedtoochar，teicreaseiacidpospataseactivityasrelatedtobentoitendteicreaseintaseand phosphodiesteraseactieswasrelatedtoothbiochaandbentonite;HYandALPadsignificantposiefetsonavalablepospos contentandplantposporusabsorptio.Tesersultsshowedthatthecombinedaplicatioofbentoiteandbocharcouldimprovoilpos phorussupplycapacitybyincreasingALPandPYactivitiesinsandysoil，withbiocarmakingtegeatestcontributionReasoablesel tionof the montmorilloitecontentand biocharapplicationamount in bentonitecould more efectivelyincreaseplantbiomass.

Keywordseolasandsoil;entoiteocharapplicatio;ospous-elatedeeactivityospousabsorptio;osoail bility

磷是植物生長不可或缺的養(yǎng)分，也是農(nóng)業(yè)生產(chǎn)中最重要的養(yǎng)分限制因子[1]。（剩余10799字）