巨菌草/首蓿间作下不同改良剂对煤矸石堆土壤性质的影响及植物生长生理响应

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中图分类号：S516 文献标志码：A 文章编号：2095-6819（2025）05-1342-12 doi：10.13254/j.jare.2024.0540

Effectsof different amendments on soil properties and physiological responses of plant growth under Pennisetum giganteum/Medicago sativa intercropping

LI Yangli，PANG Long²，HE Chengzhong²，LI Ying1，ZHAN Fangdong'，SONG Lin2* ，LI B01*

（1.SchoolofRsoucsdEiontagiculualUesityugina;2.ingGalurfal

Resources Center， China Geological Survey， Kunming 650111， China）

Abstract：Theefectsofdiferentamendmentsonphysicochemicalpropertiesandplantgrowthanddevelopmentofcoalgngeunderte intercroppingconditionsofPeisemgiganteum/Medicagosatiawerestuded.Organicfertilizer，fungusresidueandcowmaurewee applied，andtechangesofsoilpysicalandchmicalpropertiesofoalganguepilesandthegrowthnddevelopmentstatesofthetwo plantswerecomparedwthdiferentamendmetsanddiferentplantigmodes，soatacieveteologicalrestorationofoalgange wasteland.TheapplicationoforganicfertliercouldsignificantlyincreasethecontentofvailablenutrientsandCECinthcoalgangue pilesoil.Theresultsshowdthatteavailablephosphorscontentofoalanguehapassignificantlyighertantatoftertratent groupsafter organic fertilizer application，and the content of alfalfa was significantly increased by 574.13% and 658.35% under the mono and intercropping modes of P ：giganteum，and 1 323.37% and 844.84% under the mono and intercropping modes of Medicago sativa. The applicationoffungussueadsifantftoplantomassandteomassoftetoantsuderinteroppingodosas higher than that of monoculture，which was 218.13g and 3.93g ，respectively.The plant heights of P .giganteum and Medicago sativa were higherthathoseofmonoculture，hichwere92.57cmand20.81cm，respectively，hichwere1.84timesand2.02timesthatofCK.The chlorophyllontentoftetoplantsassignificantlyincreasedaftertheaplicationofcowung，whichshowedthatitercoingwas beterthanmoocoppingUnderintercroppingcoditions，techlorophyllaontentsofthetwoplantsere0.2Og·nd1.3mg g-1 which were significantly increased by 122.22% and 67.09% respectively，compared with CK.The application of organic fertilizer under intercroppngcansignificantlyincreasethecontentofavailablenutrients incoalganguepilesandincreaseplantheightandbioass.The application of cow dung can increase the chlorophyll content of both plants to a certain extent.

KeyWords：coal gangue; modifier; Pennisetum giganteum Z.X.Lin; Medicago sativa;soil property; physiologicalresponse

煤矸石是一种在煤炭开采、洗选及加工过程中排放的固体废弃物，是我国排放量最大的工业固体废弃物。（剩余19153字）