安徽农学通报2023年02期动植物·微生物·食用菌·中药材菌棒生物炭对电解锰渣上甜象草生长及Mn吸收的影响曹俪壤罗洋*何龙丽段紫嫣高丽文（贵州师范学院地理与资源学院，贵州贵阳550018）摘要以电解锰渣为供试基质，以甜象草为供试植物，采用盆栽试验，探讨添加不同用量菌棒生物炭对电解锰渣上甜象草生长及Mn吸收的影响。结果表明，添加菌棒生物炭促进了甜象草的萌发，其出苗率从大到小依次为T2（生物炭添加量为5%）>T3（生物炭添加量为7.50%）>T1（生物炭添加量为2.50%）>CK（不添加生物炭）。添加菌棒生物炭还使甜象草的株高和鲜重分别较对照增加了4.06%~30.14%和15.38%~74.73%，其中以施用量为5.00%处理组的增幅最大。同时，施用菌棒生物炭还增加了甜象草的叶绿素含量，降低了其叶片丙二醛含量。添加2.50%、5.00%和7.50%的菌棒生物炭还使甜象草地上部Mn含量较对照分别降低了23.41%、32.23%和40.36%。研究成果可为废弃菌棒和电解锰渣的资源化利用以及电解锰渣堆放区的生态恢复提供参考。关键词菌棒生物炭；甜象草；电解锰渣中图分类号X53文献标识码A文章编号1007-7731（2023）02-0029-05EffectsofBacterialRodBiocharontheGrowthandMnAbsorptionofPennisetumpurpureumonElectrolyticManganeseResidueCAOLirangLUOYang*HELongliDUANZiyanGAOLiwen（SchoolofGeographyandResources,GuizhouEducationUniversity,GuiyangGuizhou550018）AbstractUsingelectrolyticmanganeseresidueasthetestsubstrateandPennisetumpurpureumasthetestplant,apotexperimentwasconductedtoexploretheeffectsofaddingdifferentamountsofbacterialrodbiocharonthegrowthandMnabsorptionofPennisetumpurpureumonelectrolyticmanganeseresidue.Theresultsshowedthattheadditionofbacterialrodbiocharpromotedthegerminationofsweetweevil,andtheorderofseedlingemergenceratewasT2(biocharadditionwas5%)>T3(biocharadditionwas7.5%)>T1(biocharadditionwas2.5%)>CK(nobiocharaddition).TheplantheightandfreshweightofPennisetumpurpureumincreasedby4.06%~30.14%and15.38%~74.73%respectivelycomparedwiththecontrol,andtheincreasewasthelargestinthetreatmentgroupwiththeapplicationrateof5%.Atthesametime,theapplicationofbacterialstickbiocharalsoincreasedthechlorophyllcontentofPennisetumpurpureumanddecreasedthemalondialdehydecontentofitsleaves.Inaddition...
