生物炭联合亚硒酸钠对水稻生理特征及硒隔累积的影响

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中图分类号：S511；X503.231 文献标志码：A 文章编号：1672-2043（2025）12-3053-08 doi：10.11654/jaes.2025-0086

Effects of biochar and sodium selenite combination on physiological characteristics and cadmium selenide accumulation in rice

JIANGYal，WUDaoming，ZHOUKai，WANGLi’，LIUGuihua’，CHAI Guanqun1，FANChengwul* （1.InsituteofSlndFertilie，GuzucademofAgricultualSciences，Guang55O6，Chia;2.GuangRuralevialatio Service Centre，Guiyang 550081，China;3.Kaiyang County SoilandFertilizer Workstation，Guiyang 55030o，China） Abstract：Thisstudywasdesignedtoexaminetheefectsofdiffrent application methodsof biocharandsodiumseleniteoneducing cadmium（Cd）andeichingseleni（Se）inicegras，Quan9ou801，ixiangyou2115andLongiangyouhuazhanwerestudiedbypot experiment.Itwasconductedfourtreatments：noocarandsodmseleiteapcatioCK），ingleaplicatioofiocarBioha （204号 g⋅kg-1 ），singleapplicationofsodiumselenite（S，sodiumselenite8mg·L1），andcombinedapplicationofcharandsodiumselenite（， biochar 2 g⋅kg-1+ sodiumselenite 8mg⋅L-1 ），to study theeffectsonyield，Se content，Cd content，and physiological characteristics under CdstressTheresultsshowedtatdiferentaplicaonmetodsofioarandsodiuselenitecouldsignificantlyincreaseiceyieldand reduceCdcontent.ComparedwithCK，theyieldperplantofQuan9you81，Yixiangyou2115andLongliangyouhuazhanincreasedby （204号 74.45% ， 104.16% ，and 92.41% respectively under BS treatment， 60.92% ， 82.69% ，and 65.46% under B treatment， and 33.43% ， 46.54% ， and 35.01% under S treatment. The Cd content in rice grains decreased by 58.09 % ， 72.62% ，and 51.56% under BS treatment，52.94 % （204 53.57% ，and 38.54% under B treatment， 36.76% ， 35.71% ，and 23.96% under S treatment，respectively. The Se content increased by 100.00% ， 70.77% and 140.00% under BS treatment， 2.27% ， 8.46% and 12.00% under B treatment， 53.41% ， 26.92% and 92.00% under S treatment，respectivelyDierentfertlizationmetodsouldinreasethactivityofntioxidanteesinicelavs，deeasethe contentofmalondialdehdeandallviatethedamageoflipidmembraneperoxidationunderCdstressInconcusionthecombationf biocharandsdiumseleniteapplicationisbneficialforpromotingriceyieldicrease，educingCdandenrichingSeandcanaleviatethe damage of Cd stress on rice leaves.

Keywords：biochar;sodium selenite;cadmium;selenium;rice;antioxidant enzyme

在工业迅速发展的时代背景下，土壤重金属污染问题日益突出，有关研究表明，我国约1000万 hm2 的农田受到污染，333.3万 hm2 的耕地因污染不宜耕种农作物，其中重金属是主要污染因素1。（剩余17625字）