摘要
ThroughapotculturelanthanumnitratewasappliedtomaizeseedlingsgrowninaredloamysoiltoinvestigatethephysiologicalandtoxiceffectsofaddedLaonthegrowthofcropseedlingsandLabioaccumulationtohelpunderstandtheenvironmentalchemistrybehaviorsofrareearthelementasfertilizersinsoils.Comparedtothecontrol,LaconcentrationsinshootsandespeciallyinrootsofmaizeseedlingsincreasedwithanincreaseofLainthesoil.Also,withaddedconcentrationsofLa≥0.75gLakg-1soiland≥0.05gLakg-1soil,thedryweightofshootsandrootsofmaizeseedlingswassignificantlyreduced(P≤0.05),respectively,comparedwiththecontrol.Additionally,La≥0.5gkg-1inthesoilsignificantlyinhibited(P≤0.05)primaryrootelongation.RootsweremoresensitivetoLastressthanshootsandthuscouldbeusedasabiomarkertoLastress.Overall,intheredloamysoilstudied,LahadnosignificantbeneficialeffectsonthegrowthofmaizeattheaddedLalevelsabove0.1gkg-1soil.
出版日期
2006年06月16日（中国期刊网平台首次上网日期，不代表论文的发表时间）
