农业环境科学学报2025，Vol.44Issue(12)：3053-3060,8.DOI:10.11654/jaes.2025-0086
生物炭联合亚硒酸钠对水稻生理特征及硒镉累积的影响
Effects of biochar and sodium selenite combination on physiological characteristics and cadmium selenide accumulation in rice
摘要
Abstract
This study was designed to examine the effects of different application methods of biochar and sodium selenite on reducing cadmium(Cd)and enriching selenium(Se)in rice grains,Quan 9 you 801,Yixiangyou 2115 and Longliangyouhuazhan were studied by pot experiment.It was conducted four treatments:no biochar and sodium selenite application(CK),single application of biochar(B,biochar 2 g·kg-1),single application of sodium selenite(S,sodium selenite 8 mg·L-1),and combined application of biochar and sodium selenite(BS,biochar 2 g·kg-1+sodium selenite 8 mg·L-1),to study the effects on yield,Se content,Cd content,and physiological characteristics under Cd stress.The results showed that different application methods of biochar and sodium selenite could significantly increase rice yield and reduce Cd content.Compared with CK,the yield per plant of Quan 9 you 801,Yixiangyou 2115 and Longliangyouhuazhan increased by 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％,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,respectively.Different fertilization methods could increase the activity of antioxidant enzymes in rice leaves,decrease the content of malondialdehyde,and alleviate the damage of lipid membrane peroxidation under Cd stress.In conclusion,the combination of biochar and sodium selenite application is beneficial for promoting rice yield increase,reducing Cd and enriching Se,and can alleviate the damage of Cd stress on rice leaves.关键词
生物炭/亚硒酸钠/镉/硒/水稻/抗氧化酶Key words
biochar/sodium selenite/cadmium/selenium/rice/antioxidant enzyme分类
农业科技引用本文复制引用
蒋亚,吴道明,周凯,王丽,刘桂华,柴冠群,范成五..生物炭联合亚硒酸钠对水稻生理特征及硒镉累积的影响[J].农业环境科学学报,2025,44(12):3053-3060,8.基金项目
贵州省科技支撑计划项目(黔科合支撑[2023]一般208,黔科合支撑[2024]一般106) （黔科合支撑[2023]一般208,黔科合支撑[2024]一般106）
贵州省农业科学院青年基金项目(黔农科青年基金[2023]31号) （黔农科青年基金[2023]31号）
国家重点研发计划项目(2018YFD0800602)Science and Technology Support Program of Guizhou Province([2023]208,[2024]106) （2018YFD0800602）
Foundation for Young of Guizhou Academy of Agricultural Sciences([2023]No.31) （[2023]No.31）
National Key Research and Development Program of China(2018YFD0800602) （2018YFD0800602）
