江苏农业学报2025，Vol.41Issue(3)：517-525,9.DOI:10.3969/j.issn.1000-4440.2025.03.011
不同改良剂对富硒高镉耕地土壤理化性质和玉米对硒、镉吸收的影响
Effects of different amendments on the physicochemical properties of sele-nium-rich and high-cadmium cultivated soils and the absorption of seleni-um and cadmium by maize
摘要
Abstract
In order to improve selenium-rich and high-cadmium cultivated soils,this study selected at-tapulgite,foliar silicon fertilizer,biochar,and microbial inoculant as amendments.Through single or combined ap-plication methods,the effects on the physical and chemical properties of soil and the absorption of selenium and cad-mium by maize were explored.The results showed that the soil pH,soil cation exchange capacity,soil organic matter content,soil available phosphorus content,soil available potassium content,soil neutral phosphatase activity,soil fluores-cein diacetate(FDA)hydrolase activity,and soil urease activity in the biochar-applied treatment were significantly higher than those in the control,and the soil available selenium content and soil available cadmium content were significantly lower than those in the control.Compared with the treatments of applying biochar or microbial inoculant alone,the soil available phosphorus content,fluorescein diacetate(FDA)hydrolase activity,neutral phosphatase activity,and urease activity in the treatment of applying biochar+microbial inoculant were significantly increased,and the soil available cadmium content was significantly decreased.Compared with the control,the soil pH,cation exchange capacity,soil available phosphorus con-tent,soil available potassium content,soil available selenium content,and selenium content in maize grains in the treat-ment of applying attapulgite+foliar silicon fertilizer were significantly increased,and the soil available cadmium content was significantly decreased.In conclusion,the application of biochar+microbial inoculant and attapulgite+foliar silicon fertilizer had better effects on soil improvement.This study provides a theoretical basis for the soil improvement of selenium-rich and high-cadmium cultivated lands.关键词
土壤改良剂/富硒高镉耕地/镉污染/玉米Key words
soil amendment/selenium-rich and high-cadmium cultivated land/cadmium pollution/maize分类
农业科技引用本文复制引用
王钊,张小莉,杨杰,陈继平,张浩楠,吕家珑,贾汉忠,代允超..不同改良剂对富硒高镉耕地土壤理化性质和玉米对硒、镉吸收的影响[J].江苏农业学报,2025,41(3):517-525,9.基金项目
陕西省重点研发计划项目(2024NC-ZDCYL-02-14) （2024NC-ZDCYL-02-14）
国家重点研发计划项目(2023YFD1700102) （2023YFD1700102）
陕西省农业关键核心技术攻关项目(2024NYGG011) （2024NYGG011）
陕西省公益性地质调查项目(201908) （201908）
