智慧农业导刊2024，Vol.4Issue(8)：52-55,4.DOI:10.20028/j.zhnydk.2024.08.013
地膜微塑料对玉米生长与养分吸收的影响
摘要
Abstract
The residual and broken microplastics(Microplastics,MPs)of mulch film continue to increase,which has become one of the important sources of MPs in farmland soil.A pot experiment was conducted to analyze the effects of mulch film MPs treatment levels(0.5%1%and 2%)on the morphology,physiology,biomass and nutrient absorption of corn.The results showed that compared with the control(CK),0.5%mulch film MPs had no significant effect on the growth of corn.With the increase of MPs levels of mulch film(1%and 2%)and the prolongation of exposure time(jointing stage and heading stage),corn plant height,stem width,leaf area,root length and surface area and biomass decreased significantly.The decrease of chlorophyll content and SOD enzyme content and the increase of MDA content in leaves indicated that mulch film mulching MPs caused photosynthetic damage and oxidative stress in corn.Higher levels of mulch film MPs(1%and 2%)also inhibited nutrient absorption by corn.The inhibition of MPs accumulation of soil mulch film on crop growth may reduce the advantage of mulch film mulching cultivation.关键词
微塑料/地膜/玉米/形态/生理/生物量/养分吸收Key words
microplastics/mulch film/corn/morphology/physiology/biomass/nutrient absorption分类
资源环境引用本文复制引用
刘鲤萍,卢文振,刘鑫雨,祝鹏飞..地膜微塑料对玉米生长与养分吸收的影响[J].智慧农业导刊,2024,4(8):52-55,4.基金项目
安徽省高校自然科学研究一般项目(KJ2020B24) （KJ2020B24）
