摘要
叶面肥以其可溶性高、吸收好、缓解重金属吸收效果明显等优点而逐渐成为抑制作物吸收重金属研究的新热点。目前不同种类叶面肥对农作物的阻镉机理主要是通过拮抗吸收,抑制含镉的金属酶活性,降低作物的蒸腾效率以阻碍Cd的向上运输,促进抗氧化物质的形成,对重金属离子具有吸附及螯合作用,以及增加作物营养物质的叶面吸收从而增加作物胞内盐浓度以此抑制作物对根系环境及空气中重金属的吸收等。本文对此进行了综述。
Foliar fertilizer has become a new research hotpot nowadays due to its high solubility,good absorption,and significant effect of reducing plant heavy metal absorption.This paper reviews the research progress on the mechanisms by which different types of foliar fertilizers inhibit plant cadmium absorption.Their main mechanisms of action are as follows：antagonism to heavy metal absorption,inhibition of cadmium metal enzyme activity,reduction of Cd transpiration efficiency in crops,promoting the formation of antioxidant substances,adsorption and chelation of heavy metal ions,enhancing crop uptake of nutrients by foliage,and increasing cellular salinity to control the heavy metal absorption from plant rhizosphere and air.
出处
《大麦与谷类科学》
2017年第3期1-5,共5页
Barley and Cereal Sciences
基金
十三五国家科技计划支撑项目(2015BAD05B00)
关键词
叶面肥
阻抗重金属
阻镉机理
Foliar fertilizer
Heavy metal resistance
Cadmium resistant mechanism
作者简介
张梅华（1987-）,女,硕士,主要从事环境微生物治理.E-mail：meihua.zhang@talroad.com.cn.
