Excessive application,improper application period,insufficient interval and unfavorable meteorological conditions can lead to direct herbicide phytotoxicity.High vapor pressure,small mist droplet,and strong wind can lead to drifting phytotoxicity.Long residual period,soil viscosity,insufficient interval,etc.can lead to herbicide residual phytotoxicity.The specific toxic symptoms of herbicides with different mechanisms of action were analyzed in this paper.The effective measures to prevent and alleviate herbicide phytotoxicity such as scientific and safe use of herbicides,addition of safety agents,spraying of plant growth regulators and foliar fertilizers,and decisive destruction of seed were put forward.
herbicidephytotoxicity symptomcause of phytotoxicityphytotoxicity control
万方数据
维普
