摘要
除草剂施用过量、施用时期不当、间隔期不够、气象条件不利等可导致直接药害;蒸气压较高、雾滴过小、风力过大等可导致飘移药害;残留期长、土壤黏重、间隔期不足等可导致残留药害.分析了不同作用机理的除草剂所产生的特异性药害症状,提出了除草剂科学安全使用、添加安全剂、喷施植物生长调节剂和叶面肥、果断毁种等预防和缓解除草剂药害的有效措施.
Abstract
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.
维普
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