植物生长调节剂与除草剂混用对水稻的安全性及对除草效果的影响

The Effect Study of Herbicide Mixed with Plant Growth Regulators on Weeds Control and Crop Safety of Rice

[目的]探索植物生长调节剂与除草剂混用后对减轻作物药害和提高除草剂药效的影响。[方法]采用室内盆栽的方法,研究芸苔素内酯和胺鲜脂分别与不同除草剂混用后对水稻药害的减轻作用或是生长促进的作用,同时研究这2种植物生长调节剂对除草剂药效的影响作用。[结果]二氯喹啉酸与芸苔素内酯混用能够提高对稗草的防效;唑草酮与胺鲜脂混用,不仅可以减轻对水稻的药害,而且对水稻的生长有一定的促进作用;二氯喹啉酸与胺鲜脂混用,稗草的防效降低,对水稻的药害加重;嘧啶肟草醚与芸苔素内酯混用,对水稻的药害加重。[结论]植物生长调节剂与除草剂混用是减轻作物药害和提高除草效果的一个有效途径。

[Aims] The study aims to determine the effect of plant growth regulator mixed with herbicide on crop safety and weeds control. [Methods] In greenhouse, weeds and rice were treated with the mixtures of two plant growth regulators brassinolide and DA-6 with herbicides respectively. The control effect for weeds, safety and growth promoting effects on maize were investigated. [Results] The results showed that the mixtures of quinclorac＋ brassinolide can exhibite better herbicidal effect; carfentrazone-ethyl＋ DA-6 reduced the injures on rice and promoted the growth office. [Conclusions] It is an effective way to reduce herbicides injure and improve crops growth by using mixture of herbicides and plant growth regulators.