三种苗前除草剂防除花生田杂草试验研究

Study of Three Herbicides on Weeds in Peanut Field

[目的]为明确乙氧氟草醚、精异丙甲草胺、二甲戊灵在花生播种后出苗前施用对五种杂草的防除效果及对花生的安全性。[方法]采用田间小区试验法,调查了其对花生田主要杂草的防控效果和对花生产量的影响。[结果]三种药剂对花生田杂草防效都在81%以上,3种药剂对花生产量的影响差异不显著,但对于阔叶类杂草的防除,乙氧氟草醚百和二甲戊灵略高于精异丙甲草胺。[结论]24%乙氧氟草醚乳油180 g a.i./hm2和960 g/L精异丙甲草胺水乳剂1 152 g a.i./hm2以及330 g/L二甲戊灵乳油742.5 g a.i./hm2,可以有效的防除辽宁地区花生田常见的一年生杂草。

[Objective] The aim was to explore control and safety effect of three herbicides on peanut, including Oxyfluorfen, S-metolachlor and Pendimethalin. [Method] By field experiment method, effect of weed control and peanut yield. [Result] Weeding rate of these three herbicides were above 81%. And these herbicides had less effect on peanut yield. [Conclusion] 180 g a.i./hm2 of 24% Oxyfluorfen EC, 1 152 g a.i./hm2 of 960 g/LSmetolachlor EW and 742.5 g a.i./hm2 of Pendimethalin EC could improve weeding effect of one-year weed.