14%噁草酮·乙氧氟草醚乳油对棉花田杂草的防效及安全性

Control Effect and Security of Oxadiazon·Oxyfluorfen 14% EC against Weeds in Cotton Field

[目的]明确14％噁草酮·乙氧氟草醚乳油对棉花田杂草防效和对棉花的安全性。[方法]采用茎叶喷雾施药，定期调查的方法进行了田间药效试验。[结果]药效试验表明，14％噁草酮·乙氧氟草醚乳油的推荐用量为336-504ga．i．／hm2。施药45d后对杂草总体防效可达94．43％。[结论]14％噁草酮·乙氧氟草醚乳油能够有效防除棉花田杂草并对棉花具有较好的安全性。

[Aims] The paper aims to verify the control effect against weeds and safety on cotton of oxadiazon-oxyfluorfen 14% EC in cotton field. [Methods] Field trials were carried out by using methods of stems-leaves spraying and regular survey. [Results] The field trials showed that the recommended dose of oxadiazon＇oxyfluorfen 14% EC was 336-504 g a.i./ha, and the integrated control effect reached 94.43% on weeds after 45 d. [Conclusions] Oxadiazon＇oxyfluorfen 14% EC shows good control to weeds in cotton field and is safe on cotton growth.