磺草酮与莠去津混用对稗草及反枝苋防效研究

Studies on the Action of Sulcotrione and Atrazine Combinations against Echinochloa Crusgalli and Amaranthus Retroflexus

在温室栽培条件下,采用Gowing法评价磺草酮与莠去津混用的联合作用类型。结果表明,二者混用后对稗草和反枝苋的作用效果均明显提高;混合剂对稗草表现出明显的增效作用,在磺草酮400g/hm2,莠去津800、900g/hm2时对稗草和反枝苋的增效作用最为明显,其鲜重抑制率(E-E0)分别为9.1%和9.5%;混合剂对反枝苋作用效果表现为相加作用。

The experiment was conducted to evaluate the action of combinations of sulcotrione and atrazine in controlling Echinochloa Crusgalli and Amaranthus Retroflexus. The results showed that combining these two herbicides produced a great increase of effect in controlling the two test weeds. When sulcotrione used 400g/hm2 and atrazine used 800 to 900 g/hm2, the combinations got the greatest synergistic effect to Echinochloa Crusgalli and Echinochloa Crusgalli, its inhabition to weigh was 9.1% and 9.5% separately.