稻草净防除稻田杂草试验

Experiment on Weeds Control of Isoproturon-MCPA in the Rice Field

稻草净亩用５０～１００克对稻田眼子菜、鸭舌草、四叶萍等阔叶杂早有很好的防效，并有明显的增产作用。大田移栽后１５天一次施药可以控制水稻田整个生育期的闷叶杂草。

The effect of isotjroturon-MCPA on weeds controlin rice field was studied.The result showed that isoproturon-MCPA was a selective herbicide. 15 days after the transplanta-tion of seedlings one time treatment with the dosage of 750-1500g/ha of a formulation most annual broad-ldaf weeds suchas Potamogeton dostonctus,Monochoria vagil1alis and Marsileaquadrifolia can be controlled during the whole growing periodof rice.