19％丁·扑可湿性粉剂防除水稻旱育秧田杂草研究

Experiment on weed control of rice seedling upland field with 19% WPMP

19％丁·扑可湿性粉剂防除水稻旱育秧田杂草杀草谱广,效果好,使用方法简便,适用性强。采用毒土法播后苗前施药7．5 kg／hm2,对稗草防效达100％,对马齿苋和黎等阔叶杂草防效也在90％以上。

Using the method of small plot experient to research the effect on weeds controlling of rice seedling upland field with 19% WPMP. The result indicated that 19% WPMP （ wettable powder of machet and prometr yne） 7. 5 kg/hm^2 mixed with soil, which were applied to soil surface in the post sowing and pre-emerge period, the effect on controlling Echinochloa Crusgalli （L） Beauv reached to 100%, the effect on controlling Chenopodium album L, Portulaca oleracea L and other weeds reached from 90% to 100%.