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恶草酮是选择性芽前、芽后除草剂,杀草谱较广,水、旱田均可使用。杂草自萌芽至2-3叶期均对恶草酮敏感,以杂草萌芽期施药效果最好,随杂草长大效果下降。法国安万特作物科学公司于1987年在我国正式登记商品名称农思它12%乳油,用于水稻田除草,用量(有效成分)360-480克/公顷,施药方法瓶洒。同时于1999年在我国正式登记农思它原药。江苏省南通第二农药厂于1989年首家登记生产20%丁·恶草乳油,用于水稻防除稗草、莎草等,用量(有效成分)600-675克/公顷。1991年辽宁省旅顺农药厂登记生产13%农思它乳油,辽宁省丹东市农药总厂登记生产13%恶草酮乳油,此后
Clomazone is a selective pre-emergence and post-emergent herbicide, which has a broad spectrum of herbicides. Water and dry fields can be used. The weeds were sensitive to oxadiazone from the buds to the 2-3 leaf stage, and the weeds had the best application effects in the germination period, and decreased with the growth of the weeds. In 1987, France’s Aventis Crop Science Company officially registered the product name Nongsi 12% EC in the rice field for weeding, with a dosage (active ingredient) of 360-480 g/ha, and a bottle of spraying method. At the same time in 1999 in China officially registered Nongsi it original drug. Nantong No. 2 Pesticide Factory of Jiangsu Province registered and produced 20% D-Ewe Emulsion in 1989. It was used for controlling rice barnyardgrass and sedges. The amount (active ingredient) was 600-675 g/ha. In 1991, Liaoning Province Lushun Pesticide Factory registered 13% Nongsito EC and Dandong Pesticide Plant of Liaoning Province registered and produced 13% Oxadiaine EC.