扑草净防除眼子菜1965年先于日本开始试验应用,至今仍是防除眼子菜的一种有效除草剂。但高温下使用,水稻常常发生药害。1978年7月上旬,我省高温酷热,平均气温32℃以上,最高日平均温度达39.9℃,凡单用扑草净的地方,多处发生药害,特别是抗药性较差的釉稻。此后,我省眼子菜化除面积锐减。1981年在宿迁县来龙公社作了50%扑草净单用高温下对籼稻的安全极限剂量测定。扑草净系上海 Prometryn net anti-eyedrops vegetables in 1965 in Japan before the start of experimental applications, is still an effective herbicide to control eye drops. However, when used at high temperatures, phytotoxicity often occurs in rice. In early July 1978, the province was hot and hot, with an average temperature above 32 ℃ and a maximum daily average temperature of 39.9 ℃. Wherever prometryn was used alone, phytotoxicity occurred in many places, especially in those with poor antibiotic resistance. Since then, in addition to reducing the area of ​​our province Caijing. In 1981 Suqian County Dragon commune made 50% of prometryn net single high-temperature safety limit of indica rice dosimetry. Prunella Department of Shanghai