1996～ 2 0 0 0年进行了咪唑啉酮类除草剂土壤残留对后茬作物影响的田间小区试验。结果表明 ,金豆 (imazamox,甲氧咪草烟 ) 40、6 0 g/ hm2 (在推荐剂量范围内。有效浓度 ,下同 ) ,施药后 12个月可以安全种植小麦、玉米和白瓜籽 ,2 4个月后可以安全种植油菜、甜菜、白菜、亚麻和马铃薯 ;金豆高剂量 (80、 12 0 g/ hm2 )对敏感作物有一定的药害。金普施特(imazethapyr/ imazamox) 50 g/ hm2 (推荐剂量 ) ,施药后 12个月可安全种植小麦、玉米 ,2 4个月可安全种植油菜、白瓜籽和马铃薯 ,不可种植甜菜、白菜和亚麻 ;倍量 (10 0 g/ hm2 )可使敏感作物严重受害。普施特 (imazethapyr) 75g/ hm2 (推荐剂量 ) ,施药后 12个月可安全种植小麦和玉米 ,2 4个月可安全种植白瓜籽和马铃薯 ;2 4个月后仍对油菜、甜菜、白菜和亚麻有严重药害。
The field trial on effect of residues of imidazolinone herbicides in soil on succeeding crops were conducted during 19962000. The results showed that the sensitivity of succeeding crops to the herbicides was different. Wheat, corn and pumpkin could be planted safely 12 months after and rape, beet, Chinese cabbage, flax and potato planted safely 24 months after the applying of imazamox 40 g/hm2 and 60 g/hm2 . The sensitive crops, such as rape, beet, Chinese cabbage, flax and potato, might be injured at the higher dosages of imazamox 80 g/hm2 and 120 g/hm2 after 12 months. Under the commended dosage of imazethapyr/imazamox 50 g/hm 2 , it is safe that planting wheat and corn after 12 months and planting rape, pumpkin, potato after 24 months. However, beet, Chinese cabbage and flax could be injured seriously after 24 months. At double dosage of imazethapyr/imazamox 100 g/hm2 , there were severely harmful to sensitive crops besides wheat and corn in this experiment after 12 and 24 months. At the commended dosage of imazethapyr 75 g/hm2 , wheat and corn could be planted safely after 12 months, and planted pumpkin and potato was safe 24 months later. Serious injury was observed 12 and 24 months after the applying of imazethapyr to rape, beet, Chinese cabbage and flax.