After using which herbicides can you not plant sunflowers in the following crop
If Pursuit (imazethapyr, imazethapyr acid) was used on the previous crop, there must be an interval of 18 months before planting sunflowers; for chlorimuron-ethyl (chlorimuron) there must be an interval of 18 months before planting sunflowers; if the per-hectare rate of nicosulfuron exceeds 60 grams of active ingredient, that is, more than 100 milliliters per mu of 4% nicosulfuron, there must be an interval of 24 months before planting...
If Pursuit (imazethapyr, imazethapyr acid) was used on the previous crop, there must be an interval of 18 months before planting sunflowers; for chlorimuron-ethyl (chlorimuron) there must be an interval of 18 months before planting sunflowers; if the per-hectare rate of nicosulfuron exceeds 60 grams of active ingredient, that is, more than 100 milliliters per mu of 4% nicosulfuron, there must be an interval of 24 months before planting sunflowers; for flumetsulam, at a per-hectare rate of 48-60 grams of active ingredient, that is, 3.2-4 grams per mu of 80% flumetsulam, there must be an interval of 18 months before planting sunflowers; for fomesafen (Flex) at a per-hectare rate of 375 grams of active ingredient, that is, 100 milliliters per mu of 25% fomesafen, there must be an interval of 24 months before planting sunflowers; if the per-hectare rate of metsulfuron-methyl exceeds 7.5 grams of active ingredient, there must be an interval of 24 months before planting sunflowers; if the per-hectare rate of simazine exceeds 2240 grams of active ingredient, that is, more than 300 grams per mu of 50% simazine, there must be an interval of 24 months before planting sunflowers; if the per-hectare rate of atrazine exceeds 2000 grams of active ingredient, that is, more than 350 milliliters per mu of 38% atrazine, there must be an interval of 24 months before planting sunflowers. For chlorsulfuron at a per-hectare rate of 15 grams of active ingredient, there must be an interval of 24 months before planting sunflowers; if the per-hectare rate of clomazone exceeds 700 grams of active ingredient, that is, more than 100 milliliters per mu of 48% clomazone, there must be an interval of 18 months before planting sunflowers.