Depends how you intend to establish. Strictly speaking the label says only potatoes or sp barley after ploughing!I have a failed OSR crop and looking to drill winter oats instead. The OSR was sprayed pre em with oryx (metazichor +quinmeric) I don't want to risk any damage to the oats from the pre em. Has anybody had this situation before?
Sorry we only use Butisan (metazachlor) alone. Oryx appears to have greater restrictions according to label then Butisan alone as per Tractor Boy. As Brisel suggests best to follow label in this case.Sadly have experience in this. We've several fields of OSR like this where nothing has come - soil capped after heavy rain which has dried out to form a crust combined with the metazachlor probably being washed down through the soil. One field we managed to resow in OSR and is coming away second time around. The rest have had to be ploughed and resown in winter barley/wheat. Early sown and last sown OSR crops seem to have survived the best whilst those sown around the middle of August seem to have been the ones that failed.
Between crop failures, flea beetle and slugs it's not been a good year so far for OSR crops.
To cut a long story short, looks like you better look out the plough.