We've reseeded a lot of silage meadows over the past 5 years and they've all responded well to urea but our old meadows dont seem to respond much to it compared to AN. Is it worth the hastle buying a few tonne of both old and new reseeds or just going for straight AN? We found the fields spread with urea green up quicker and isnt quite "forcing" the grass to grow hence probably why the old grasses arent growing, but might be a short term fix to use AN till theyre reseeded.