Now I wouldn't know anything about growing OSR in the 1980's but the impression I get is plough and drill 1st week sep. 30 units N and then, jollop of N in the spring, swath it and bob's your uncle 30cwt an acre. I have several questions; was it really like this? No S due to Acid Rain? Were there problems with CSFB? Neonics hadn't been invented so did pyrethroids work? I know further back people used to lose kale crops to CSFB regularly so its not like they weren't around. Also the rape varieties weren't double low were they? So less palatable to pigeons and CSFB? Or is this a red herring?Find anything about this interesting. i will tag @Two Tone because I'm sure he will have something good to say but all contributions welcomed........