@ssmshah@treacledinosaur@AHDB_Cereals Copper deficiency isn't very common, amongst other situations, may also occur in shallow soils over chalk. Soil test; a deficiency is more likely below 1.0 mg Cu/l (RB209, section 1 & 4). Should be a justified application, keep costs of production low to increase gross margins.
@dgwhoyles Really good to know, following standard RB209 practice! David did you look at AHDB excess winter rainfall webpage? Shows EWR in your region.