Our agronomist was telling us that when he was in France lots of farmers divide their fields up into blocks of different crops rather than having a field of just one crop. The theory being that beneficial insects will benefit from different crops, if weed control is bad in one type of crop one year then only a section of the field will have poor control and if one soil type favours one type of crop it should do better. I was thinking about doing a trial field or two as we are ring fenced so logistics are not an issue or am I wasting my time?