From experiences using computer vision last year, some of the cameras got very confused by bits of dry vegetable matter, particularly long thin bits, or 'straw' lying on the surface of the soil. The previous log shows a very scrappy plot, mainly due to this straw being turned over near the surface rather than buried. A pass with the plough turns the soil over to about 8" depth and should help bury the rubbish. The test plot is now left to dry out and any remaining weeds to get blasted by the strong sunlight we're getting at the moment: