ahdb dont say that 93% of wheat has been planted. they say that farmers when surveyed in February intended to plant 93% of the area of wheat they did last year, this included winter wheat and spring wheat yet to plant.
when you look at the data, it works out to be about 60+% of last years area. notso different than this survey
east midlands- 2019 planted 326,000Ha - 2020 survey, intended planted area 227,000Ha of which planted 62% = 140,740Ha ,(140740/326000)*100 = 43% of last years wheat area planted in the east midlands.
safe to say what was intended in February hasn’t happened for many and given immediate forecast plus how long it will take many soils to dry prospects of much (if any) more winter wheat going in are now remote
I think spring wheat is even becoming doubtful for some on heavy soils now, or late / lower potential at best ?
so logic says the current AHDB estimate of Uk tonnage is extremely optimistic