What a absolute crock of shite, you might own a forum @Clive but you ain't fecking god, pull ya head out ya arse!
So would you grow 100% spring crops ? Or 100% winter wheat or 100% potatoes That would be high weather risk yes ?
50/50 autumn/ spring and 3 or 4 different crops etc would be managing weather (and market) risk ?
Nothing to do with owning a forum, pretty obvious common sense I reckon ?