So to make the numbers balance we need to make up 850mb.

135 mb overestimation in Kansas
like 85 mb swing from Sorghum to Corn in ethanol grind..

so that's 220 mb just in Kansas alone.. someone else will have to chime in eleswhere.. the Dakota's will probably be this big or more..

edit add.. oh and we were feeding wheat this time last year.. not now.