Acres Needed to Feed Dunbar Village

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Corn and wheat have 1640 or 1540 cal/lb, so 577 lb of grain per year per person is needed based on 2500 calorie diet. At 40 bu/acre for wheat, 100 bu/acre yields of corn - at 60 lb/bushel - that is 2400lb wheat and 6000 lb corn. So 20-50 acres are needed. But if we like paleo diet sweet potatoes - these yield 400 bushels or 20000 lb - but only 389 calories per pound - means a 100 bushel of corn equivalent. Let’s say that we do a lot of sweet potato and some grain - so that 40 acres is needed for a village. https://extension2.missouri.edu/g6368. $700M market for sweet potato, USA. https://www.agmrc.org/commodities-products/vegetables/sweet-potatoes/. Much smaller crop of Potatoes in Missouri - with 110 hundredweight average crop - http://www.ipmcenters.org/cropprofiles/docs/mopotato.pdf.

40 acre per day sweet potato planter -

https://www.youtube.com/watch?v=wgO-ypBnSKQ

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