Unlikely calculation
On Sat, 19 Jul 2003 16:42:12 GMT, Don Foster
wrote:
An exploration into the notion of how Iowa farmers would fare in feeding
the world produced an unlikely result: the soy and corn crops of thirty
three Iowa(s) would feed the world's population at 3500 Cal./day. I
would appreciate a review of my figuring if someone is willing.
Estimated world population 5/23/03 = 6,294,523,715 human beings
World kcal. requirements @ 3500 Kcal./day/human being = 2.20308E+13 kcal.
World kcal. requirements/year = 8.04125E+15 kcal.
Iowa 2002 corn = 1,960,000,000 bushels
Iowa 2002 soy = 494,900,000 bushels
Iowa 2002 corn @ 60lb./bushel = 1.176E+11 lbs.
Iowa 2002 soy @ 60lb./bushel = 2.9694E+10 lbs.
Kcal./lb corn = 1828 kcal./lb. corn
^^^^^^^^^^^^^^
That number seems to me to high for nonruminant ME
(should think more like 1500 something)
Kcal./lb. soy = 1579 kcal./lb. soy
Kcal. Iowa corn 2002 = 1.8569E+14 kcal.
Kcal. Iowa soy 2002 = 5.4281E+13 kcal.
Total kcal. Iowa corn & soy 2002 = 2.39971E+14 kcal/year (2002)
World annual kcal. requirements/ Iowa 2002 corn & soy kcal. production =
33.51
My thanks,
Don Foster
Colorado
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