Hectare sizes
http://en.wikipedia.org/wiki/Hectare
1 acre feeds a person
http://www.farmlandlp.com/2012/01/one-acre-feeds-a-person/
http://en.wikipedia.org/wiki/Hectare
1 acre feeds a person
http://www.farmlandlp.com/2012/01/one-acre-feeds-a-person/
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