Minimum Growing Space

[Mortblanc]

It seems everyone is counting on "buying feed" as part of their "subsistence living".

Buying what you need is not subsistence living. You are doing that right now without the blood sweat and tears.

Traditional requirements for 15th century level of subsistence farming was 6 acres per person. Those are the numbers given my the people of that day and your historians at any rate.

Standard maize expectation over here is 300 bushels per acre with proper rainfall and fertilizer.

Add to that the view over here of maize as an all around human and animal food, due to the fact that our continent was settled with maize being the primary subsistence/survival crop.

If it would hold up to the rigors of survival farming 100 years ago, with less yield per acre than expected today, it will still do the job.