Self-Sustainability Tangent – Part 11 – Fields


In our map, we have five 100 m2 fields to grow food. Five fields for the necessary crop rotation to ensure the soil recovers and does not get depleted. Because self-sustainability also includes minimising dependence on other outward inputs. In this post, let’s concentrate mainly on the crop rotation.

I personally consider these crops to be essential for growing in the fields each year in this rotational order:

  1. Potatoes – 1 field, estimated caloric output 308 Mcal p.a. with 4 kg/m² production on average. This is the heavy lifter each year, guaranteeing enough carbs for bare survival, if not actual sustenance.
  2. Soy/Beans – 1 field, estimated caloric output 100 Mcal p.a. with 0,3 kg/m² production on average. These produce both carbs and proteins, and they fix nitrogen into the soil at the same time.
  3. Oats/Wheat/Spelta – 2 fields, estimated caloric output 230 Mcal p.a. with 0,3 kg/m² production on average. Again source of both carbs and protein (in combination with beans/peas, a complete protein), plus bedding straw for animals.
  4. Alfalfa  – 1 field, essentially as a rest to fix nitrogen and to grow some high-quality hay to feed the rabbits. Also, part of this resting field could and should be reserved for the composting of both chicken and rabbit manure, as well as any organic scraps that cannot be eaten by them.

This way, the five fields could produce, in my estimation, 641 Mcal p.a. That means two-thirds of the yearly needs of one person living an active lifestyle. And let’s make one thing clear – trying self-sustainability is not for someone who does not like potatoes and exercise.

The remaining third of calories would need to be provided by the rest of the garden, and about that next time.

 

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