Farming isn't a hobby. Gardening is a hobby. No one really expects to be able to grow enough food to feed hundreds of households from a garden, but maybe technology can help change that. Autonomous farming robots and other labor-saving devices might make farming a lot easier for a few people to be much more productive, but we're not quite at the point where anyone really needs to change farming techniques so drastically. However, if you think you'd want to become a post-modern farmer, check out a few of these links.
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