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2 methods of sustainable agriculture that I've been really feeling lately:
1 - In certain terraced rice fields in China they introduce koi fish into the field when it's flooded so that when it's time to harvest they can eat rice and fish.
2 - Growing a sun-loving vine-like crop on a raised structure over crops that need shade so they both get what they need and grow way better as companions, and then in the end there's more to eat.
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