I wouldn’t say “science disproves itself” because at its very core, science is a method of testing ideas. The method is sound and fruitful. It teaches us new things every time we use it correctly. What it disproves are human misconceptions.

Being cold makes muscle tissue recycle mitochondria. I think.

Companion planting. I do it in my garden. It’s a good way to pack things in. Not sure how it would be accomplished with mechanized farming. There’s also no-till methods which help build healthy soil instead of letting it erode. Keeps the soil biology alive which in turn feeds the plants. Reduced fertilizer and water burden. There are a lot of various farming/gardening methods outside of the mainstream that work as well or better than buying fertilizer and pesticides and spraying it on everything.