I would like to read those, should you happen to know which ones. It seems counter-intuitive. soil amendments only including N-P-K don't seem like they'd help m

I would like to read those, should you happen to know which ones. It seems counter-intuitive. soil amendments only including N-P-K don't seem like they'd help much with micronutrients anyhow, so ideally "functional local farming" should be considered an imperative, at least for supplementing mass-farmed foods. Like sure, canned and frozen vegetables for 6 meals a week, but one meal should have locally sourced something that hasn't been frozen or otherwise treated. A properly managed and grown acre of land can provide a quarter ton to a ton of food in a year, but you can't use tractors or anything, it all has to be managed by hand or small machines.