The thing about food production is that intensive fertilizer use allows double-cropping (two+ harvests per year in one field, like corn-soy). Brazil uses this a lot. So if you switch to lower input 'regenerative' processes, you'll only get one harvest per year most likely. This means Brazil might stop exporting food, and a lot of countries rely heavily on those exports.
https://www.card.iastate.edu/ag_policy_review/article/?a=94
Becoming reliant on such intensive farming practices was a mistake, but here we are.