I've gotten massive amounts of food out of small raised beds with nothing more than compost tea and "plant food". Is it really not possible to consistently prod

I've gotten massive amounts of food out of small raised beds with nothing more than compost tea and "plant food". Is it really not possible to consistently produce good yields from tightly packed beds with crop rotation on a 1 acre plot [without pesticides/herbicides]? I know it wouldn't scale up with typical large-scale farming monocultures, but for a mixed family plot? Aside: it seems we've long been able to feed the world (in terms of meeting caloric and nutritional needs) based on American farm capacity alone, it's just that nobody wants to pay for it.