I mean, modern corn is fucking astounding from a productivity standpoint. Pre-industrialization corn and wheat yielded something like 10-20 bushels per acre.

I mean, modern corn is fucking astounding from a productivity standpoint. Pre-industrialization corn and wheat yielded something like 10-20 bushels per acre. I have a book from the turn of the century I keep for the cover titled "How to Grow 100 Bushel Corn in Poor Soil" (spoiler: guano), and now corn harvests are something like 180 bushels an acre and wheat something like 60. There's a lot of reasons for this (mechanization, fertilizers, pesticides, selective breeding and genetic engineering) but the short story is when you talk "traditional" versus "modern" agriculture, you're talking an order of magnitude productivity increases on a per-acre basis, along with another order-of-magnitude increase on the acres worked per farmer.