Amish farmer never plants corn on the same field two years in a row. Never. A 300-year-old rule.
Four-Year Cycle
Year 1: corn (takes nitrogen from soil). Year 2: wheat or oats (less demanding). Year 3: clover or alfalfa (returns nitrogen). Year 4: pasture (cows fertilize with manure). Then repeat.
Result
Amish fields produce crops for 300 years. Industrial farms exhaust soil in 30. Difference: patience. Amish waits 4 years. Agribusiness wants it today.