What zones are the most productive for growing crops?

The most productive zones for growing crops are typically found in regions with temperate climates, fertile soil, and adequate rainfall. These include the Midwest United States, parts of Europe, and regions in Asia such as the Indo-Gangetic Plain. Additionally, areas with rich alluvial soils and favorable conditions for irrigation, such as river deltas, also support high agricultural productivity. Overall, the best zones combine favorable climate, soil quality, and access to water resources.