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How did the Maya use corn, beans, and squash together?
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Origins of agriculture
Harvesting wheat on a farm in the grain belt near Saskatoon, Saskatchewan, Canada. A potash mine appears in the distant background.
The Maya utilized corn, beans, and squash through an agricultural system known as milpa, an intercropping practice that dates back approximately 3,500 years. This method involves planting the three crops together in mounds or hills, creating a symbiotic relationship that maximizes productivity without the need for synthetic fertilizers or mechanization.12
The three crops function as a cohesive unit:
- Corn: As the first to emerge, the cornstalks serve as a natural trellis for the beans to climb.1
- Beans: These plants provide natural fertilization by hosting nitrogen-fixing bacteria in their roots, which enriches the soil for the other crops.1
- Squash: Growing along the ground, the large, fan-shaped leaves of the squash act as a living mulch, retaining soil moisture and suppressing weeds.1
This polyculture approach enhances biodiversity, slows the spread of disease, and provides food security, as the failure of one crop does not necessarily result in the loss of the others. Nutritionally, the combination of these staples provides a balanced diet of starches, proteins, fats, and essential vitamins.1