How did Maya agriculture support the growth of cities?

Maya agriculture was fundamental to the development and sustenance of their urban centers, providing the food security necessary to support large populations. While the Maya practiced slash-and-burn agriculture—a method that typically supports widely dispersed settlements—they also employed advanced techniques that allowed for greater population concentration and urban growth.12

Key agricultural strategies included:

• The Milpa System: The Maya utilized a symbiotic interplanting method known as milpa, which combined corn, beans, and squash. This polyculture approach was highly efficient, as the crops provided mutual benefits: corn provided a trellis for beans, beans added nitrogen to the soil, and squash leaves retained soil moisture and suppressed weeds.3
• Advanced Infrastructure: To maximize land productivity, the Maya implemented sophisticated irrigation and terracing systems. In many lowland areas, they also utilized raised-field farming, which enabled intensive cultivation in environments that might otherwise have limited urban expansion.2415
• Crop Diversity: Beyond the primary staples, the Maya cultivated cassava and various other crops, ensuring a stable and varied food supply that could be stored in granaries to support the governance, religious, and trade functions of their cities.125