How were the Incas able to grow crop?

The Incas utilized advanced agricultural techniques to grow crops in the challenging Andean environment. They built terraced fields to maximize arable land on steep slopes, which helped with irrigation and prevented soil erosion. Additionally, they employed a sophisticated irrigation system using canals and aqueducts to ensure a steady water supply. The Incas also practiced crop rotation and selected diverse crops, including potatoes and maize, to adapt to varying climates and altitudes.