The Conuco: Taíno Agricultural System

The conuco was the agricultural foundation of Taíno civilization in Boriquén. Developed during the Ostionoid period (ca. 800 CE) and refined through centuries of practice, the system centered on raised earthen mounds arranged in rows across cleared fields. Each mound was constructed from a mixture of crop residue, organic matter, and mulch for aeration, creating nutrient-dense, microbial-rich soil.

The staple crop was yuca (cassava), grown in both sweet and bitter varieties. Bitter cassava required complex processing to remove toxic hydrocyanic acid: women grated the root, squeezed it through a woven strainer called a cibucán, then ground the dried pulp into flour for casabe bread—a flatbread that could be stored for months. Additional crops grown in polyculture included batata (sweet potato), yams, maize, beans, peanuts, arrowroot, peppers (ají), tobacco, and cotton.

Planting was done using a coa, a digging stick made from hardwood. Women designed and implemented planting and harvesting plans while men typically assisted in clearing and constructing the conuco beds. The intercropping approach minimized pest damage and preserved soil fertility across growing seasons.

A 2023 SARE (Sustainable Agriculture Research and Education) grant project is actively studying whether Taíno conuco methods could help feed modern Puerto Rico and mitigate erosion and climate change impacts—a recognition that this pre-colonial knowledge was not primitive but sophisticated and potentially superior to modern monoculture for tropical island conditions.