The clay soils of the Amazon rainforest are the most nutrient poor on Earth, except for “terra preta” a dark soil with bone, pottery, manure, compost, and a high-carbon charcoal. These rich soils are anthropogenic, made by a mostly forgotten civilization thousands of years ago. pic.twitter.com/eecYGTjC3x
— Hernan Cortes (@CyberPunkCortes) December 12, 2022
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