Based on a study’s finding led by the University of Sussex and the United Kingdom, including anthropologists and soil scientists from Aarhus Universities, Cornell, Accra and the Institute of Development Studies. It has been established that a 700-year-old soil enrichment technique by farmers living in Liberia and Ghana could boost soil fertility ten folds and mitigate climate change effect such as food insecurity.
This 700-year-old soil enrichment technique entails, converting the nutrient-poor rainforest soil into a fertile farmland by adding charcoal and kitchen waste to the land. Over time, the soil became carbon-rich and with an enduring fertility, something the researchers have since taken to referring to as ‘African Dark Earths’.
The researchers studied some 150 sites spread out across northwest Liberia and 27 sites in Ghana. They found the soils to contain between 200-300 percent more organic carbon than the rest of the soils, which the farmers had not enriched with charcoal and kitchen waste. The also discovered that the enriched soils were capable of sustaining a more intensive type of farming than the rest.
The study entitled ‘Indigenous African soil enrichment as a climate-smart sustainable agriculture …read more