Why mix earthworms and cocoa shells?
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Why mix earthworms and cocoa shells?

Earthworms are loved by farmers across the world, because of their ability to rejuvenate the soil.

In Ivory Coast, a microbiologist-turned-entrepreneur has seen an opportunity to make a unique compost using manure, earthworms and the discarded shells from the country's biggest export - cocoa.

Africa Business Report went along to find out more.

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