Olive oil byproduct is proven useful as fertilizer

10/17/2011 | Olive Oil Times

Alperujo, the byproduct of olive oil extraction through centrifugation, can be reused as an organic fertilizer, recent studies show. Alperujo is rich in nitrogen, potassium and other organic materials. However, the material is rich in polyphenols and must undergo a series of composting processes before being deemed safe for agricultural use.

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