Up to 6.6 per cent of fresh cassava tubers (l.) are lost in harvesting and storage at the farm;
Photo: A. E. Oguntade

03.04.2013

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In order to evaluate losses in the value chains of maize and cassava, GIZ (Deutsche Gesellschaft für Internationale Zusammenarbeit) conducted two surveys in 2012/2013. They comprise (1) an estimate of losses in terms of volume and money and recommended countermeasures, and (2) a calculation of the ecological footprint resulting from these losses through the unnecessary use of soil and water, loss of biodiversity and emission of greenhouse gases.

Where are the biggest losses?

With its annual yield of around 40 million tons, Nigeria is the world’s largest producer of cassava. The lion’s share is grown by smallholders. The most important value-added chains are the production of Gari (fermented cassava) for local food supplies and the manufacture of industrial starch. Broken down in terms of the individual stages in the production processes, the losses are as follows: 

  • an up to 6.6 per cent loss of fresh cassava tubers in harvesting and storage at the farm;
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