Senegal, Maize, 2007

Senegal's estimated postharvest losses for maize in 2007 was 33,501 tonnes or 15.7%.

As for nutrition 116 billion kcal were lost, which is the equivalent of more than 140 thousand people, in terms of annual nutritional dietary energy requirements. In the value chain, the majority of the loss is estimated to be happening at Harvesting/field drying, Further drying, and then Market storage. Highest estimated postharvest maize losses in tonnes were estimated to occur in Kolda.

To view the list of studies used to estimate these losses, please see the References tab.

Production quantity and estimated postharvest losses

  • Production quantity (tonnes)
  • Estimated postharvest losses (tonnes)
2011–2021
2011 164305
2012 124092
2013 238961
2014 225902
2015 178733
2016 304298
2017 400461
2018 417261
2019 480141
2020 339699
Produced 213,011 tonnes
Estimated postharvest losses 15.7% / 33,501 tonnes
Production quantity Estimated postharvest losses
84.2726 Production quantity: 213,011 tonnes 15.7 Estimated PHL: 33,501 tonnes

See full postharvest losses data table with estimated losses in percentage › | tonnes ›

Value chain

Production quantity and estimated postharvest losses in % per value chain step. Please note that once loss has occurred at harvesting, the percentage loss in the next stage is a percentage of what remained, not of the original amount.

  • Estimated % of crop left
  • Estimated % of crop lost
Amount remaining(%) Estimated postharvest loss(%)
Production 100 Remaining: 100%
Est. PHL: 0%
0 Remaining: 100%
Est. PHL: 0%
Harvesting/field drying 93.58 Remaining: 93.58%
Est. PHL: 6.42%
6.42 Remaining: 93.58%
Est. PHL: 6.42%
Further drying 89.58 Remaining: 89.58%
Est. PHL: 4%
4 Remaining: 89.58%
Est. PHL: 4%
Threshing and Shelling 88.26 Remaining: 88.26%
Est. PHL: 1.32%
1.32 Remaining: 88.26%
Est. PHL: 1.32%
Transport from field 85.86594 Remaining: 85.86594%
Est. PHL: 2.39406%
2.39406 Remaining: 85.86594%
Est. PHL: 2.39406%
Household-level storage 83.41881 Remaining: 83.41881%
Est. PHL: 2.44713%
2.44713 Remaining: 83.41881%
Est. PHL: 2.44713%
Transport to market 81.76881 Remaining: 81.76881%
Est. PHL: 1.65%
1.65 Remaining: 81.76881%
Est. PHL: 1.65%
Market storage 79.11881 Remaining: 79.11881%
Est. PHL: 2.65%
2.65 Remaining: 79.11881%
Est. PHL: 2.65%

See full value chain data table with estimated losses in percentage › | tonnes ›

Nutrition

Number of people whose annual dietary requirements (in terms of energy, kcal) could have been met by consuming the maize that was lost postharvest, and what % of the focal group of the population this number equates to.

Total number

140,298

people, 0.9%


Children 1-3

324,873

children, 20.6%


Pregnant women 19-30

117,594

women, 79.6%


Men 31-50

104,103

men, 6.9%

See full nutritional impact data for Children 1–3 › | Pregnant women 19–30 › | Men 31–50 ›