Nigeria, Maize, 2019

Nigeria's estimated postharvest losses for maize in 2019 was 2,209,446 tonnes or 17.5% which had an estimated value of more than 752 million US dollar, which corresponds to 0.8% of national agricultural GDP.

As for nutrition 7,710 billion kcal were lost, which is the equivalent of more than 9 million 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, Household-level storage, and then Further drying. Highest estimated postharvest maize losses in tonnes were estimated to occur in Kaduna.

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 8878456
2012 8694900
2013 7886259
2014 10901600
2015 9540190
2016 7886259
2017 7886259
2018 7886259
2019 12599040
2020 12403300
Produced 12,599,040 tonnes
Estimated postharvest losses 17.5% / 2,209,446 tonnes / > 752 million USD
Production quantity Estimated postharvest losses
82.4634 Production quantity: 12,599,040 tonnes 17.5 Estimated PHL: 2,209,446 tonnes

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

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 85.88711 Remaining: 85.88711%
Est. PHL: 2.37289%
2.37289 Remaining: 85.88711%
Est. PHL: 2.37289%
Household-level storage 81.16832 Remaining: 81.16832%
Est. PHL: 4.71879%
4.71879 Remaining: 81.16832%
Est. PHL: 4.71879%
Transport to market 81.16832 Remaining: 81.16832%
Est. PHL: 0%
0 Remaining: 81.16832%
Est. PHL: 0%
Market storage 81.16832 Remaining: 81.16832%
Est. PHL: 0%
0 Remaining: 81.16832%
Est. PHL: 0%

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

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

9,276,352

people, 4.7%


Children 1-3

21,425,899

children, 108.6%


Pregnant women 19-30

7,755,483

women, 332.6%


Men 31-50

6,865,758

men, 36.0%

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