Nigeria, Maize, 2003

Nigeria's estimated postharvest losses for maize in 2003 was 985,864 tonnes or 17.4%.

As for nutrition 3,440 billion kcal were lost, which is the equivalent of more than 4 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 5,657,090 tonnes
Estimated postharvest losses 17.4% / 985,864 tonnes
Production quantity Estimated postharvest losses
82.5729 Production quantity: 5,657,090 tonnes 17.4 Estimated PHL: 985,864 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 85.88663 Remaining: 85.88663%
Est. PHL: 2.37337% 		2.37337 Remaining: 85.88663%
Est. PHL: 2.37337%
Household-level storage 81.2949 Remaining: 81.2949%
Est. PHL: 4.59173% 		4.59173 Remaining: 81.2949%
Est. PHL: 4.59173%
Transport to market 81.2949 Remaining: 81.2949%
Est. PHL: 0% 		0 Remaining: 81.2949%
Est. PHL: 0%
Market storage 81.2949 Remaining: 81.2949%
Est. PHL: 0% 		0 Remaining: 81.2949%
Est. PHL: 0%

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

4,139,149

people, 2.1%

Children 1-3

9,560,330

children, 48.5%

Pregnant women 19-30

3,460,530

women, 148.4%

Men 31-50

3,063,531

men, 16.0%

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