Nigeria, Maize, 2002

Nigeria's estimated postharvest losses for maize in 2002 was 967,121 tonnes or 17.4%.

As for nutrition 3,375 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 5,561,360 tonnes
Estimated postharvest losses 17.4% / 967,121 tonnes
Production quantity Estimated postharvest losses
82.61 Production quantity: 5,561,360 tonnes 17.4 Estimated PHL: 967,121 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 85.88701 Remaining: 85.88701%
Est. PHL: 2.37299% 		2.37299 Remaining: 85.88701%
Est. PHL: 2.37299%
Household-level storage 81.33773 Remaining: 81.33773%
Est. PHL: 4.54928% 		4.54928 Remaining: 81.33773%
Est. PHL: 4.54928%
Transport to market 81.33773 Remaining: 81.33773%
Est. PHL: 0% 		0 Remaining: 81.33773%
Est. PHL: 0%
Market storage 81.33773 Remaining: 81.33773%
Est. PHL: 0% 		0 Remaining: 81.33773%
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

4,060,453

people, 2.1%

Children 1-3

9,378,563

children, 47.5%

Pregnant women 19-30

3,394,737

women, 145.6%

Men 31-50

3,005,285

men, 15.7%

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