Nigeria, Maize, 2022

Nigeria's estimated postharvest losses for maize in 2022 was 1,374,693 tonnes or 17.4%.

As for nutrition 4,797 billion kcal were lost, which is the equivalent of more than 5 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	7,886,259 tonnes
Estimated postharvest losses	17.4% / 1,374,693 tonnes

Production quantity	Estimated postharvest losses
82.5685 Production quantity: 7,886,259 tonnes	17.4 Estimated PHL: 1,374,693 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	85.88741 Remaining: 85.88741% Est. PHL: 2.37259%	2.37259 Remaining: 85.88741% Est. PHL: 2.37259%
Household-level storage	81.2898 Remaining: 81.2898% Est. PHL: 4.59761%	4.59761 Remaining: 81.2898% Est. PHL: 4.59761%
Transport to market	81.2898 Remaining: 81.2898% Est. PHL: 0%	0 Remaining: 81.2898% Est. PHL: 0%
Market storage	81.2898 Remaining: 81.2898% Est. PHL: 0%	0 Remaining: 81.2898% 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

5,771,644

people, 2.9%

Children 1-3

13,330,957

children, 67.6%

Pregnant women 19-30

4,825,376

women, 206.9%

Men 31-50

4,271,798

men, 22.4%

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