Nigeria, Maize, 2020

Nigeria's estimated postharvest losses for maize in 2020 was 2,174,861 tonnes or 17.5% which had an estimated value of more than 918 million US dollar.

As for nutrition 7,590 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	12,403,300 tonnes
Estimated postharvest losses	17.5% / 2,174,861 tonnes / > 918 million USD

Production quantity	Estimated postharvest losses
82.4655 Production quantity: 12,403,300 tonnes	17.5 Estimated PHL: 2,174,861 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	85.88705 Remaining: 85.88705% Est. PHL: 2.37295%	2.37295 Remaining: 85.88705% Est. PHL: 2.37295%
Household-level storage	81.17073 Remaining: 81.17073% Est. PHL: 4.71632%	4.71632 Remaining: 81.17073% Est. PHL: 4.71632%
Transport to market	81.17073 Remaining: 81.17073% Est. PHL: 0%	0 Remaining: 81.17073% Est. PHL: 0%
Market storage	81.17073 Remaining: 81.17073% Est. PHL: 0%	0 Remaining: 81.17073% 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

9,131,146

people, 4.7%

Children 1-3

21,090,513

children, 106.9%

Pregnant women 19-30

7,634,084

women, 327.4%

Men 31-50

6,758,286

men, 35.4%

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