Ghana, Maize, 2003

Ghana's estimated postharvest losses for maize in 2003 was 231,374 tonnes or 18.0%.

As for nutrition 807 billion kcal were lost, which is the equivalent of more than 945 thousand 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 Brong Ahafo.

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 1699135
2012 1949897
2013 1764477
2014 1768576
2015 1691642
2016 1721911
2017 2003109
2018 2306384
2019 1539485
2020 1539485
Produced 1,288,600 tonnes
Estimated postharvest losses 18.0% / 231,374 tonnes
Production quantity Estimated postharvest losses
82.0445 Production quantity: 1,288,600 tonnes 18.0 Estimated PHL: 231,374 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 85.89886 Remaining: 85.89886%
Est. PHL: 2.36114% 		2.36114 Remaining: 85.89886%
Est. PHL: 2.36114%
Household-level storage 80.68468 Remaining: 80.68468%
Est. PHL: 5.21418% 		5.21418 Remaining: 80.68468%
Est. PHL: 5.21418%
Transport to market 80.68468 Remaining: 80.68468%
Est. PHL: 0% 		0 Remaining: 80.68468%
Est. PHL: 0%
Market storage 80.68468 Remaining: 80.68468%
Est. PHL: 0% 		0 Remaining: 80.68468%
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

945,240

people, 3.2%

Children 1-3

2,243,733

children, 89.9%

Pregnant women 19-30

812,159

women, 382.0%

Men 31-50

718,986

men, 23.2%

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