Ghana, Maize, 2001

Ghana's estimated postharvest losses for maize in 2001 was 168,347 tonnes or 17.9%.

As for nutrition 587 billion kcal were lost, which is the equivalent of more than 687 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 Eastern.

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 937,973 tonnes
Estimated postharvest losses 17.9% / 168,347 tonnes
Production quantity Estimated postharvest losses
82.0521 Production quantity: 937,973 tonnes 17.9 Estimated PHL: 168,347 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 85.8981 Remaining: 85.8981%
Est. PHL: 2.3619% 		2.3619 Remaining: 85.8981%
Est. PHL: 2.3619%
Household-level storage 80.69339 Remaining: 80.69339%
Est. PHL: 5.20471% 		5.20471 Remaining: 80.69339%
Est. PHL: 5.20471%
Transport to market 80.69339 Remaining: 80.69339%
Est. PHL: 0% 		0 Remaining: 80.69339%
Est. PHL: 0%
Market storage 80.69339 Remaining: 80.69339%
Est. PHL: 0% 		0 Remaining: 80.69339%
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

687,752

people, 2.3%

Children 1-3

1,632,528

children, 65.4%

Pregnant women 19-30

590,922

women, 277.9%

Men 31-50

523,131

men, 16.9%

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