Zambia, Maize, 2011

Zambia's estimated postharvest losses for maize in 2011 was 514,678 tonnes or 17.0% which had an estimated value of more than 121 million US dollar, which corresponds to 5.4% of national agricultural GDP.

As for nutrition 1,785 billion kcal were lost, which is the equivalent of more than 2 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 Southern.

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 3020380
2012 2852688
2013 2532800
2014 3350672
2015 2618220
2016 2873053
2017 3606550
2018 2394908
2019 2122644
2020 2122644
Produced 3,020,380 tonnes
Estimated postharvest losses 17.0% / 514,678 tonnes / > 121 million USD
Production quantity Estimated postharvest losses
82.9598 Production quantity: 3,020,380 tonnes 17.0 Estimated PHL: 514,678 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 93.78394 Remaining: 93.78394%
Est. PHL: 6.21606%
6.21606 Remaining: 93.78394%
Est. PHL: 6.21606%
Further drying 89.82354 Remaining: 89.82354%
Est. PHL: 3.9604%
3.9604 Remaining: 89.82354%
Est. PHL: 3.9604%
Threshing and Shelling 88.42953 Remaining: 88.42953%
Est. PHL: 1.39401%
1.39401 Remaining: 88.42953%
Est. PHL: 1.39401%
Transport from field 86.05542 Remaining: 86.05542%
Est. PHL: 2.37411%
2.37411 Remaining: 86.05542%
Est. PHL: 2.37411%
Household-level storage 81.5727 Remaining: 81.5727%
Est. PHL: 4.48272%
4.48272 Remaining: 81.5727%
Est. PHL: 4.48272%
Transport to market 80.00034 Remaining: 80.00034%
Est. PHL: 1.57236%
1.57236 Remaining: 80.00034%
Est. PHL: 1.57236%
Market storage 77.35034 Remaining: 77.35034%
Est. PHL: 2.65%
2.65 Remaining: 77.35034%
Est. PHL: 2.65%

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

2,157,683

people, 12.3%


Children 1-3

4,962,438

children, 280.3%


Pregnant women 19-30

1,796,242

women, 1,625.8%


Men 31-50

1,590,174

men, 99.2%

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