South Africa, Maize, 2010

South Africa's estimated postharvest losses for maize in 2010 was 116,770 tonnes or 18.2% which had an estimated value of more than 19 million US dollar, which corresponds to 0.2% of national agricultural GDP.

As for nutrition 405 billion kcal were lost, which is the equivalent of more than 453 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 Cape.

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 12531310
2012 2355586
2013 12427938
2014 2355586
2015 2355586
2016 2355586
2017 2355586
2018 2355586
2019 2355586
2020 2355586
Produced 639,998 tonnes
Estimated postharvest losses 18.2% / 116,770 tonnes / > 19 million USD
Production quantity Estimated postharvest losses
81.7546 Production quantity: 639,998 tonnes 18.2 Estimated PHL: 116,770 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 93.6195 Remaining: 93.6195%
Est. PHL: 6.3805%
6.3805 Remaining: 93.6195%
Est. PHL: 6.3805%
Further drying 89.62972 Remaining: 89.62972%
Est. PHL: 3.98978%
3.98978 Remaining: 89.62972%
Est. PHL: 3.98978%
Threshing and Shelling 88.29062 Remaining: 88.29062%
Est. PHL: 1.3391%
1.3391 Remaining: 88.29062%
Est. PHL: 1.3391%
Transport from field 85.88447 Remaining: 85.88447%
Est. PHL: 2.40615%
2.40615 Remaining: 85.88447%
Est. PHL: 2.40615%
Household-level storage 80.30903 Remaining: 80.30903%
Est. PHL: 5.57544%
5.57544 Remaining: 80.30903%
Est. PHL: 5.57544%
Transport to market 79.30903 Remaining: 79.30903%
Est. PHL: 1%
1 Remaining: 79.30903%
Est. PHL: 1%
Market storage 76.65903 Remaining: 76.65903%
Est. PHL: 2.65%
2.65 Remaining: 76.65903%
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

453,342

people, 0.8%


Children 1-3

1,125,879

children, 32.9%


Pregnant women 19-30

407,532

women, 201.1%


Men 31-50

360,779

men, 4.7%

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