South Africa, Maize, 2009

South Africa's estimated postharvest losses for maize in 2009 was 124,978 tonnes or 18.4% which had an estimated value of more than 23 million US dollar, which corresponds to 0.3% of national agricultural GDP.

As for nutrition 433 billion kcal were lost, which is the equivalent of more than 485 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 680,762 tonnes
Estimated postharvest losses 18.4% / 124,978 tonnes / > 23 million USD
Production quantity Estimated postharvest losses
81.6414 Production quantity: 680,762 tonnes 18.4 Estimated PHL: 124,978 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 93.62677 Remaining: 93.62677%
Est. PHL: 6.37323%
6.37323 Remaining: 93.62677%
Est. PHL: 6.37323%
Further drying 89.63587 Remaining: 89.63587%
Est. PHL: 3.9909%
3.9909 Remaining: 89.63587%
Est. PHL: 3.9909%
Threshing and Shelling 88.29887 Remaining: 88.29887%
Est. PHL: 1.337%
1.337 Remaining: 88.29887%
Est. PHL: 1.337%
Transport from field 85.89156 Remaining: 85.89156%
Est. PHL: 2.40731%
2.40731 Remaining: 85.89156%
Est. PHL: 2.40731%
Household-level storage 80.18011 Remaining: 80.18011%
Est. PHL: 5.71145%
5.71145 Remaining: 80.18011%
Est. PHL: 5.71145%
Transport to market 79.18011 Remaining: 79.18011%
Est. PHL: 1%
1 Remaining: 79.18011%
Est. PHL: 1%
Market storage 76.53011 Remaining: 76.53011%
Est. PHL: 2.65%
2.65 Remaining: 76.53011%
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

485,208

people, 0.8%


Children 1-3

1,205,019

children, 35.2%


Pregnant women 19-30

436,178

women, 215.2%


Men 31-50

386,139

men, 5.0%

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