Botswana, Maize, 2008

Botswana's estimated postharvest losses for maize in 2008 was 2,681 tonnes or 18.1%.

As for nutrition 9 billion kcal were lost, which is the equivalent of more than 10 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 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 39370
2012 12840
2013 7794
2014 35640
2015 7576
2016 17377
2017 20956
2018 17377
2019 8077
2020 17377
Produced 14,802 tonnes
Estimated postharvest losses 18.1% / 2,681 tonnes
Production quantity Estimated postharvest losses
81.8889 Production quantity: 14,802 tonnes 18.1 Estimated PHL: 2,681 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 92.16642 Remaining: 92.16642%
Est. PHL: 7.83358%
7.83358 Remaining: 92.16642%
Est. PHL: 7.83358%
Further drying 88.3917 Remaining: 88.3917%
Est. PHL: 3.77472%
3.77472 Remaining: 88.3917%
Est. PHL: 3.77472%
Threshing and Shelling 86.65149 Remaining: 86.65149%
Est. PHL: 1.74021%
1.74021 Remaining: 86.65149%
Est. PHL: 1.74021%
Transport from field 84.46706 Remaining: 84.46706%
Est. PHL: 2.18443%
2.18443 Remaining: 84.46706%
Est. PHL: 2.18443%
Household-level storage 80.36611 Remaining: 80.36611%
Est. PHL: 4.10095%
4.10095 Remaining: 80.36611%
Est. PHL: 4.10095%
Transport to market 79.10797 Remaining: 79.10797%
Est. PHL: 1.25814%
1.25814 Remaining: 79.10797%
Est. PHL: 1.25814%
Market storage 76.45797 Remaining: 76.45797%
Est. PHL: 2.65%
2.65 Remaining: 76.45797%
Est. PHL: 2.65%

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

10,515

people, 0.5%


Children 1-3

25,848

children, 16.5%


Pregnant women 19-30

9,356

women, 60.5%


Men 31-50

8,283

men, 2.6%

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