Botswana, Maize, 2007

Botswana's estimated postharvest losses for maize in 2007 was 1,208 tonnes or 14.9%.

As for nutrition 4 billion kcal were lost, which is the equivalent of more than 4 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 8,131 tonnes
Estimated postharvest losses 14.9% / 1,208 tonnes
Production quantity Estimated postharvest losses
85.1427 Production quantity: 8,131 tonnes 14.9 Estimated PHL: 1,208 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 95.62705 Remaining: 95.62705%
Est. PHL: 4.37295% 		4.37295 Remaining: 95.62705%
Est. PHL: 4.37295%
Further drying 92.01687 Remaining: 92.01687%
Est. PHL: 3.61018% 		3.61018 Remaining: 92.01687%
Est. PHL: 3.61018%
Threshing and Shelling 89.97098 Remaining: 89.97098%
Est. PHL: 2.04589% 		2.04589 Remaining: 89.97098%
Est. PHL: 2.04589%
Transport from field 87.95674 Remaining: 87.95674%
Est. PHL: 2.01424% 		2.01424 Remaining: 87.95674%
Est. PHL: 2.01424%
Household-level storage 83.71683 Remaining: 83.71683%
Est. PHL: 4.23991% 		4.23991 Remaining: 83.71683%
Est. PHL: 4.23991%
Transport to market 82.62672 Remaining: 82.62672%
Est. PHL: 1.09011% 		1.09011 Remaining: 82.62672%
Est. PHL: 1.09011%
Market storage 79.97672 Remaining: 79.97672%
Est. PHL: 2.65% 		2.65 Remaining: 79.97672%
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

4,738

people, 0.2%

Children 1-3

11,648

children, 7.5%

Pregnant women 19-30

4,216

women, 27.3%

Men 31-50

3,732

men, 1.2%

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