Botswana, Maize, 2005

Botswana's estimated postharvest losses for maize in 2005 was 2,631 tonnes or 16.0%.

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 16,442 tonnes
Estimated postharvest losses 16.0% / 2,631 tonnes
Production quantity Estimated postharvest losses
84.001 Production quantity: 16,442 tonnes 16.0 Estimated PHL: 2,631 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 94.59538 Remaining: 94.59538%
Est. PHL: 5.40462% 		5.40462 Remaining: 94.59538%
Est. PHL: 5.40462%
Further drying 90.79084 Remaining: 90.79084%
Est. PHL: 3.80454% 		3.80454 Remaining: 90.79084%
Est. PHL: 3.80454%
Threshing and Shelling 89.10612 Remaining: 89.10612%
Est. PHL: 1.68472% 		1.68472 Remaining: 89.10612%
Est. PHL: 1.68472%
Transport from field 86.89091 Remaining: 86.89091%
Est. PHL: 2.21521% 		2.21521 Remaining: 86.89091%
Est. PHL: 2.21521%
Household-level storage 82.73946 Remaining: 82.73946%
Est. PHL: 4.15145% 		4.15145 Remaining: 82.73946%
Est. PHL: 4.15145%
Transport to market 81.44574 Remaining: 81.44574%
Est. PHL: 1.29372% 		1.29372 Remaining: 81.44574%
Est. PHL: 1.29372%
Market storage 78.79574 Remaining: 78.79574%
Est. PHL: 2.65% 		2.65 Remaining: 78.79574%
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

10,318

people, 0.4%

Children 1-3

25,363

children, 16.2%

Pregnant women 19-30

9,181

women, 59.4%

Men 31-50

8,128

men, 2.6%

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