Botswana, Maize, 2004

Botswana's estimated postharvest losses for maize in 2004 was 1,970 tonnes or 15.9%.

As for nutrition 6 billion kcal were lost, which is the equivalent of more than 7 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 Central.

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 12,390 tonnes
Estimated postharvest losses 15.9% / 1,970 tonnes
Production quantity Estimated postharvest losses
84.1023 Production quantity: 12,390 tonnes 15.9 Estimated PHL: 1,970 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 94.68329 Remaining: 94.68329%
Est. PHL: 5.31671% 		5.31671 Remaining: 94.68329%
Est. PHL: 5.31671%
Further drying 90.89548 Remaining: 90.89548%
Est. PHL: 3.78781% 		3.78781 Remaining: 90.89548%
Est. PHL: 3.78781%
Threshing and Shelling 89.17962 Remaining: 89.17962%
Est. PHL: 1.71586% 		1.71586 Remaining: 89.17962%
Est. PHL: 1.71586%
Transport from field 86.98168 Remaining: 86.98168%
Est. PHL: 2.19794% 		2.19794 Remaining: 86.98168%
Est. PHL: 2.19794%
Household-level storage 82.82946 Remaining: 82.82946%
Est. PHL: 4.15222% 		4.15222 Remaining: 82.82946%
Est. PHL: 4.15222%
Transport to market 81.57935 Remaining: 81.57935%
Est. PHL: 1.25011% 		1.25011 Remaining: 81.57935%
Est. PHL: 1.25011%
Market storage 78.92935 Remaining: 78.92935%
Est. PHL: 2.65% 		2.65 Remaining: 78.92935%
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

7,726

people, 0.3%

Children 1-3

18,992

children, 12.2%

Pregnant women 19-30

6,874

women, 44.5%

Men 31-50

6,086

men, 1.9%

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