Kenya, Maize, 2009

Kenya's estimated postharvest losses for maize in 2009 was 453,017 tonnes or 18.5% which had an estimated value of more than 164 million US dollar, which corresponds to 1.9% of national agricultural GDP.

As for nutrition 1,639 billion kcal were lost, which is the equivalent of more than 1 million 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 Rift Valley.

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 3243399
2012 3766160
2013 3134722
2014 3134722
2015 3134722
2016 3134722
2017 3134722
2018 3134722
2019 3961053
2020 3619374
Produced 2,442,823 tonnes
Estimated postharvest losses 18.5% / 453,017 tonnes / > 164 million USD
Production quantity Estimated postharvest losses
81.4552 Production quantity: 2,442,823 tonnes 18.5 Estimated PHL: 453,017 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 92.2291 Remaining: 92.2291%
Est. PHL: 7.7709%
7.7709 Remaining: 92.2291%
Est. PHL: 7.7709%
Further drying 88.2291 Remaining: 88.2291%
Est. PHL: 4%
4 Remaining: 88.2291%
Est. PHL: 4%
Threshing and Shelling 86.9091 Remaining: 86.9091%
Est. PHL: 1.32%
1.32 Remaining: 86.9091%
Est. PHL: 1.32%
Transport from field 84.53529 Remaining: 84.53529%
Est. PHL: 2.37381%
2.37381 Remaining: 84.53529%
Est. PHL: 2.37381%
Household-level storage 79.51282 Remaining: 79.51282%
Est. PHL: 5.02247%
5.02247 Remaining: 79.51282%
Est. PHL: 5.02247%
Transport to market 77.86282 Remaining: 77.86282%
Est. PHL: 1.65%
1.65 Remaining: 77.86282%
Est. PHL: 1.65%
Market storage 75.21282 Remaining: 75.21282%
Est. PHL: 2.65%
2.65 Remaining: 75.21282%
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

1,929,719

people, 3.8%


Children 1-3

4,556,730

children, 105.5%


Pregnant women 19-30

1,649,389

women, 559.2%


Men 31-50

1,460,168

men, 27.1%

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