Contextual data: Democratic Republic of the Congo - Maize - All years

‹ 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Democratic Republic of the Congo total 1,986,099 2,035,345 2,039,008 2,078,179 2,186,318 2,186,055 2,138,962 1,592,911 1,592,911 1,592,911
Bandundu   316,167 324,007 324,590 332,484 340,636 348,990 357,549 254,198 254,198 254,198  
Équateur   237,644 243,537 243,975 252,532 258,721 265,065 268,686 191,463 191,463 191,463  
Kasaï Occidental   296,308 303,655 304,202 318,731 379,184 334,557 343,162 242,365 242,365 242,365  
Kasaï Oriental   336,055 344,388 345,008 361,487 370,352 379,435 290,566 266,955 266,955 266,955  
Katanga   414,518 424,796 425,561 391,195 403,275 413,165 423,298 324,373 324,373 324,373  
Kinshasa Rural   22,800 23,365 23,407 24,525 25,126 25,742 26,373 18,445 18,445 18,445  
Kongo Central   33,217 34,040 34,101 35,724 36,605 37,552 38,422 26,828 26,828 26,828  
Maniema   56,424 57,823 57,927 63,634 65,194 66,793 68,431 46,262 46,262 46,262  
Nord-Kivu   77,560 79,483 79,626 87,470 89,615 91,813 94,065 63,583 63,583 63,583  
Orientale   168,178 172,348 172,658 180,409 186,152 190,714 195,391 136,154 136,154 136,154  
Sud-Kivu   27,228 27,903 27,953 29,988 31,458 32,229 33,019 22,285 22,285 22,285  

Data version 2.19.3

Contextual data

Collected data

Values obtained from primary and secondary sources

Approximated data

Values approximated based on other data for same location

–No data

Not applicable or no data available

LGB Larger Grain Borer (Prostephanus truncatus) read more ›

Storage beetle pest of maize and dried cassava

Contextual data

Contextual factors relate to local conditions and practices that may affect losses on a seasonal or annual basis, such as weather, pest incidence, grain drying conditions and the length of household-level storage.

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APHLIS network and team members collect this data from official sources (e.g. ministries of agriculture and statistics offices), published research studies and national surveys etc, or by interviewing farmers, extension workers or other key informants. This data enables APHLIS to apply the relevant loss figures from the PHL profiles depending on seasonal circumstances, and convert percentage losses into absolute losses (in tonnes) using the production figures. Based on the postharvest loss profiles and contextual factors, APHLIS estimates postharvest losses at the provincial, national and regional levels.

The contextual dataset includes production quantities (t), whether it rained at harvest, the percentage of the crop marketed during first 3 months after harvest, household-level storage duration, and presence of specific pests (for example the larger grain borer, LGB, Prostephanus truncatus) which are used to contextualise the loss profile for each year. The importance of different types of contextual factors may vary between crops, and data for the most relevant contextual factors is shown and used in the loss estimate calculations.

For specific crop, location, year combinations where contextual data is not available, approximated data has been used. This is calculated based on the contextualised data which has been provided for the same location. Approximated contextual data is shown in grey. 

Read more about how APHLIS estimates losses ›

Contextual factors

Production quantity (t) the quantity of grain produced on small and large farms for each growing season.

Rain at harvest whether or not there is damp weather at time of harvest which would make drying the grain difficult. If there is rain at harvest then the value for the harvesting link in the PHL profile is increased.

% sold during first 3 months the proportion of grain that is marketed within the first three months, i.e. that will not enter farm storage for any significant time. This proportion of the production will not be subject to farm storage losses but instead will be affected by transport and market storage losses.

Household-level storage duration (months) the length of time that grain was stored at household-level. If household-level storage is less than 3 months then household-level storage loss is reduced to 0%, if 3 to 6 months it will be only 50% of the loss profile figure, or if 6 months or more than 100% of the household-level storage loss is applied.

LGB presence in the case of maize, whether or not LGB (the larger grain borer, Prostephanus truncatus) is expected to be a significant pest. If LGB is a serious pest in that particular season then storage losses are multiplied by 2.

Season

In locations where there is more than one growing season each year, seasonal production data for each of the growing seasons is inputted. These are labelled as first, second, third season.

Farm type

In locations where there are both smallholder farms and large-scale commercial farms, the contextual data is shown for each of these types.

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