Contextual data: Burundi - Sorghum - All years

‹ 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Burundi total 7,925 5,249 5,398 2,996 3,747 6,308 5,398 5,398 5,398 5,398
Bubanza   25 122 49 0 49 49 49 49 49 49  
Bujumbura Mairie   - - - - - - - - - -  
Bujumbura Rural   176 176 176 176 176 176 176 176 176 176  
Bururi   - - - - - - - - - -  
Cankuzo   123 123 123 123 123 123 123 123 123 123  
Cibitoke   14 6 14 21 14 14 14 14 14 14  
Gitega   146 146 146 146 146 146 146 146 146 146  
Karuzi   26 26 26 26 26 26 26 26 26 26  
Kayanza   24 53 53 17 90 79 53 53 53 53  
Kirundo   5,414 1,945 2,725 1,495 1,038 2,850 2,725 2,725 2,725 2,725  
Makamba   16 11 11 11 11 11 11 11 11 11  
Muramvya   - - - - - - - - - -  
Muyinga   133 286 286 442 286 397 286 286 286 286  
Mwaro   19 19 19 20 18 19 19 19 19 19  
Ngozi   84 45 45 42 45 10 45 45 45 45  
Rumonge   - - - - - - - - - -  
Rutana   1,319 1,885 1,319 71 1,319 2,002 1,319 1,319 1,319 1,319  
Ruyigi   406 406 406 406 406 406 406 406 406 406  

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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