Contextual data: Burkina Faso - Maize - All years

‹ 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 ›
Burkina Faso total 665,509 481,475 799,052 866,664 533,873 1,013,628 894,552 1,133,474 1,076,747 1,556,315
Boucle du Mouhoun   115,385 49,799 151,675 169,755 80,842 150,744 154,834 206,482 182,011 218,213  
Cascades   90,811 61,385 83,286 102,209 79,197 142,136 111,832 125,082 146,829 176,017  
Centre   4,108 3,290 5,075 5,336 3,080 6,504 6,163 7,797 8,620 15,561  
Centre-Est   30,816 27,322 38,635 39,334 26,320 47,871 48,742 78,457 71,883 93,328  
Centre-Nord   9,186 6,402 12,686 8,108 5,799 10,662 8,743 15,272 12,089 19,083  
Centre-Ouest   44,272 51,636 37,639 46,076 27,103 74,168 82,957 88,542 103,173 221,530  
Centre-Sud   13,395 13,895 23,189 19,602 15,851 28,948 36,794 35,737 54,777 45,890  
Est   35,408 24,725 28,064 28,857 35,152 67,107 59,000 100,827 60,184 165,447  
Hauts-Bassins   267,642 188,858 359,937 379,769 209,426 391,077 296,260 348,994 332,461 473,585  
Nord   5,059 3,455 8,605 5,093 7,574 5,403 4,086 11,191 3,448 7,535  
Plateau-Central   4,832 4,195 8,742 8,177 7,064 17,637 13,842 22,385 28,769 34,611  
Sahel   618 975 2,309 1,197 3,157 2,382 946 1,879 1,064 3,523  
Sud-Ouest   43,977 45,538 39,210 53,151 33,308 68,989 70,353 90,829 71,439 81,992  

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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