Data set

The impact assessment unit has a database that comprises data from several countries and at difference levels. The light survey and deep survey are major sources of this data set.


Description

Côte d’Ivoire

• A completely cleaned data set containing varietal diffusion and adoption information involving about 1,500 rice farmers in 50 villages of Côte d’Ivoire. Collected between 2000 and 2002, it is being used to analyze various issues related to adoption of modern varieties (including the NERICAs), rice biodiversity, seed acquisition and management, etc.

• A data set containing detailed plot and household levels information on a sample of 280 farm household in Côte d’Ivoire. This data, which is in the final stage of cleaning, has some gaps due to the disruptions caused by the war in Côte d’Ivoire. The data is being used to assess the impact NERICA adoption on rice productivity and household level indicators of well being in Côte d’Ivoire.

• The two data sets are fully documented.

Guinea (joint with IRAG and SNPRV)

• The ARI baseline survey data set containing varietal diffusion and adoption information involving about 360 rice farmers in 18 villages from two natural regions (Upper Guinea and Guinea forest) of Guinea in 3 districts (Faranah, Macenta and Mandiana) for light survey and 120 household selected from the 360 above are available (data was collected in 2005 and 2006). However, the data cleaning is on going and will be used to produce update results on NERICA adoption in Guinea.

• A data set collected between 2002 and 2004 and containing varietal diffusion and adoption information on about 1,600 rice farmers in 80 villages from all four natural regions of Guinea. This data set is relatively cleaned and is being used to analyze various issues related to adoption of NERICA and other modern varieties, rice biodiversity, seed acquisition and management, etc. The data was combined with census-level data (from the national agricultural census) to estimate the actual and potential areas for different varieties for the entire country. This data set is fully documented.

• A data set containing detailed plot and household-level information on a sample of about 500 farm households in Guinea. Data entry and cleaning for this data set is still on-going. This data is being used in particular to assess the impact of NERICA adoption in Guinea.

Benin (joint with INRAB)

• A data set containing varietal diffusion and adoption information for about 300 rice farmers in 24 villages in Benin. This data set collected in 2004 and 2005 is relatively cleaned and is being used to analyze various issues related to the adoption of NERICA and other modern varieties and to assess the impact of such adoption in Benin. This data set has not yet been documented.

• A data set containing main biotic, abiotics and socioeconomics constraints to rice production environment, the occurrence and magnitude of these stress/constraints, these informations were collected from scientists, communities and farmers. Household and plot level data on: areas and yield by variety; farmer perception of preferred varieties; knowledge and adoption of varieties -input use;-Access to seed and their management;-Non-farm income and assets;-Production and agricultural income;-etc.

Gambia

• A completely cleaned data set containing varietals-diffusion and adoption information involving about 600 rice farmers in 70 villages of The Gambia. Collected 2006, the data has been analyzed and two papers have been written focusing on a adoption and impact of the NERICAs.

• The data set has been fully documented and available for use by those that may need it.

Mali (Joint with IER):

• A data set containing varietal diffusion and adoption information involving about 500 rice farmer in 28 villages of three agricultural regions of the country (the data was collected in 2006. The data cleaning is on going and the data is being used to analyze various issues related to NERICA adoption (and other modern varieties) and to assess the impact of adoption of NERICA and other modern varieties in Mali on selected outputs

Other countries (joint with NARS)

• A data set containing main biotic, abiotics and socioeconomics constraints to rice production environment, the occurrence and magnitude of these stress/constraints, these informations were collected from scientists, communities and farmers. Household and plot level data on: areas and yield by variety; farmer perception of preferred varieties; knowledge and adoption of varieties -input use;-Access to seed and their management;-Non-farm income and assets;-Production and agricultural income;-etc. These data were collected in Benin (with INRAB), Burkina Faso (with INERA), Cameroon (with IRAD), Central Africa Republic (with ICRA), Chad (ITRAD), Democratic Republic of Congo (with INERA), Mali (with IER) Nigeria (with NCRI), Rwanda (with ISAR), Senegal (with ISRA), Sierra Leone (with SLARI), Togo (with ITRA) and Uganda (with NARO). The data will be use to Map the spatial coverage and severity of abiotics and biotics stresses in rice-growing environments, access the patterns of adoption and diffusion of existing improved varieties (with focus on NERICA varieties) and those that will be developed in the concerned projects.

• In Benin this involves 320 farmers in 5 departments in 2008. Data base was cleaned and descriptive analysis done and report available at AfricaRice.

• In Burkina Faso, data were collected in 2009 with 410 farmers in 20 villages. Data cleaning and descriptive analysis will start very soon.

• In Cameroon, data collection was completed in 2008 with 600 farmers in 30 villages. Data base was cleaned and descriptive analysis on-going.

• In Central Africa Republic, data collection was completed in 2008 with 630 farmers in 24 villages. Data base cleaning and descriptive analysis for the report is on-going.

• In Chad, data were collected in 2008 with 1000 farmers in 34 villages. Data base cleaning and descriptive analysis for the report is on-going.

• In Democratic Republic of Congo, data collection was completed in 2008 with 550 farmers in 55 villages. Data base is cleaned and descriptive analysis done, a draft report is completed.

• In Mali, data collection was completed in 2009 with 532 farmers in 36 villages. Data base is not yet cleaned

• In Nigeria, data collection was completed in 2008 with 500 farmers in 17 villages. Data base is being cleaning.

• In Rwanda, data collection was completed in 2008 with 500 farmers in 8 schemes. Data base is cleaned and descriptive analysis done, report is being completed.

• In Senegal, data collection was completed in 2008 with 418 farmers in 24 villages. Data base is not yet cleaned.

• In Sierra Leone, data collection was completed in 2008 with 900 farmers in 90 villages. Data base is not yet cleaned.

• In Togo, data collection was completed in 2008 with 250 farmers in 15 villages. Data base is cleaned and descriptive analysis done, a descriptive report is completed.

• In Uganda, data collection was completed in 2008 with 400 farmers in 8 villages. Data base is cleaned and descriptive analysis on-going; a draft report is being completed.