Publications dans des revues

Abstract Performant agricultural advisory services (AAS) in Africa are crucial for improving the agricultural productivity and food security of the farm households. Yet, evidence‐based study on the impacts of AAS on farm performance are scarce, especially in West African countries. This study evaluates the impact of access to AAS on input use and farm performance in Senegal, employing the instrumental variable and control function approaches accounting for selection bias. The approaches are also employed to several sub‐samples to see if the impacts are heterogeneous across crop types and fertilizer use, and matching techniques are applied to test the robustness of the results. Results show that the highest positive impact of AAS is on yield, while the impacts on gross margin and improved seeds uptake are very modest. Access to AAS has no effect on fertilizer uptake. It also finds that AAS impacts positively cereal production and farmers using no fertilizer but has no effect on the legume and horticultural crop production and on farmers using fertilizer. Given the Senegalese government and donors have put a lot of effort into developing an efficient AAS system, a consideration of the identified weaknesses is required to improve its efficiency. [EconLit Citations: Q12, Q16]

Peste des petits ruminants (PPR) causes high mortality in sheep and goats leading to negative social, cultural, and economic impacts on farmers who keep small ruminants. Since 2019, Burkina Faso has been implementing a national strategy to eliminate PPR. After two years of mass vaccination of small ruminants with significant resources invested, very little is known about the cost of vaccination and how it is distributed along with the different nodes of the vaccine distribution chain. This study aimed to fill this gap to inform decision-making in the allocation of the limited resources that are available. The results show that the cost of vaccination of a small ruminant is XOF 169 (USD 0.3) and XOF 103 (USD 0.18) if the vaccination is carried out by public and private vaccinators, respectively. Field activities and personnel bear the highest cost share. These results will inform a better resource allocation to improve the effectiveness and efficiency of small ruminants vaccination against PPR.

Socio-economic constraints like gender, education, age, and income significantly affect the adoption of improved agricultural technologies. The objective of this study was to determine socio-economic factors that affect the adoption of improved cowpea varieties in the Senegalese peanut basin. The study was conducted in three (Bambey, Kebemer, and Kaffrine) of six regions of the peanut basin based on regional importance of cowpea production and rainfall gradient. In each study region, ten villages were selected, and random sampling was used to select eight heads of agricultural households within each village. The questionnaires were administered to 240 randomly selected farmers across the three study regions, 7 communes, and 30 villages. Results showed most heads of households were middle-aged (52–54 years old), married (95–100%), illiterate (84%), and men (95–100%). Households were mostly agriculture dependent (87%), low literacy rates (26% least primary school), and large family sizes (average of 15 members). The median cowpea yields across the study area varied from 35–100 kg ha−1 , well below the ~300–400 kg ha−1 average yields reported for Senegal and Sub-Saharan Africa. The majority of farmers (67%) in the study regions did not use improved varieties, and the main reasons were low seed availability (78.8%) and limited access to technical knowledge and information (76.3%), but only 5.8% indicated seed price as a barrier to improved variety adoption. Major uses of cowpea in the study area were for marketing, livestock feed, and human consumption. In Kaffrine, fodder production was the major (85%) criterion for cowpea variety selection, whereas in the north (Bambey and Kebemer), taste, maturity date, and grain yield were major selection criteria. Factors that had positive effect on the likelihood of using improved cowpea varieties include; access to extension services, membership in farmers’ organization, cowpea being the main crop of production, organic farming, market, and livestock-oriented production systems, access to farmland and credit, dependence on agriculture as the main source of household income, and education of head of household. We conclude that there is a critical need for training, access to improved seeds, awareness, and financial support to producers to increase the adoption of new improved cowpea varieties, yields, profitability, and nutritional security among smallholder farmers in the Senegalese peanut basin.

Wade, Idrissa; Ndiaye, Oumar Samba. In Grain sel n° 48 (p8), 15 décembre 2009.

Dia, Djiby; Broutin, Cécile Duteurtre, Guillaume. In Grain de sel nº 46-47, (partie 18- 19p), mars-août 2009.

JIMBIRA, Maam Suwadu- SAKHO; BIGNEBAT, Céline; SOUBEYRAN, Raphaël; CATTIN, Michel BENOIT. Les ressorts internes de l’autonomie alimentaire des groupes familiaux du Bassin arachidier Sénégalais. 2ème Journées INRA-SFER-CIRAD de Recherches en Sciences Sociales 11- 12 Décembre 2008, Lille, FRANCE, 24P.

Jimbira, Maam Suwadu -Sakho; BIGNEBAT, Céline. Local diversification of income sources versus migration:Complements or Substitutes? A case study from rural Senegal. Paper presented at the 37th Australian Conference of Economists September 30 - October 3, 2008 (Gold Coast, Queensland, Austalia), 19P.

Jimbira, Maam Suwadu- Sakho; Cattin, Michel- Benoit. Cereal supplies in rural families of the Senegalese Groundnut Basin. Paper prepared for presentation at the 106th seminar of the EAAE Pro-poor development in low income countries: Food, agriculture, trade, and environment 25-27 October 2007 – Montpellier, France, 19P.

Alary, V.; Poccard-CHAPUIS R.; Dieye, P. Nouhine; Corniaux, C; Dicko. M. L’évolution des marchés de bovins au Mali face à la crise ivoirienne/ Trends of the bovine market in Mali within the context of the Ivory Coast crisis, in Renc. Rech. Ruminants, 1P, 2007.

Dieng, Alioune. Alternative Forecasting Techniques for Vegetable Prices in Senegal, in Revue sénégalaise agricole et agroalimentaire, vol.1, n° 3, janvier 2009.

Duteurtre, Guillaume; Wade, Idrissa; Fall, A.A. Régulation des marchés agricoles au sénégal: entre arbitrage et gestion concertée, in grain de sel n° 41- 42 (partie 2), décembre 2007

Dieye, P.N. Les politiques agricoles en Afrique subsaharienne: une symphonie inachevée. In grain de sel n° 41- 42 (partie 1), décembre 2007, 2p.