Feeding the world while reducing farmer poverty? Analysis of rice relative yield and labour productivity gaps in two Beninese villages

Paresys Lise, Saito Kazuki, Dogliotti Santiago, Malézieux Eric, Huat Joël, Kropff Martin, Rossing Walter A.H.. 2018. Feeding the world while reducing farmer poverty? Analysis of rice relative yield and labour productivity gaps in two Beninese villages. European Journal of Agronomy, 93 : 95-112.

Quartile : Q1, Sujet : AGRONOMY

Résumé : Improvements in agricultural land and labour productivity are needed to meet the growing food demand and reduce farmer poverty in sub-Saharan Africa. The objectives of this study were to (i) quantify variation in labour inputs, yield and labour productivity among rice fields; (ii) elicit factors associated with this variation; and (iii) identify opportunities for improving yield and labour productivity. The study was carried out in two contrasting Beninese villages: Zonmon in the south and Pelebina in the north-west. In Zonmon 82 irrigated rice fields were surveyed during the 2013 and 2014 dry seasons. In Pelebina 50 rainfed lowland rice fields were surveyed over three rainy seasons (2012–2014). Data on farmer field management practices and field conditions were recorded through interviews with farmers, on-farm observations and measurements. Stepwise regression analyses were used to identify variables associated with variation in yield, labour inputs and labour productivity. Average yields were 4.8 ± 2.0 t ha−1 in Zonmon and 2.3 ± 1.2 t ha−1 in Pelebina. Average labour productivity, however, was larger in Pelebina (17 kg of paddy rice person-day−1) than in Zonmon (8 kg of paddy rice person-day−1). Relative yield gaps (43–48%) and labour productivity gaps (59–63%) were similar in the villages. There was no trade-off between yield and labour or labour productivity within the villages, suggesting that in many cases rice yields can be increased without additional labour inputs. The major labour-demanding farming operations were bird scaring in Zonmon and harvesting and threshing in Pelebina. We identified opportunities to improve rice yield and labour productivity, given current farmer knowledge and resource endowment. Based on the statistical models fitted per village, increasing the average hill density would result in up to 1.2 t ha−1 more yield, and up to 4 kg person-day−1 greater labour productivity for Zonmon. Increasing the average field size and avoiding rice shading would result in up to 0.8 t ha−1 more yield, and up to 17.1 kg person-day−1 greater labour productivity for Pelebina. Further enhancing yield and labour productivity will require (i) introducing small-scale mechanisation and other labour-saving innovations, in particular for labour-demanding farming operations such as bird scaring in Zonmon and harvesting and threshing in Pelebina; and (ii) combining analyses of yields and labour productivities at field level with detailed analyses of labour use and labour productivity at farm level. We found that, on average, one hectare in Zonmon contributed twice as much to Beninese rice production than one hectare in Pelebina but with a two times smaller reward for farmer labour. This paradox of higher yields but lower labour productivity in such different rice growing environments and farming systems should be addressed in elaborating development policies.

Mots-clés Agrovoc : Oryza sativa, riz, perte de récolte, rendement des cultures, pratique culturale, efficacité, productivité, rendement, travail, force de travail, exploitation agricole, pauvreté, analyse de régression, étude de cas, enquête sur les exploitations agricoles

Mots-clés géographiques Agrovoc : Bénin

Mots-clés libres : Rice, Yield gap, Labour productivity gap, Management practices, Labour-saving technologies

Classification Agris : F01 - Culture des plantes
E16 - Économie de la production
E12 - Travail et emploi

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Agences de financement européennes : European Commission

Projets sur financement : (EU) Realizing the agricultural potential of inland valley lowlands in sub-Saharan Africa while maintaining their environmental services Phase 2

Auteurs et affiliations

• Paresys Lise, Wageningen University (NLD) - auteur correspondant
• Saito Kazuki, Centre du riz pour l'Afrique (CIV)
• Dogliotti Santiago, Universidad de la Republica (URY)
• Malézieux Eric, CIRAD-PERSYST-UPR HortSys (FRA) ORCID: 0000-0002-5706-9610
• Huat Joël, CIRAD-PERSYST-UPR HortSys (MYT) ORCID: 0000-0002-8271-1652
• Kropff Martin, Wageningen Agricultural University (NLD)
• Rossing Walter A.H., Wageningen University and Research Centre (NLD)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/587114/)

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