Oil palm (Elaeis guineensis) has become the most important oil crop throughout the world. The growing palm oil production was mainly based on the expansion of cultivated area into forest areas, causing serious environmental and social concerns. Increasing yields on existing plantations is a potential pathway to reduce the undesired ecological impacts of oil palm agriculture while enhancing its social benefits. Although oil palm production is still dominated by large private estates, smallholder farmers are increasingly engaging in its cultivation. While there is some evidence that smallholders' palm oil yields show large variations and are often far below plantation standards, empirical studies on their agronomic performance are scarce. Based on crop modeling analysis and farm household survey data from Sumatra, Indonesia, this paper quantifies smallholder yield gaps relative to exploitable yield levels and analyses smallholders' production constraints. Results show that oil palm smallholdings offer a tremendous potential for future yield increases, because they obtain, on average, only around 50% of the cumulative exploitable yield over a 20 year plantation life cycle. In particular, we find yield gaps to be largest during the most productive phase of oil palm. Our results indicate that farmers do not adapt their labor and fertilizer inputs to the higher resource demand of the palm. In general, significant determinants of yield gaps are management practices such as fertilizer dosage, length of harvesting intervals and plant mortality. Supported smallholders perform relatively better compared to independent farmers. In summary, our study shows that there is large potential to increase productivity of smallholder oil palm systems in Sumatra. In order to exploit this opportunity, farmers' awareness about the changing management requirements of oil palm over the plantation life cycle needs to be enhanced.
L'article propose d'utiliser le concept de sécurisation alimentaire pour étudier les actions et processus qui améliorent une situation alimentaire, plutôt que celui de sécurité alimentaire qui se réfère avant tout à la satisfaction de besoins alimentaires. Dans une première partie,...
C’est en 1954 que les paysans de la Commune rurale de l’Imanan, située dans l’Ouest du Niger, ont commencé la culture de pomme de terre. Partie d’une simple culture d’appoint associée à d’autres spéculations, la production de pomme de terre...
Oil palm cultivation is a primary income source for millions of rural farm and non-farm households in the tropics but management systems of this tropical crop often vary in space. Understanding this spatial variation and driving factors is crucial...
Des changements dans les agendas des politiques publiques des Comités Nationaux de l’Agriculture Familiale des Philippines, du Honduras, du Burkina Faso et du Sénégal seront soutenus techniquement et économiquement. La création d’un nouveau Comité au Tchad sera également appuyée....
Past studies showing that barriers to farmers’ adaptation behaviors are focused on their socio-economic factors and resource availability. Meanwhile, psychological and social considerations are sparingly mentioned, especially for the related studies in developing countries. This study investigates the impact of...