Moroccan Journal of Agricultural and Veterinary Sciences

Vol. 9 No. 2 (2021): (June 2021)
Agricultural and Rural Economics

Profitability and obstacles to the adoption of improved varieties of Manioc among farmers DR Congo

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  • Prosper Salumu KIMWANGA,
  • Léonard Muanasaka KABUITA,
  • Jean-Paul Lusi SIWAKO,
  • Benjamin Dowiya NZAWELE,
  • Moses Imani MUSSA
Prosper Salumu KIMWANGA Institut facultaire des Sciences Agronomiques de Yangambi (IFA-Yangambi), RD Congo
Léonard Muanasaka KABUITA Institut facultaire des Sciences Agronomiques de Yangambi (IFA-Yangambi), RD Congo
Jean-Paul Lusi SIWAKO Ingénieur Agroéconomiste et Chercheur indépendant, RD Congo
Benjamin Dowiya NZAWELE Laboratoire de Génétiques et Amélioration des Plantes, IFA-Yangambi, Kisangani, RD Congo
Moses Imani MUSSA Institut Supérieur d’Etudes Agronomiques et Vétérinaires du Maniema (ISEAV-Maniema), RD Congo

Published 2021-06-16

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Abstract

The objective of this study was to compare the profitability of improved cassava varieties (Manihot esculenta Cranz.) with those of local cassava and to assess the barriers to adoption of new varieties disseminated by research institutions in the study site. A field survey was conducted in 40 small family farms selected on the Alibuku axis (Kilometre Point 30), using the "snowball" sampling method. Cassava cultivation is practiced extensively, with a short fallow period. The main cultivation operations are clearing, burning, cutting, weeding and harvesting.  Weeding work accounts for a large part of the production cost. The average yield per hectare recorded by the farmer was 9 tonnes/ha for the cultivation of improved varieties of cassava compared to 5.7 tonnes/ha for the cultivation of local varieties. The gross product generated by the improved cultivar is 348700 CDF/ha (218 USD/ha). On the contrary, the marketed value per hectare of local cassava is 119,600 CDF (74.75 USD). This disparity in the gross product of the improved varieties compared to local varieties would be explained by genetic improvement and resistance to African Cassava Mosaic (AMM). The financial returns were 1.39 and 3.48 respectively for local and improved varieties of Cassava. The lack of adoption of improved varieties, although they are more productive than local varieties, is explained by the usual local preferences (organoleptic quality, control of production methods).

Keywords: Profitability, improved manioc, local manioc, Alibuku, Tshopo, DR Congo

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