Participatory action research on available organic resources for the production of vermicompost in Madagascar highlands

2024

Article référencé dans le Web of Science WOS:001335228900003

Rakotobe R., Razafindrakoto M., Ravonjiarison N., Blanchart Eric, Andriamifidy T. R., Bernard Laetitia, Raminoarison M., Rakotomalala H. H., Ratsiatosika O., Autfray P.

Biotechnologie Agronomie Société et Environnement, 2024, 28 (3), p. 131-146 ISSN 1370-6233

Description of the subject. In a peri-urban commune in Madagascar, Participatory Action Research (PAR) aims to improve the supply of organic fertilizer through vermicomposting. Objectives. Firstly, an inventory of plant resources was carried out, with a study of their availability over the three agricultural seasons. Method. A capitalization on local knowledge was performed by combining individual surveys and group workshops involving 42 farmers and 10 facilitators. Results. Sixty-three species were identified with their scientific and local names. These resources were grouped into contrasting entities: trees, shrubs, succulents, fallow and fallow grass, weeds, and crop residues. Their various other uses were specified. Rice residues, straw, and husks are available outside the rainy season (May to November), while weeds and annual species from fallow and uncultivated land are mainly available during the rainy season (December to April). A capitalization workshop involving 42 farmers and 10 facilitators enabled knowledge of 27 of the 63 species to be compiled. Six main plant resources were identified collectively, including three shrubs, rice straw, fallow and fallow grass straw, and banana residues. Conclusions. This survey, part of a PAR loop, helped to determine the availability of plant resources for vermicomposting and to combine local and scientific knowledge as part of a cross-learning process.

Sciences du milieu [021] ; Sciences du monde végétal [076] ; Biotechnologies [084]

MADAGASCAR

Fonds IRD [F B010091939]

fdi:010091939