International Science Community Association Research Journal of Engineering Sciences 2278-9472 9 3 2020 09 26 Study, design and construction of a motorized weeder for rice fields 1 8 EN Semassou Guy Clarence 1 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin Chegnimonhan Kouamy Victorin 2 Thermics and Energy Laboratory of Nantes, (LTEN) - CNRS, UMR 6607, BP 50609, 44306 Nantes, France Ahouansou Roger 3 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin Tonoukouin Romualde P. 4 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin Houndekpondji Germain 5 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin > Research Paper 2020 4 23 2020 09 26 This article discusses the design and construction of a motorized weeder to make weeding easier during rice production by reducing producers\' efforts and thus optimizing the yield of rice production in Benin. The purpose of this study was motivated by a practical observation concerning the arduousness of manual weeding in rice fields. Indeed, during the upkeep period of rice cultivation, if herbicides are not used, farmers hand pull out weeds, exposing themselves to numerous diseases. The design process of the motorized weeder was presented and resulted in the realization of this equipment. The results of the study will enable rice fields to be weeded without difficulty and in a time-saving manner, which will undoubtedly lead to an optimization of rice production yield. Copyright@ International Science Community Association