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WeedElec: a robotic research platform for individual weed detection and selective electrical weeding

Abdelghafour F., Rançon F., Liu S., Champ J., De Rudnicki V., Guizard C., Goeau H., Doussan C., Joly A., Bonnet P., Rabatel G.. 2021. In : Stafford, John V. (ed.). Precision agriculture ’21 : Papers presented at the 13th European Conference on precision agriculture, Budapest, Hungary, 18-22 July 2021. Wageningen : Wageningen Academic Publishers, p. 695-702. Europe Conference on Precision Agriculture. 13, 2021-07-18/2021-07-22, Budapest (Hongrie).

DOI: 10.3920/978-90-8686-916-9_83

The project 'WeedElec' aims at developing a robotic intra-row weeding solution based on a highvoltage selective electrocution. lt performs the following tasks: weed detection and location, positioning of the weeding probe according to location results and electrical destruction of weeds. The detection is achieved using an RGB camera associated with the deep-learning solution of the 'Pl@ntNet' team. Discrimination results between crops and weeds attained 76% accuracy for maize and 62% for beans (field trials) . Mortality rates weeds ranged from 75% (Polygonaceae) to 13% (Brassicaceae) for plants less than one month old (laboratory conditions). Survivors were nevertheless impacted with a severe limitation of their growth.

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