Wheat harvesting by combine with GPS receiver and grain sensor Komil Astanakulov, Kodir Shovazov, Atkham Borotov, Akram Turdibekov and Saidmukhammad Ibrokhimov E3S Web Conf., 227 (2021) 07001 Published online: 06 January 2021 DOI: 10.1051/e3sconf/202122707001