Innovative pneumatic device for combined seeding of various tilled crops Yuri Lachuga, Badri Akhalaya, Yuri Shogenov, Besarion Meskhi, Dmitry Rudoy and Anastasiya Olshevskaya E3S Web Conf., 210 (2020) 08016 Published online: 04 December 2020 DOI: 10.1051/e3sconf/202021008016