The working organ of the cultivator KPS – 4 with a needle disk for weed control N.D. Nekhoroshev, A.P. Arinushkin, D.A. Nekhoroshev, D.D. Nekhoroshev, T.A. Polikarpova and A.N. Matasov BIO Web Conf., 71 (2023) 01012 Published online: 07 November 2023 DOI: 10.1051/bioconf/20237101012