Comparative tests of ridging cultivators with active and passive working toolsAndrey Panov, Maxim Mosyakov, Stepan Semichev, Valery Plyaka, Nikolay Lylin and Mikhail MekhedovE3S Web Conf., 264 (2021) 04017DOI: https://doi.org/10.1051/e3sconf/202126404017