Review of designs of cultivators for agricultural care of forest crops Sergey Malyukov, Leonid Bukhtoyarov, Mikhail Lysych, Evgeny Pozdnyakov, Mikhail Shavkov, Aleksandr Petkov and Igor Shanin E3S Web of Conf., 389 (2023) 03016 Published online: 31 May 2023 DOI: 10.1051/e3sconf/202338903016