Ways to reduce carbon dioxide emissions from arable machinery and tractor units Camill A. Khafizov, Ramil N. Khafizov, Azat A. Nurmiev and Stanislav A. Sinitsky BIO Web Conf., 52 (2022) 00025 Published online: 21 September 2022 DOI: 10.1051/bioconf/20225200025