Spatial distribution prediction of agro-ecological parameter using krigingViktor Yakushev, Aleksey Petrushin, Olga Mitrofanova, Evgenii Mitrofanov, Vitaly Terleev and Aleksandr NikonorovE3S Web Conf., 164 (2020) 06030DOI: https://doi.org/10.1051/e3sconf/202016406030