Comprehensive environmental assessment of innovative humic agro product Natalia Kosolapova, Yekaterina Alferova, Olga Miroshnichenko, Elena Protsenko and Natalia Balabina E3S Web Conf., 265 (2021) 05008 Published online: 03 June 2021 DOI: 10.1051/e3sconf/202126505008