For citations:

Zavyalova N.E., Vasbieva M.T., Yamaltdinova V.R., Shlyapina Ya.V. Characteristics of humic acids in sod-podzolic soil under long-term exposure to different fertilization systems. Dokuchaev Soil Bulletin. 2022;(111):97-115. (In Russ.) https://doi.org/10.19047/0136-1694-2022-111-97-115