TY JOUR TI Changes in the productivity of depleted lowland peatland in dependence of the mineral fertilizer KW depleted peatland KW mineral fertilizer KW perennial grass stand KW productivity KW soil fertility JO Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences AU Kovshova, V.N. PY 2023 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"