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Fig. 4. (a) Cation and anion concentrations of the spent mushroom substrate (SMS) leachate (PL3) and soil leachate (SL3) under SMS piles. Symbols indicate monthly volume weighted means of triplicates by sampling date.
(b) Cation and anion concentrations of the spent mushroom substrate (SMS) leachate (PL5) and soil leachate (SL5) under SMS piles and (c) in an adjacent corn field (SC). Symbols indicate monthly volume weighted means of triplicates by sampling date.
