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Analysis of the effect of peat moss on chemical properties of soil. (a) Change in soil organic matter (g/kg) as affected by peat moss (PM) after experiment; (b) change in soil phosphate (mg/kg) as affected by PM treatment after experiment; (c) change in soil exchange base (cmol/kg) as affected by peat moss treatment after experiment; (d) change in soil total nitrogen (g/kg) as affected by peat moss treatment after experiment. ** indicates a significant difference at p < 0.01.
