Nitrogen species specific phosphorus mineralization in temperate floodplain soils.

ABSTRACT: As an essential component of enzymes, higher N availability from agricultural runoff to forest soils may boost the activity of phosphatase, increasing the bioavailability of phosphate. The objective of this study was to evaluate P mineralization rates in temperate floodplain soils as a function of inorganic N species (i.e., ammonium and nitrate) and amendment rate (1.5-3.5 g N kg^-1). Accordingly, the soil was amended with nitrate and ammonium, and P dynamics were monitored during a 40-day incubation. The addition of ammonium significantly boosted acid and alkaline phosphatase activity by 1.39 and 1.44 µmol p-nitrophenol P (pNP) g^-1 h^-1, respectively. The degree of increase was positively correlated with the amendment rate. Likewise, the P mineralization rat

SUBMITTER: Arenberg MR 

PROVIDER: S-EPMC8408222 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature