Effects of nitrogen fertilization and bioenergy crop type on spatial distributions of extracellular hydrolases associated with nitrogen and phosphorus acquisition.

ABSTRACT: Extracellular hydrolases associated with nitrogen (N) and phosphorus (P) acquisition are important for soil nutrient cycling. The spatiotemporal patterns of N- and P-hydrolases were rarely studied under N fertilization. It is also unclear whether the N fertilization effects likely vary among different crop species. This study employed a spatially explicit design and clustered soil sampling strategy (288 samples at 0-15 cm) in a fertilization experiment with zero, low and high N input (NN, LN and HN: 0, 84, and 168 kg N ha^- 1 yr^- 1 urea, respectively) in switchgrass (SG: Panicum virgatum L.) and gamagrass (GG: Tripsacum dactyloides L.) croplands in Middle Tennessee. N-acquisition hydrolases such as leucine aminopeptidase (LAP), β-N-acetylglucosaminidase (NAG), their su

SUBMITTER: Li J 

PROVIDER: S-EPMC12267496 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature