Antibiotic resistance genes (ARGs) represent a threat to human health. Factors impacting ARGs have been well studied in surface soils, but how such factors affect ARGs in deep soils (> 2 m) remains unknown. This in situ study investigated how long‐term excessive nitrogen (N) fertilisation, specifically leached nitrate (NO 3 − ), influenced ARGs up to 10 m depth. Under replicated 26‐year fertilisation (600 kg N ha −1 ) plots, s...

Acid-sulphate sugarcane soils in the subtropics are known hot-spots for nitrous oxide (N 2 O) emissions, yet the reduction of reactive N 2 O to non-reactive dinitrogen (N 2 ) via specific pathways remains a major uncertainty for nitrogen (N) cycling and loss from these soils. This study investigated the magnitude and the N 2 O:N 2 partitioning of N 2 O and N 2 losses from a subtropical acid-sulphate soil under sugarcane produc...

Nitrous oxide (N 2 O) is a potent greenhouse gas and causes stratospheric ozone depletion. While the emissions of N 2 O from soil are widely recognized, recent research has shown that terrestrial plants may also emit N 2 O from their leaves under controlled laboratory conditions. However, it is unclear whether foliar N 2 O emissions are universal across varying plant taxa, what the global significance of foliar N 2 O emissions...

The nitrogen (N) cycle represents one of the most well‐studied systems, yet the taxonomic diversity of the organisms that contribute to it is mostly unknown, or linked to poorly characterized microbial groups. While new information has allowed functional groups to be refined, they still rely on a priori knowledge of enzymes involved and the assumption of functional conservation, with little connection to the role the transform...