@article{fa84960096d7425a8ed31fc7a30b679c,
title = "Inorganic nitrogen and glucose additions alter the short-term formation efficiency of mineral associated organic matter carbon",
abstract = "Carbon within mineral associated organic matter (MAOM) is an important persistent form of soil organic carbon (SOC). However, processes driving the retention of new labile C in MAOM are not fully understood. We investigated the effects of glucose and ammonium nitrate (AN) addition on the short-term (72 h) retention of applied 13C-glucose within MAOM. We found an interactive effect of AN addition with the glucose addition rate. Higher rates of glucose addition resulted in proportionally less glucose-C retained, indicating lower MAOM-C formation efficiency. Addition of AN only altered the proportional retention of glucose where glucose was applied at the lowest rate. In this instance glucose-13C recovery increased with AN addition. However, after 72 h there was no treatment difference in total MAOM-C, indicating that any changes in formation efficiency as a result of AN and glucose additions, did not result in differences in total MAOM-C in the short-term. Whether and how this affects the medium and longer-term dynamics of MAOM-C requires further investigation. ",
keywords = "Ammonium nitrate fertiliser, low molecular weight carbon, mineral associated organic matter, soil organic carbon",
author = "Kirsty Paterson and Cloy, {Joanna M.} and Rees, {Robert M.} and Sarah Buckingham and Liz Baggs",
note = "Funding Information: We thank Dr. Benjamin Jackson, University of Edinburgh, for 13C analyses and John Parker, SRUC, for technical support. This research has been supported by SRUC's postgraduate studentship programme and the Global Academy of Agriculture and Food Systems, University of Edinburgh. We also thank the Scottish Government RESAS programme (2016 to 2021) for funding support. For the purpose of open access, the authors have applied a CC-BY public copyright license to any Author Accepted Manuscript version arising from this submission. Funding Information: We thank Dr. Benjamin Jackson, University of Edinburgh, for 13C analyses and John Parker, SRUC, for technical support. This research has been supported by SRUC{\textquoteright}s postgraduate studentship programme and the Global Academy of Agriculture and Food Systems, University of Edinburgh. We also thank the Scottish Government RESAS programme (2016 to 2021) for funding support. For the purpose of open access, the authors have applied a CC-BY public copyright license to any Author Accepted Manuscript version arising from this submission. Publisher Copyright: {\textcopyright} 2024 The Author(s)",
year = "2024",
month = feb,
day = "6",
doi = "10.1016/j.geoderma.2024.116809",
language = "English",
volume = "442",
pages = "1--4",
journal = "Geoderma",
issn = "0016-7061",
publisher = "Elsevier",
}