Exploring the limitations of first-order kinetics (FOK) in modelling net N

  • Catch crops are effective at reducing N leaching in agriculture. • Mineralization of N influences soil fertility and N leaching over winter. • Plant residue N mineralization depends strongly on soil temperature.

 

  •  Organic matter turnover in soil is often modelled as a 1st-order kinetics process in cropping models (APSIM, Daisy, HERMES, etc.).

 

  • Plant residue N mineralization depends
    strongly on soil temperature.