Skip to main content
DISCLAIMER:  Overseer Limited gives no warranties, representation or guarantees, express or implied in relation to the quality, reliability, accuracy and/or fitness for any purpose of the article. Overseer Limited expressly disclaims and assumes no liability whatsoever arising directly or indirectly from the use of, or reliance on this article.

COPYRIGHT: With the exception of user-supplied data, this Report is © 2018 Overseer Limited. All rights reserved. You may copy and distribute this Report in its entirety, as long as you do not mislead anyone as to its origin or implications, and provided you do not remove or alter the disclaimer above or this copyright notice.

2026 - Revill et al.- Improving crop nitrogen uptake prediction in OverseerFM

Helpdesk
  • Updated

Improving crop nitrogen uptake prediction in OverseerFM through iterative soil-crop coupling and recalibration

Abstract
OverseerFM is widely used for farm nutrient budgeting in New Zealand. 

Earlier versions under-predicted crop nitrogen (N) uptake for some crops under moderate to high soil N supply, leaving more residual N in the simulated soil profile and limiting the model’s ability to represent the environmental benefits of catch crops and other cropping systems. 

To address this, field data from 37 experiments across a range of crop types and regions were used to recalibrate crop parameters.

Revill. A, Khaembah. E, Malcolm. B, Brown. H, Tavernet. J-P, Gellatly. S, Bruwer. M-J; Improving crop nitrogen uptake prediction in OverseerFM through iterative soil-crop coupling and recalibration. Journal of New Zealand Grasslands 88: 201-208 (2026)

Related articles