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OVERSEER: great farming backed by science 

OVERSEER is New Zealand software that enables farmers and growers to improve nutrient use on farms, delivering better environmental outcomes and better farm profitability. 
First developed in the 1980s, OVERSEER is now an essential farming tool, founded on decades of scientific investment.

Some of these photos were supplied by the Fertiliser Association of New Zealand and AgResearch Limited.

What's New

Helpdesk closure over Christmas

The OVERSEER Helpdesk will close at 5pm on Friday 22 December and will open again on 8 January 2018. This means we will not be able to answer any queries or set up any online accounts during this time.

We hope you all have a safe and happy summer break and look forward to hearing from you in the New Year.

OVERSEER update to version 6.3.0

OVERSEER version 6.3.0 is due for release at the end of March 2018

Version 6.3.0 will include performance, modelling and data entry improvements and the addition of Outdoor Pigs.

User guides will be available alongside the release notes and updated Best Practice Data Input Standards.

Technical Description of OVERSEER

Check out the Technical Description of OVERSEER pages on our website.
Based on a report produced for regional councils, the pages describe what OVERSEER is, how it describes a farm, what it produces and details about the science model engine.


OVERSEER can be used as either an Online or a Standalone (desktop installed) application. To use either, first register with MyOVERSEER.

If you want to use the OVERSEER Online application, register with MyOVERSEER and tick Yes to indicate you want us to set up an OVERSEER Online account for you.

If you want to use the OVERSEER Standalone application, you only require a MyOVERSEER account and you can install the application from the MyOVERSEER dashboard.

MyOVERSEER and OVERSEER Online accounts are free to set up and use.


MyOVERSEER is specifically for users of OVERSEER. It is where you access the OVERSEER applications and engage with us about using it and includes:

  • A dashboard for important notices and updates
  • A support page with a search engine for users to look up problems they might be having
  • A helpdesk to contact technical support
  • The release notes, data standards and user guides
  • Technical information including details about the model engine