Southern Farming Systems
23 High Street
Inverleigh VIC 3321
03 5265 1666
SoilsResources
Resource
29-8-23 Lonies phalaris diff between gibb (left) urea (right)

Boosting Phalaris winter growth using Nitrogen & Gibberellic Acid

SFS 2024 Trials Results Book Report written by Jessie Wettenhall & Lisa Miller, Southern Farming Systems

Key Messages

  • Nitrogen and gibberellic acid can be used to boost winter growth of phalaris by an additional 275 kg DM/ha.
  • Nitrogen was not limiting pasture production in winter 2024 due to sufficient levels of soil nitrogen, however pastures did respond to the addition of urea during September when the plants were actively growing.
  • Gibberellic acid is currently a more cost-effective option for boosting winter growth than urea, due to the high price of urea and the ability to grow additional feed within four weeks of application in winter.
  • Australian phalaris had the lowest winter production due to its semi winter dormancy trait, however, it showed good responses to gibberellic acid.
  • Gibberellic acid treatments resulted in less dry matter produced in the spring, which is generally not a concern as available feed in other pastures is unlikely to be limited in spring. This might be a concern if you wish to use this pasture for silage or hay production.

Read the full report here…

 

Information on this website is not a scientific journal and has been prepared solely as a means of disseminating information to the members of SFS and the community. Content on this website has been prepared in good faith on the basis of information available at the date of publication. Although all reasonable care has been taken in producing the reports within, the authors do not warrant that the content is free from errors or omissions.

The authors and SFS does not accept any liability for the contents of this publication or any loss, damage, cost or expense incurred from relying on the information within. Readers are responsible for assessing the relevance and accuracy of the contents of this website. Products may be identified by propriety or trade names to help readers identify them, however, this is not an endorsement or recommendation of any product or manufacturer referred to.

  • © Southern Farming Systems 2026
  • ABN 54 093 170 631
  • Sitemap
Back to top

Log in for full access to the SFS website. If you're not a member, you can find out more.