Authors: Harm van Rees1, Michael Moodie2, Jeremy Whish3, Elizabeth Meier3, David Gobbett3, Roger Lawes3, Chao Chen3, Tim McClelland4, Stephen van Rees5, Vicki Lane5 1Cropfacts/BCG; 2MSF/Frontier Farming Systems, 3CSIRO 4 Model Agronomics/BCG, 5SquareV
Funded By: GRDC BWD00025
Project Title: National Paddock Survey
- Intensive monitoring of soils and crops over a rotation sequence has identified why crops do not achieve their potential yield.
- Reviewing paddock performance at the end of the season and using paddock records is essential for sustained improvement in agronomic performance.
- Insufficient nitrogen was the main cause for the yield gap in NPS monitored paddocks in the Victorian and South Australian Mallee. Frost and heat shock were also responsible for yield penalties. Diseases, weeds and insects also contributed, but were less severe in impact.