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Crop Updates 2006 - Cadoux And Calingiri, Raj Malik, Kelly Winfield, David Stephens, Michael Meuleners, Kari-Lee Falconer, Bill Bowden, Narelle Simpson, Anne Wilkins, Nathan Hancock, Peter Newman, Glenn Adam, Andrew Blake, Caroline Peak, Stephen Davies, Chris Gazey, Bob Gilkes, Dan Evans, Tania Liaghati

Crop Updates

This session covers nine papers from different authors

1. Performance of oaten hay varieties in Western Australian environments, Raj Malik and Kellie Winfield, Department of Agriculture

2. Performance of dwarf potential milling varieties in Western Australian environments, Raj Malik and Kellie Winfield, Department of Agriculture

3. 2006 Seasonal outlook, David Stephens, Michael Meuleners and Kari-Lee Falconer, Department of Agriculture

4. Matching nitrogen supply to crop demand in high rainfall cropping, Bill Bowden, Narelle Simpson Department of Agriculture

5. An overview of the potential for a Biofuels Industry in Western Australia, Anne Wilkins and Nathan Hancock, Department of Agriculture

6. IWM performs over 5 years …

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Crop Updates 2006 - Farming Systems, Wayne Pluske, Bill Bowden, Craig Scanan, Stephen Davies, Chris Gazey, Peter Tozer, Derk Bakker, Louise Barton, David Gatter, Renee Buck, Daniel Murphy, Christoph Hinz, Bill Porter, Meredith Fairbanks, Nicolyn Short, Ian Foster, James Fisher, Doug Abrecht, Mario D'Antuono, Tracey M. Gianatti, Paul Carmody, Frank D'Amden, Rick Llewellyn, Michael Burton, Caroline Peek, Nadine Eva, Chris Carter, Megan Abrahams, Andrew Blake, Paul Blackwell, Sylvian Pottier, Michael Robertson, Greg Lyle, Lisa Brennan, Tony J. Vyn, Simon Teakle, Peter Norris, Jeff Russell, James Fisher, Roy Murray-Prior, Deb Pritchard, Mike Collins, Greg Hamilton, Rob Hetherington, Andrew Van Burgel, Cliff Spann

Crop Updates

This session covers nineteen papers from different authors:

SOIL AND NUTRIENT MANAGEMENT

1. Inve$tigating fertili$er inve$tment, Wayne Pluske, Nutrient Management Systems

2. KASM, the potassium in Agricultural System Model,Bill Bowden and Craig Scanlan, DAWA Northam and UWA, School of Earth and Geographical Sciences

3. Long term productivity and economic benefits of subsurface acidity management from surface and subsurface liming, Stephen Davies, Chris Gazey and Peter Tozer, Department of Agriculture

4. Furrow and ridges to prevent waterlogging, Dr Derk Bakker, Department of Agriculture

5. Nitrous oxide emissions from a cropped soil in Western Australia, Louise Barton^{1 …}

Spatial Distribution, Temporal Stability, And Yield Loss Estimates For Annual Grasses And Common Ragweed (Ambrosia Artimisiifolia) In A Corn/Soybean Production Field Over Nine Years, Sharon A. Clay, Bruce Kreutner, David E. Clay, Cheryl Reese, Jonathan Kleinjan, Frank Forcella

Agronomy, Horticulture and Plant Science Faculty Publications

Weeds generally occur in patches in production fields. Are these patches spatially and temporally stable? Do management recommendations change on the basis of these data? The population density and location of annual grass weeds and common ragweed were examined in a 65-ha corn/soybean production field from 1995 to 2004. Yearly treatment recommendations were developed from field means, medians, and kriging grid cell densities, using the hyperbolic yield loss (YL) equation and published incremental YL values (I ), maximum YL values (A), and YL limits of 5, 10, or 15%. Mean plant densities ranged from 12 to 131 annual grasses m22 …