The official proceedings of the Australian Society of Agronomy Inc.’s 17th Australian Agronomy Conference held at the Wrest Point Convention Centre in Hobart, Tasmania from 20 to 24 September 2015 will be published on the Society’s website – www.agronomyaustralia.org.

The full papers are listed below in themes in order of presentation in the program. All papers were externally peer reviewed.

Published in 2015 by:
Australian Society of Agronomy Inc.
PO Box 1349
Warragul Victoria 3820
Australia

Editors:

  • Dr Tina Botwright Acuña, Tasmanian Institute of Agriculture, University of Tasmania
  • Dr Matthew Harrison, Tasmanian Institute of Agriculture, University of Tasmania
  • Dr Carina Moeller, Tasmanian Institute of Agriculture, University of Tasmania
  • Dr David Parsons, Tasmanian Institute of Agriculture, University of Tasmania

Copyright © 2015 Australian Society of Agronomy Inc.
All rights reserved

The correct reference for papers presented at this conference is:

[Authors] (2015) [Title of paper], [page No.]
Building Productive, Diverse and Sustainable Landscapes”. Edited by T. Acuña, C. Moeller, D. Parsons and M. Harrison. Proceedings of the 17th Australian Agronomy Conference 2015, 21 – 24 September 2015, Hobart, Tas.

ISBN: To Be Advised

Plenary Papers

Education, research and partnerships in Agri-Food in a global and connected world

Prof. Dr. Martin J. Kropff

Full Paper
Forage crop systems: Challenges, opportunities and technology transfer

Jerry H. Cherney, E.V. Baker

Full Paper
Development, participatory extension and adoption of zero tillage – case of Syria and Iraq 2005 – 14

Colin Piggin, Stephen Loss, Atef Hadda, Yaseen Khali

Full Paper
Development of a soil sulfur test and sulfur enhanced fertilisers from the soil up

Graeme Blair

Full Paper
Achieving sustainable improvements in nutrient efficiency with precision agriculture

Steve Phillips

Full Paper
From adversity comes strength – repositioning education in agriculture

James E Pratley and Tina Botwright Acuña

Full Paper

High Yielding Environments

High rainfall zone grains: yield gaps, production trends and opportunities for improvement

Michael Robertson, John Kirkegaard, Allan Peake, Cam Nicholson, Lindsay Bell, Julianne Lilley, Jon Midwood, Heping Zhang, Susan Kleven, Chris Duff, Penny Riffkin

Full Paper
Drivers of high yielding irrigated wheat production

Tony Napier, Luke Gaynor, Deb Slinger, Neroli Graham, Cynthia Podmore

Full Paper
Crop yield potential limited by nutrient status in the high rainfall zone of Southern Australia

B.P. Christy, P.A. Riffkin, A. Clough, R Norton, K. Stott, G.J. O’Leary

Full Paper
Simulating grain and grazing yield of diverse wheat genotypes in the HRZ

Lindsay W. Bell, Julianne M. Lilley, James R. Hunt, John A. Kirkegaard

Full Paper
The response of hybrid and open-pollinated canola to the environment in southern Australia

Heping Zhang, Jens D Berger, Mark Seymour, Rohan Brill, Richard Quinlan, Garren Knell

Full Paper

Crop Adaptation

Commercial wheat varieties are broadly adapted to time of sowing in Australia

Roger Lawes, Zvi Hochman, Neil Huth

Full Paper
Pushing the limit for water-use efficiency in early-sown canola

John Kirkegaard, Rohan Brill, Julianne Lilley

Full Paper
The critical period for yield determination in chickpea

Lachlan Lake, Victor O. Sadras

Full Paper
Adapting rain-fed sorghum agronomy to breeding progress – Cropping system model parameterisation

Barbara George-Jaeggli, Jason Brider, Ian Broad, Karine Chenu, Joseph Eyre, Ariel Ferrante, Greg McLean, James McLean, Andrew Skerman, Daniel Rodriguez

Full Paper
Physiological and biochemical attributes of Camelina sativa (L.) Crantz under water stress conditions

Ejaz Ahmad Waraich, Zeeshan Ahmed, Rashid Ahmad, M. Shahbaz

Full Paper

Managing Pests and Diseases

Exotic plant pests – a threat to the sustainability of Australia’s grains industry

Rachel Taylor-Hukins, Judy Bellati, Kym McIntyre and Rohan Burgess

Full Paper
High crown rot risk – should growers plant barley or wheat?

Rick Graham, Steven Simpfendorfer, Guy McMullen

Full Paper
Managing viral diseases in chickpeas through agronomic practices

Andrew Verrell, Kevin Moore

Full Paper
Fusarium crown rot of wheat – impact on plant available soil water usage

Rick Graham, Steven Simpfendorfer, Guy McMullen, Neroli Graham

Full Paper

 Pasture Breeding

Summer production of alternative species in comparison to perennial ryegrass and white clover for high input pasture systems

Rowan Smith, Eric Hall, Ross Corkrey, David Parsons, Keith Pembleton, Richard Rawnsley

Full Paper
Chicory (Cichorium intybus L.) beat the heat during summer drought in southeast Australian dairying regions?

Adam Langworthy, Keith Pembleton, Richard Rawnsley,Matthew Harrison, Peter Lane, David Henry and Ross Corkrey

Full Paper
Increasing the seed production of summer-dormant, drought-tolerant cocksfoot

Mark R. Norton

Full Paper
Stoloniferous red clover cv. Rubitas is a valuable companion to PRG and phalaris

Brigid Watson, Keith Pembleton, Rowan Smith, Ross Corkrey and Richard Rawnsley

Full Paper
Comparing within paddock yield variability of perennial ryegrass monocultures and perennial ryegrass, white clover and plantain mixtures using yield mapping

David K. McLaren, Keith G. Pembleton

Full Paper
A preliminary evaluation of alternative annual legume species under grazing on the Southern Tablelands of NSW

Richard C. Hayes, Graeme A. Sandral, Richard Simpson, Andrew Price, Adam Stefanski and
Matthew T. Newell

Full Paper

Emissions

Life Cycle Assessment of Grain Cropping

Aaron Simmons, Sally Muir, Pip Brocl, David Herridge

Full Paper
Greenhouse Gas mitigation potential and profitability of practices on Australian grain farms

Elizabeth Meier, Peter Thorburn, Marit Kragt, Nikki Dumbrell and Jody Biggs

Full Paper
N2O mitigation opportunities in subtropical cereal and fibre cropping systems – a modelling approach

Henrike Mielenz, Peter J Thorburn, Clemens Scheer, Mike J Bell, Peter R Grace

Full Paper
The effect of variable nitrogen fertiliser rates on indirect nitrous oxide emissions and losses from furrow-irrigated cotton production

Alice Devlin, Yvonne Ye Fen Chang, Ben Macdonald

Full Paper
Potential for summer active grasses to minimise gaseous soil N losses

M.E. McNee, K.C. Flower, L. Nazaries, S. Manalil, B.K. Singh

Full Paper
High nitrous oxide emissions from irrigated maize in northern Victoria

Ashley Wallace, Damian Jones, Rohan Pay, Roger Armstrong

Full Paper

Climate Change

Cotton production in a changing climate

Qunying Luo, Michael Bange, David Johnston and Michael Braunack

Full Paper
Simulation Modelling of Alternative Strategies for Climate Change Adaptation in Rainfed Cropping Systems in North-Western Cambodia

Van Touch, Robert Martin, De Li Liu, Annette Cowie, Fiona Scott, Graeme Wright, Yash Chauhan

Full Paper
Impact of projected climates on drought occurrence in the Australian wheatbelt

James Watson, Bangyou Zheng, Scott C. Chapman and Karine Chenu

Full Paper
Evaluation of a climate model consensus forecast for Victorian farmers, seven years on

Dale Grey, and Graeme Anderson

Full Paper
Different response of soil and crop sequences to climate change in Western Australian mixed farm systems

Afshin Ghahramani, Dane S. Thomas, Peter T. Hayman, Andrew D. Moore

Full Paper

Managing Productive and Sustainable Landscapes

Is mosaic irrigation a viable proposition for north Australian beef enterprises?

Neil MacLeod, Di Mayberry, Lindsay Bell and Ian Watson

Full Paper
Monitoring impacts from broadscale resource development on surface water flows in agricultural landscapes

Perry L Poulton, Neil I Huth, Peter Caccetta, Brett Cocks, Jeremy Wallace, Xiaoliang Wu

Full Paper
A synthesis of agronomy for productive, diverse and sustainable landscapes

Guy Roth, Angela Bradburn, Jane Trindall, Allan Williams

Full Paper
Identifying areas where coal seam gas development may assist agricultural intensification

Ethel B. Samalca,Neil I. Huth,and Geoff Slaughter

Full Paper
High intensity, short duration livestock grazing management improves landscape function, and increases species richness and abundance of ground-layer insects on grazing properties of the northern slopes and tablelands of NSW, Australia

Rachel Lawrence, Nick Reid, Romina Rader

Full Paper

Yield Gap and Performance

Patterns of dry matter production, allocation and water use in perennial wheat

Jesmin Aktar, Sergio Moroni, Mark Norton and Len J. Wade

Full Paper
Visualizing yield gaps in Australia’s wheat cropping zone

Zvi Hochman, David Gobbett, Heidi Horan, Javier Navarro Garcia.

Full Paper
Are future yield gains in wheat of 1.5% per year achievable?

Michael Robertson, Greg Rebetzke, John Kirkegaard, Rick Llewellyn, Tim Wark

Full Paper
Yield Performance of Temperate and Tropical Rice Varieties in the Ord

Siva Sivapalan

Full Paper
Biotic and abiotic factors affecting potato yields in Canterbury, New Zealand

A.J. Michel1, S.M. Sinton, R.E. Falloon, F.A. Shah, S.J. Dellow, S.J. Pethybridge

Full Paper
Source-sink manipulation in canola (Brassica napus L.) indicates that yield is source limited

Heping Zhang and Sam Flottmann

Full Paper
Evaluation of commercial rice hybrids under local conditions in Battambang, Cambodia

Karomo N.F. Browne, Daniel K.Y. Tan, Robert Martin, Yorn Try, William Rathmell, Peter Sharp

Full Paper

Crop Establishment

On-row seeding as a tool for management of water repellent sands

Phil Ward, Margaret M. Roper, Ramona Jongepier, Shayne Micin  and Stephen Davies

Full Paper
Defining optimum plant population and row configuration for sunflower in northern NSW

Loretta Serafin

Full Paper
Impact of Seeding Density and Time of Sowing on Soybean Productivity in Southern NSW

Mark Richards, Luke Gaynor, Alan Boulton and Neil Coombes

Full Paper
Effect of 1 m and 1.5 m row spacing on yield and fibre quality of upland cotton (Gossypium hirsutum) in Warren, NSW, Australia

Richard A. Quigley, Daniel K.Y. Tan, Rose Brodrick

Full Paper
The effect of fertiliser placement and row spacing on plant establishment and grain yield of three broad leaf (Lupinus albus) and three narrow leaf (L. angustifolius) lupin varieties

Eric Koetz, Karl Moore, Barry Haskins and Peter Martin

Full Paper
Does varying sorghum row configuration stratify soil nitrogen?

Loretta Serafin, Guy McMullen

Full Paper
Extent and Attitudes of Dry Seeding in the Agro Ecological zones of Western Australia

Mathew McNee, Andrew Fletcher, David Minkey Lauren Celenza

Full Paper

Crop Phenology

Identifying the optimal flowering period for wheat in Australia: A simulation study

B.M. Flohr, J.R. Hunt, J.A. Kirkegaard, J.R. Evans

Full Paper
Dry matter partitioning in canola (Brassica napus L.) and the impacts on  grain yeild in the High Rainfall Zone of south-eastern Australia

Penny Riffkin, Brendan Christy, Garry O’Leary, Debra Partington

Full Paper
Novel wheat genotypes for early sowing across Australian wheat production environments

James Hunt, Ben Trevaskis, Andrew Fletcher, Allan Peake, Alec Zwart, Neil Fettell 

Full Paper
Floral initiation in maize is regulated by the growth of leaf primordia

Stephen E Ockerby, Zongjian Yang

Full Paper
Effect of anthesis date on grain yield and yield components of wheat – Trangie 2009-2012

Rohan Brill

Full Paper
Can the duration of the spike construction phase increase the yield of wheat?

Tina Botwright Acuña, Penny Riffkin, Angela Merry, Brendan Christy, Richard Richards, Heping Zhang, Jens Berger, Garry O’Leary, Debra Partington

Full Paper
Phenotypic plasticity of grain yield in oat and its association with agronomic and phenological traits

Mahadevan, Victor O. Sadras, Pamela K. Zwer

Full Paper
Simulated wheat phenology is improved when local temperature is used

Dane Thomas, Peter Hayman

Full Paper
APSIM Kale appropriately simulates spring and autumn grown forage kale crops in Tasmania

K.G. Pembleton, M.T. Harrison, R.P. Rawnsley, R. Zykowski , E Chakwizira, J. de Ruiter, P.R. Johnstone

Full Paper

Pasture Management

Lamb growth rates on pasture: assessing options for finishing lambs in spring

Shawn McGrath, Graeme Sandral, Michael Friend

Full Paper
Economic value of grazing inter-cropping in the high rainfall zone of Southern Australia

B. Christy, T. McLean, Tocker, Z. Nie, R. Harris

Full Paper
Alternate row sowing: a novel approach to maintaining sown spices in mixed pasture swards

Graeme A. Sandral, Tony D. Swan, Guangdi D. Li, Laura Goward, Mark B. Peoples and Richard C. Hayes

Full Paper
The effects of deficit irrigation strategies on soil water content under Lucerne

Mary-Jane Rogers, Alister Lawson, Kevin Kelly

Full Paper
Optimising Italian ryegrass sowing rates

Martin Harmer

Full Paper
Nitrate and sulphate accumulating shrubs to reduce methane emissions in sheep

Hayley C Norman, Matt G. Wilmot, Paul Young P,  Andrew Toovey, Dean Thomas, Xixi Li, Miranda Macintyre, Joshua K. Hendry, Elizabeth Hulm

Full Paper
Evaluation of short-term fodder options between cropping phases in Tasmania

Geoff J. Dean, Angela M. Merry and Rowan W. Smith

Full Paper

Pastures and P

100 Years of superphosphate addition to pasture in an acid soil

Kirsten M Barlow and Cassandra R Schefe.

Full Paper
Phosphorus efficient pastures: legume root traits for improved nutrient foraging

Rebecca Haling, Zongjian Yang, Natalie Shadwell, Richard Simpson, Richard Culvenor, Adam Stefanski, Graeme Sandral, Daniel Kidd, Hans Lambers, Megan Ryan

Full Paper
Which fertiliser phosphorus management strategy for maximum clover production and fertiliser phosphorus efficiency?

Timothy I. McLaren, Therese M. McBeath, Richard J. Simpson, Michael J. McLaughlin, Ronald J.Smernik, Christopher N. Guppy, Alan E. Richardson

Full Paper
Factors affecting pasture productivity in topographically variable landscapes -implications for pasture input management

Belinda Hackney, Peter Orchard, David Kemp, Beverly Orchard

Full Paper
Phosphorus efficient pastures: response of alternative legumes to fertiliser application

Graeme Sandral, Richard Simpson, Andrew Price, Shane Hildebrand, Chris Fuller, Adam Stefanski, Zongjian Yang, Richard Culvenor, Daniel Kidd, Hans Lambers, Megan Ryan

Full Paper
Phosphorus efficient pastures: variation in mycorrhizal colonisation of subterranean clover

Megan Ryan, Daniel Kidd, Zongjian Yang, Richard Culvenor, Adam Stefanski, Graeme Sandral, Hans Lambers, Rebecca Haling, Richard Simpson

Full Paper

Nutrient Use And Efficiency

Recovery of 15N urea fertiliser applied to wheat under different nitrogen (N) management, in the High Rainfall Zone of south western Victoria

Rob Harris, Roger Armstrong and Ash Wallace

Full Paper
Nitrogen use efficiency in summer sorghum grown on clay soils

M. Bell, D. Lester, M. De Antoni Migliorati, D. Rowlings, P. Grace

Full Paper
Nitrogen removal and use on a long term fertilizer experiment

Rob Norton, Charlie Walker, Craig Farlow

Full Paper
Nitrogen use efficiency for pasture production – impact of enhanced efficiency fertilisers and N rate

Helen Suter, Shu Kee Lam, Charlie Walker and Deli Chen

Full Paper
Development of nitrogen dilution curves for current Australian wheat varieties

Marianne Hoogmoed, Victor Sadras, Barry Mudge, Sarah Noack, Rob Wheeler

Full Paper

Rotations/Canola

The effect of agronomic management on gross margins from crop sequences in the high rainfall zone of south western Victoria

Corinne Celestina, Jon Midwood, Mark Peoples, Laura Goward, Tony Swan, James Hunt and Rob Harris

Full Paper
Simulating grain and grazing yield of diverse canola cultivars in the high rainfall zone

Julianne M Lilley, Lindsay W Bell, John A Kirkegaard

Full Paper
Turning sowing times on their head- spring sown winter habit canola and wheat in a mixed farming system

Annieka Paridaen

Full Paper
Using broadleaf crops to improve wheat grain yield and on farm profitability

Guangdi Li1, Mark Peoples, Richard Lowrie, Adam Lowrie, Tony Swan, and Laura Goward

Full Paper
Planning horizon, commodity price and weed burden influence the number of break crops in a crop sequence

Roger Lawes, Caroline van Der Zee

Full Paper
Achieving modelling of pasture-cropping systems with APSIM and GRAZPLAN

Penny Roberts Craig, Warwick Badgery, Geoffrey Millar, Andrew Moore

Full Paper
Adding value through pasture and fodder break crops- is the current break crop broken?

Annieka Paridaen, Corinne Celestina, Aaron Vague, Simon Falkiner, David Watson, Cam Nicholson

Full Paper
Farm level considerations of sowing date for canola and wheat

Andrew Fletcher, David Minkey, Matt McNee, Darshan Sharma, Doug Abrecht, Penny Roberts-Craig

Full Paper

Partitioning

Response to competition and association with yield of chickpea

Lachlan Lake, Victor O. Sadras

Full Paper
Change in biomass partitioning and transpiration efficiency in Australian wheat varieties released over the last decades

Andrew Fletcher, Karine Chenu

Full Paper
Yield components of reduced tillering wheat lines from the Yaruna multi-parent population

Dr David Bowran

Full Paper
Potential role of 3D modelling of canopy architecture to explore G x E x M interactions in wheat

Jochem B. Evers, Carina Moeller, Jim Hanan

Full Paper
3D modelling of tillering behaviour and light interception of freely (-tin) and restricted (+tin) tillering wheat near-isolines

Carina Moeller, Jochem B. Evers, Greg Rebetzke

Full Paper
Phenology, leaf and yield production patterns of sweet pepper under irrigated seasonal dry lowlands conditions, Papua New Guinea

J. Nivi, C. J. Birch, M. Boersma, L. Sparrow, A. Gracie

Full Paper

Cold Adaption

Floral morphology in rice grown under cold temperatures at booting and flowering and its effect on spikelet sterility

Zuziana Susanti, Jaquie Mitchell, Shu Fukai

Full Paper
Closing the gap: linking phenotype to genotype in rice lines contrasting for cold adaptation

Jaquie Mitchell, Siti Zulkafli, Brad Campbell, Peter Snell, Ian Godwin, Shu Fukai

Full Paper
Predicting heading date and frost impact in wheat across Australia

Bangyou Zheng, Scott Chapman, Jack Christopher, Troy Frederiks, Karine Chenu

Full Paper
Modelling the impact of frost on wheat production in Australia

Kirsten Barlow,  Brendan Christy, Garry O’Leary and James Nuttall

Full Paper
Cold temperature under aerobic conditions increases spikelet sterility in rice (Oryza sativa L.)

Christopher Proud, Muneer Hammadi, Robyn Cave, Jacquie Mitchell, Shu Fukai

Full Paper
Use of chemical protective products to change the ability of wheat to tolerate frost

Michael Zerner, Tim March, Jason Eglinton, Ben Biddulph

Full Paper

Pasture Breeding

MLA – Investing in feedbase production

Dr Tom Davison

No Paper
Potential new cultivars of phalaris for the medium rainfall (450-550 mm) mixed farming zone in southern New South Wales

Richard Culvenor, Mark Norton

Full Paper
Plantain and chicory could potentially complement the perennial ryegrass dominant dairy feedbase

K.G. Pembleton

Full Paper
An investigation of the social sustainability of genetically modified rye grass forage in New Zealand

B H. Small, T. Chikazhe, N. Botha, R. Tipples, K. Old

Full Paper
Sirolan phalaris and Kasbah cocksfoot prove more persistent than lucerne under drought in a medium rainfall cropping environment

Richard C. Hayes, Guangdi D. Li, Mark R. Norton

Full Paper
The development of a mid-season barrel medic (Medicago truncatula Gaertn.) cultivar with tolerance to sulfonylurea herbicide residues

David Peck, Ross Palmer, David Hawkey, Ross Ballard, Klaus Oldach, Tim Sutton and Jake Howie

Full Paper

Managing Seasonal Variability

Near-term pasture growth rate forecasts: which method works best?

Richard P. Rawnsley, Matthew T.  Harrison, David C. Phelan, Ross Corkrey, David A.Henry

Full Paper
Adapting irrigated and dryland farming systems to climate change and extreme weather events: is simplification or intensification more effective?

Matthew Harrison, Brendan Cullen, Dan Armstrong, Richard Rawnsley

Full Paper
Can Modelled Soil Moisture with the Southern Oscillation Index Predict Poor Spring Pasture Production?

Jane E. Court, Richard J. Eckard, and Frank R. Dunshea

Full Paper
Can seasonal forecasting minimise the threats of climate variability to achieve profitable crop-livestock productions in NSW

Muhuddin Rajin Anwar, Jing-Jia Luo, Oscar Alves, Timothy Sides, Griffith Young, Jason Crean, Anthony Clark, Ian McGowen

Full Paper
Characterization of maize growing environments in eastern and southern Africa using the APSIM model

Solomon Seyoum, Chauhan Yash, Rachaputi Rao, Fekybelu Solomon and Prasanna Boddupalli

Full Paper

Systems and Tillage

Assessing long-term (2004 to 2014) effects of rotation and tillage on grain yield and soil C and N of a medium rainfall temperate cropping system

RD Armstrong, R Perris, M Munn, FA Robertson, K Dunsford

Full Paper
Biodiesel production in New Zealand – opportunities and considerations

Jeff McCormick, Bruce Smallfield, Vonny Fasi, Alan Gash, Bruce McKenzie

Full Paper
A review of annual intercrops in rainfed farming systems of southern Australia

Andrew Fletcher, Mark Peoples, John Kirkegaard, Michael Robertson, Jeremy Whish, Tony Swan

Full Paper
Industrial hemp in New Zealand – cash cropping for a better environment

Huub Kerckhoffs, Yasemin Kavas, James Millner, Chris Anderson, Eve Kawana-Brown

Full Paper
Measuring farming practices used on cotton farms

Ingrid Roth

Full Paper
Comparison of stubble management strategies in the high rainfall zone

Geoff J. Dean and Angela M. Merry

Full Paper

Managing Productive And Sustainable Landscapes – Land Management

Back to the future. Big data opportunities for Australian grain growers

Mark Luckey

Full Paper
Soil-landscape effects on plant available water capacity (PAWC)

Kirsten Verburg, Mark Glover, Neil McKenzie, Anne Jackman, Harm van Rees, Neal Dalgliesh

Full Paper
Farming practices at the landscape scale: a novel approach investigating rotations in the WA wheatbelt

Myrtille Lacoste, Roger Lawes, Olivier Ducourtieux, Ken Flower

Full Paper
Soil is the mirror of landscapes: Reflections on the legacy and future of soil knowledge management for sustainable farming

L. A. Lobry de Bruyn and A. Jenkins

Full Paper
Smallholder farmer innovation. 1. Replacing transplanted rice monoculture with direct seeded rice based cropping systems.

Ashok Kumar, Murray Unkovich, Bill Bellotti

Full Paper

Managing Productive And Sustainable Landscapes – Rice

Combining field trials and crop modelling of dry direct seeded rice to reduce production risks in Lao PDR under current and future climates

Alison Laing, Christian H Roth, Donald S Gaydon, Vanthong Phengvichith, Sipaseuth, Khammone Thiravong, Sysavanh Vorlasan, John Schiller

Full Paper
Resilience of smallholder farmers in Cambodian lowland rice ecosystems in managing for future climate uncertainty

Perry L Poulton, Neal P Dalgliesh, Say Vang, Touch Veasna, Philip Charlesworth

Full Paper
Validation of APSIM for long duration rice varieties in different agro-climatic zones of Sri Lanka

M.E.K.K. Fernando, D.A.B.N. Amerasekara, R.K. Amarasingha, L.D.B. Suriyagoda, B. Marambe, L.W. Galagedara, G.L.L.P. Silva, R. Punyawardena, D. Parsons and H. Meinke

Full Paper
Entry points for eco-efficient alternative rice production system in Punjab, Pakistan

M.I. Awan, H. Meinke, P. van Oort, L. Bastiaans

Full Paper

Heat Stress

Field-screening for crop adaptation to heat stress: untangling confounded effects of sowing date trials

V.O. Sadras, V. Vadez, L. Lake1, H. Marrou, R. Purushothaman

Full Paper
Heat shock response in wheat under Free Air CO2 Enrichment

James Nuttall, Kirsten Barlow, Brendan Christy, Garry O’Leary and Glenn J Fitzgerald

Full Paper
Heat stress effects on grain sorghum productivity- biology and modelling

Vijaya Singh , Chuc Thi Nguyen , Erik van Oosterom , David Jordan , Scott Chapman , Bangyou Zheng and Graeme Hammer

Full Paper
Genetic variation in wheat pollen heat tolerance

Olivia Agar, Daniel K.Y. Tan, Deborah A. Barton, Richard M. Trethowan

Full Paper
South East Australian grain growers and advisors rate grain filling heat as a greater risk than frost

Dale Grey, James Nuttall and Kirsten Barlow

Full Paper
Association between wheat yield and temperature in south-eastern Australia

Victor Sadras, Fernanda Dreccer, Justin Fainges

Full Paper
Genotypic heat tolerance in lentil

Audrey Delahunty, James Nuttall, Marc Nicolas, Jason Brand

Full Paper

Weeds and Herbicides

Harvest weed seed control: ryegrass seed retention levels in south-eastern Australia wheat crops

John Broster, Michael Walsh, Charlotte Aves, Stephen Powles

Full Paper
Improving herbicide tolerance in pulses to support the diversification of Australian crop rotations

Dili Mao, Jeff Paull, Chris Preston, Chris Dyson, Shi Ying Yang, Larn McMurray

Full Paper
Dual direction allelopathy: the case of canola, wheat and annual ryegrass

J R Moore, Md Asaduzzaman and J E Pratley

Full Paper
Flaxleaf fleabane management in cropping systems of southern Australia

Ben Fleet, Christopher Preston, Gurjeet Gill

Full Paper
The extent of herbicide resistance in Tasmanian wild radish populations

John Broster, Allison Chambers, Leslie Weston

Full Paper
A quick test for glyphosate resistance in annual ryegrass

Aaron Preston, Joseph Moore, Jim Pratley and Gabriel Thelen

Full Paper
On-farm demonstrations of low-input methods for establishing legumes in central Queensland

Joe O’Reagain, Gavin Peck, Stuart Buck, Scott Stevens

Full Paper

Pasture Roots and Nutritive Characteristics

Influence of fungal endophyte on plant water status, non-structural carbohydrate content and biomass partitioning in Brachiaria grasses grown under drought stress

Kennedy Odokonyero, Juan Andres Cardoso Arango,  Juan de la Cruz Jimenez Serna, Idupulapati Madhusudana Rao and Tina Botwright Acuña

Full Paper
Broad NIRS calibrations to predict nutritional value of the southern feedbase

Hayley C Norman, Elizabeth Hulm, Alan W Humphries, Steve J Hughes, Robert Law, Trevor Rowe, Phil E Vercoe

Full Paper
Changes in rhizobia population over time in inoculated and uninoculated lucerne plants

Kathryn Wigley, Hayley Ridgway, Qakathekile Khumalo, Derrick Moot

Full Paper
Soil carbon storage in the root zone of a perennial grass pasture

Phil Ward, Rob Wocheslander, David Ferris, Clinton Revell, Richard Harper

Full Paper
Lucerne root dynamics under defoliation regimes

Steve Clark, Zhongnan Nie, Meredith Mitchell, Vivianne Burnett, Kevin Smith, Kym Butler, Reto Zollinger, Greg Seymour

Full Paper
Distribution of lucerne roots in summer-dry environments of southern Australia

Zhongnan Nie, Meredith Mitchell, Steve Clark Kevin Smith, Vivianne Burnett, Reto Zollinger, Greg Seymour

Full Paper
Nitrogen uptake and nitrogen use efficiency of forage kale crops grown under varying amounts of water and nitrogen fertiliser rates in shallow soils

E. Chakwizira, J.M. de Ruiter and S. Maley

Full Paper

Nutrient Management  1

The feasibility of fertilising oats and forage sorghum with nitrogen and phosphorus in the brigalow belt of Queensland

Stuart Buck, David Lawrence, Fred Chudleigh

Full Paper
Managing nitrogen nutrition under intensive cropping in low rainfall environments

Therese McBeath, Vadakattu Gupta, Rick Llewellyn, Bill Davoren and Michael Moodie

Full Paper
Nitrogen management: a key driver of farm business profit and risk in the low rainfall Mallee

Michael Moodie, Therese McBeath, Ed Hunt, Jackie Ouzman, Marta Monjardino, Rick Llewellyn, Bill Davoren

Full Paper
Postnormal thinking: The need for a better understanding of what oil vulnerability will mean for Australian agriculture

Donald Hugh Coventry

Full Paper
Improving WUE of canola in central NSW

Rohan Brill, Maurie Street, Leigh Jenkins

Full Paper
Determining the extent of declining pasture productivity with nitrogen fertiliser

Stuart Buck, Brian Johnson, David Lawrence, Gavin Peck, Graham Kedzlie, Bradley Taylor, Rod
O’Connor, Joe O’Reagain, Suzette Argent, Tim Emery, Gina Mace

Full Paper
‘Topping up’ wheat with foliar P: getting the right combination of P formulation and adjuvant

Courtney Peirce, Evelina Facelli, Therese McBeath and Mike J. McLaughlin

Full Paper
Production interactions between combinations of 4 perennial legumes and 5 perennial grasses, grown under high input management with and without applications of nitrogen

Rowan Smith, Eric Hall, Ross Corkrey, David Parsons, Keith Pembleton, and Richard Rawnsley

Full Paper

Nutrient Placement

A bioeconomic framework for phosphorus deep placement decisions

Andrew Zull, Mike Bell, Howard Cox, Jayne Gentry, Kaara Klepper

Full Paper
NPK fertilisers as agents for the biofortification of trace elements in wheat

Elliott Duncan, Margaret Roper, Cathryn O’Sullivan and Mark Peoples

Full Paper
Lessons learnt about nitrogen and phosphorus from a 30 year study in a sub-tropical continuous cropping system on a vertosol

Bede O’Mara, Charlie Walker 

Full Paper
Effect of deep placement of NPK briquette for rice yield maximization during Boro, T Aus and T Aman seasons at different locations in Bangladesh

A.B.S Sarker,G. Ali, M. A. J. Mridha and M A Mazid Miah

Full Paper
Adding sulfur to finished fertilisers: inside or outside?

Graeme Blair, Watson Matamwa, Isa Yunusa and Michael Faint

Full Paper
Response to deep placed P, K and S in central Queensland

Bell, D. Sands, D. Lester, R. Norton 

Full Paper
Modelling soil organic carbon 2. Effects of stocking rate, nitrogen fertiliser and stubble retention on changes across farming systems in eastern Australia

De Li Liu, Garry O’Leary, Yuchun Ma, Annette Cowie, Frank Li, Malcolm McCaskill, Mark Conyers, Ram Dalal, Fiona Robertson and Warwick Dougherty

Full Paper
Subsoil manuring in the high rainfall zone: a practice for ameliorating subsoils for improved productivity

R Peries and J S Gill

Full Paper
Crop productivity and profitability improved by high analysis granular P over liquid P or rock phosphate

Colin McMaster, Remy ven de Ven

Full Paper

Carbon Farming

Why do farmers partially adopt conservation farming practices? A sociological study of stubble retention in NSW and Victoria

Vaughan Higgins, Caroline Love, Tony Dunn, Deirdre Lemerle

Full Paper
Quantifying the effect of soil organic carbon on wheat yield: a simulation study

Jeda Palmer, Peter Thorburn, Jody Biggs, Merv Probert, Neil Huth, Joshua Larsen

Full Paper
What carbon farming activities are farmers likely to adopt?

Nikki P. Dumbrell, Marit E. Kragt, Fiona L. Gibson

Full Paper
Modeling the effects of mixed farming systems on soil carbon and crop-livestock productivity in central-west NSW

Muhuddin Rajin Anwar, Warwick Badgery, James Mwendwa, Neville Herrmann, Andrew D. Moore

Full Paper
Developing conservation agricultural innovations and practice change: a model for future research, development, extension and training in a brave new world

Deirdre Lemerle, Iain Hume, Toni Nugent, Vaughan Higgins , Caroline Love, Deb Slinger, Raylene Brown, Mark Harris, Tony Pratt, James Mwendwa, Russell Ford and Megan Beveridge

Full Paper
Modelling soil organic carbon 1. The value of long term agronomic experimental data

Garry O’Leary, De Li Liu, Yuchun Ma, Frank Li, Malcolm McCaskill, Mark Conyers, Ram Dalal, Steven Reeves, Kathryn Page, Yash Dang and Fiona Robertson

Full Paper

Workshop

3D Modelling Workshop: Simulation of crop growth and development

Dr Jochem Evers

Workshop participants will need to download software and bring along your laptop.

No Paper

Crop Response to CO2 

Effects of future atmospheric CO2 concentration on the productivity and nitrogen fixation of pulses under Free Air CO2 Enrichment

M. Bourgault,  R. Armstrong, J. Brand, J. Nuttall, S. Tausz-Posch, S.K. Lam, M. Tausz, G. Fitzgerald

Full Paper
Using field-based Canopy EvapoTranspiration and Assimilation (CETA) chambers to assess the impact of climate change on early cotton growth

J. Broughton, P. Payton, J. Baker, C. Yates, D.K.Y. Tan, D. Tissue, M. Bange

Full Paper
Soil type influences N2 fixation in fieldpeas more than elevated CO2

R D Armstrong, M Bourgault and S.K. Lam

Full Paper
Reflectance and fluorescence measurements for wheat traits under elevated CO2

Eileen M. Perry and Glenn J. Fitzgerald

Full Paper
Influence of nitrogen supply and variety on the grain yield and protein content of wheat under elevated carbon-dioxide

R D Armstrong, M Munn, H Kozlowski, R Perris, M Tausz, S Tausz-Posch

Full Paper
Is a reduced-tillering trait (tin) beneficial under elevated CO2 in four FACE environments?

Markus Löw, S Tausz-Posch, G Rebetzke, M. F. Dreccer, S. C. Chapman, S Seneweera, G Fitzgerald, M Tausz

Full Paper

Crop Breeding

Studies on barley yellow dwarf virus (BYDV) in wheat

Meixue Zhou, Philip Larkin, Mark Schwinghamer, Brenda Coutts, Craig Birchall, Peter Johnson, Guy Westmore, Bret Davey

Full Paper
Grain quality of rainfed rice (Oryza sativa) genotypes in Central Queensland, Australia

Deepak Sharma Paudel, Sachesh Silwal, Surya P Bhattarai, David J. Midmore

Full Paper
Maize yield determination in Northern Region: Hybrid by environment by management interactions

Ariel Ferrante, Joseph Eyre, Barbara George-Jaeggli, James McLean, Karine Chenu, Peter deVoil, Greg McLean, Daniel Rodriguez

Full Paper
Interaction of Genotype, Environment and Herbicides in wheat (Triticum aestivuum L.) and barley (Hordeum vulgare L.) across a range of environments in Australia

D. J. Brunton, H. S. Dhammu, R. D. Wheeler, A. Kelly, K. Bell, P. Lockley, J. Churchett, S. Walker

Full Paper

Pasture Management

Influence of winter-grazed dual-purpose wheat and canola crops on the forage availability in a pasture-based system

Cesar S. Pinares-Patiño, Scott E. McDonald, John A. Kirkegaard, Hugh Dove, James R. Hunt, Richard J. Simpson, Andrew D. Moore

Full Paper
Joining Ewe Lambs on Dual Purpose Canola in Southern Australia

Margaret Raeside, John Byron, Caroline MacDonald, Fiona Cameron and Ralph Behrendt

Full Paper
Changed recommendations for the use of phalaris on acid soils

Richard C. Hayes, Guangdi D. Li, Richard A. Culvenor

Full Paper
 Dual-purpose crops: comparison of maternal systems grazing canola or wheat during late pregnancy and lambing then lucerne-based pasture until weaning

Shawn McGrath and Michael Friend

Full Paper
Utilisation and feed quality of two forage Brassica (Brassica napus) cultivars

D Thomas, DB Mason, M Harmer, HG Judson, D Frank and JC Sewell

Full Paper

Extension and PAR 

Drawing together information and practice through integrated on-farm research

Bounthong Bouahom, Len J. Wade, Pheng Sengxua, Tamara Jackson

Full Paper
Capacity building and external linkages assist use and integration of technology options for research and development projects

Pheng Sengxua, Tamara Jackson, E. R. Kirk, Bounthong Bouahom, Len J. Wade

Full Paper
Taking stock of agronomy research in Australia – a bibliometric analysis

James E Pratley

Full Paper
Constraints to greater use of pulses and forage legumes on acid soils of the high rainfall zone of south-eastern Australia – focus groups and a farmer survey

Helen Burns, Mark Norton

Full Paper
Smallholder farmer innovation. 2.  Facilitating farmer agency through experimentation and learning about cropping systems

Ritesh Pandey, Gavin Ramsay, Bill Bellotti

Full Paper

Weeds, Pests and Disease

Profitable crop sequences to reduce ryegrass seedbank where herbicide resistant ryegrass is a major constraint to the sustainability of cropping systems

Tony Swan, Laura Goward, James Hunt, John Kirkegaard, Tony Pratt, Mark Peoples

Full Paper
Weed management as a key driver of crop agronomy

Rick S. Llewellyn, Jackie Ouzman, Allan Mayfield, Steve Walker, David Ronning, Michael Clark

Full Paper
“Buying a spring” – the water and nitrogen cost of poor fallow weed control

Colin McMaster, Neroli Graham, John Kirkegaard, James Hunt, Ian Menz

Full Paper
Crop-topping and desiccation are valuable tools for weed control in pulses

Eric Armstrong, Gerard O’Connor, Luke Gaynor, Sarah Ellis and Neil Coombes

Full Paper
The effect of crop rotations on the incidence of crown rot in wheat

Eleanor A. Readford, Daniel K.Y. Tan, Raju Tokachichu, Richard M. Trethowan

Full Paper
Improved early wheat growth after millet and cowpea in the central cropping belt of Western Australia

M.E. McNee, K.C. Flower

Full Paper

Irrigation, Water Management 

Effects of Sprinkler irrigation applications during post flowering period on flower development and Pyrethrin accumulation in Pyrethrum

Dilnee Suraweera, Tim Groom, Marc Nicolas

Full Paper
Evaporation and crop transpiration; behind the water use efficiency paradigm

Murray Unkovich, Jeff Baldock, Ryan Farquharson

Full Paper
Yield advantage and water productivity of maize-mungbean inter-cropping systems in the dry zone of Sri Lanka; a modelling approach

R.K. Amarasingha, L.D.B. Suriyagoda, B. Marambe, L.W. Galagedara, G.L.L.P. Silva, R.  Punyawardena, U. Nidumolu, M. Howden, D. Parsons and H. Meinke

Full Paper
Data requirements for automated model-based control of irrigation and fertiliser application

Alison McCarthy and Steven Raine

Full Paper

Agricultural Systems Research

This panel session will engage all participants in a discussion about the challenges of intensifying cool temperate agriculture, and the potential for agricultural systems research to address these challenges.

The scene for a 45 minute discussion will be set by four 10 minute presentations from global, regional and local perspectives.

It builds on field trip 3 – The Midlands.

Click here for a full overview.

The potential of agricultural systems research to support the irrigation-based intensification of Tasmania agriculture

Associate Professor Rohan Nelson

The global experience – the role of systems thinking in the sustainable intensification of cool temperature agriculture

Professor Martin Kropff

Delivering value from agricultural systems research: some examples of success and new challenges for systems modelling

Dr Peter Thorburn

The New Zealand Institute for Plant & Food Research Limited        The New Zealand experience – systems approaches to sustainably intensifying cool temperature agriculture

Dr Jo Sharp

Management and PGR’S

Plant growth regulator use in broad acre crops

Tina Botwright Acuna, Angela Merry, Anna Carew, Peat Leith

Full Paper
Re-evaluating mepiquat chloride use in Bollgard II cotton

Sandra Williams and Michael Bange

Full Paper
Management for premium cotton fibre

Robert Long and Michael Bange

Full Paper
Thin oxodegradable film and profile soil water under cotton

Braunack, H. McWhirter, P. Carter

Full Paper
Improved temperature for maize growth using clear polymer film

Michael Tarbath, Shaun Lisson, Tina Botwright Acuña, Libby Pinkard, Bronwyn Laycock

Full Paper
Drivers of high yielding irrigated canola production

Tony Napier, Luke Gaynor, Deb Slinger, Neroli Graham and Cynthia Podmore

Full Paper
Maize (Zea mays L.) productivity as influenced by sowing date and nitrogen fertiliser rate at Melkassa, Ethiopia: parameterisation and evaluation of APSIM-Maize

Tewodros Mesfin, Carina Moeller, David Parsons, and Holger Meinke

Full Paper
What are the effects of chlormequat and trinexapac-ethyl alone or in combination on lodging, height and yield of winter wheat in Tasmania?

Angela M. Merry, Geoff Dean, Tina Botwright Acuña

Full Paper
Response to metsulfuron-methyl and dicamba in wheat (Triticum aestivuum L.) and barley (Hordeum vulgare L.) cultivars

J. Brunton and R. D. Wheeler

Full Paper

Tropical Pastures

Defining sowing windows for perennial tropical grasses in the low rainfall zone of Australia

Andrew P. Smith, Rick S. Llewellyn

Full Paper
Improving the reliability of establishing legumes into grass pastures in the sub-tropics

A. Peck, J. O’Reagain, B. Johnson, G. Kedzlie, B. Taylor, S. Buck, G. Mace

Full Paper
Factors affecting the adoption of tropical grasses in the Northern Agricultural region of WA

Perry Dolling, Geoff Moore, David Ferris

Full Paper
Medics in southern Queensland: Effects of sowing method, weed control and phosphorus application on plant population and biomass

Joe O’Reagain, Brian Johnson, David Lawrence, Gavin Peck, Graham Kedzlie, Bradley Taylor, Rod O’Connor, Stuart Buck, Suzette Argent, Gina Mace

Full Paper
Evaluation of temperate legumes for use in tropical perennial grass pastures in central western NSW

C.M. Waters, S.P. Boschma, G.J. Melville, I.D. Toole

Full Paper
Nitrogen fertiliser may pay on tropical grass pastures

David Lawrence, Stuart Buck, Fred Chudleigh, Brian Johnson and Gavin Peck

Full Paper
Is summer sowing as effective as winter sowing for introducing serradella into subtropical perennial grass pastures?

Christiaan Valentine, Geoff Moore, David Ferris and Perry Dolling

Full Paper
An analysis of R, D & E needs of cropping rotations with kikuyu pastures on the south coast of Western Australia

Perry Dolling, Christiaan Valentine, David Ferris

Full Paper

Nutrient Processes

Metabolites and biological entities in Victorian dairy farm soils and their relationships to management

Michael William Heaven, Sharon Aarons, Pauline Mele, Lori Phillips, Brunda Nijagal, Thusi Rupasinghe, Dedreia Tull, Murray Hannah, Amsha Nahid, Jenny Collins, Ivor Awty, Tony Cook, Kelly Rentsch, George Croatto, Thomas Baker

Full Paper
Phosphorus requirements for cereals: what role does crop rotation play?

Andreas Neuhaus, James Easton, Charlie Walker

Full Paper
Mycorrhizal status in the rotation: the importance to subsequent cotton establishment

J R Moore, J E Pratley, R Malone K O’Keeffe and K A Kirkby

Full Paper
Identification of the critical factors of System of Rice Intensification (SRI) for maximizing Boro rice yield in Bangladesh

A.B.S Sarker , Najrul Islam and M. A. Samad

Full Paper
In situ acidulation of rock phosphate

Watson Matamwa, Isa Yunusa, Graeme Blair, Chris Guppy

Full Paper
Phosphorus fertiliser requirements of rice under alternate wetting and drying irrigation in the Vietnamese Mekong Delta

Leah Garnett, Jason Condon, Chau Minh Khoi, Ben Macdonald

Full Paper
Response of the DCAD of plantain to potassium fertilisation

G. Pembleton, B. D. Hill, R. P Rawnsley

Full Paper
Brown manuring pulses on acidic soils in southern NSW – is it worth it?

Eric Armstrong, Gerard O’Connor, Luke Gaynor, Sarah Ellis and Neil Coombes

Full Paper

Nutrient Management 2

Nutrient status of soils and crops in the high rainfall zone of Victoria and South Australia

A. Clough, R. Norton, P.A. Riffkin, D. L. Partington, B. Christy

Full Paper
Estimating in-crop Nitrogen mineralisation in dryland cropping systems of southern Australia

K Dunsford,, R Armstrong, C Tang & P Sale

Full Paper
Can advances in climate forecasts improve the productive and environmental outcomes from nitrogen fertiliser on wheat? A case study using POAMA for topdressing wheat in South Australia

Peter Hayman, Bronya Cooper, Kevin Parton, Oscar Alves, Griffith Young, Beverley Henry and Clemens Scheer

Full Paper
A simple framework for profitable fertiliser use under risk and soil constraints

Amir Abadi, Imma Farre

Full Paper
High yielding wheat in the northern region: impact of nitrogen fertilisation on grain yield and quality in modern cultivars

Ariel Ferrante, Joseph Eyre, Barbara George-Jaeggli, James McLean, Karine Chenu, Peter deVoil, Greg McLean, Daniel Rodriguez

Full Paper
Profit and risk in dryland cropping: seasonal forecasts and fertiliser management

Peter C. McIntosh, Senthold Asseng, Enli Wang

Full Paper
Nitrogen Management: do barley varieties respond differently to Nitrogen?

Claire Browne and Linda Walters

Full Paper
Effect of water availability and nitrogen source on wheat growth and nitrogen-use efficiency

Eseeri Kisaakye, Tina Botwright Acuña, Peter Johnson, Sergey Shabala

Full Paper

Rotations/Legumes

“On-demand” hardseeded pasture legumes – a paradigm shift in crop-pasture rotations for southern Australian mixed farming systems

Belinda Hackney,Bradley Nutt, Angelo Loi, Ron Yates, Jane Quinn, John Piltz, Janelle Jenkins, Leslie Weston, Mike O’Hare, Anna Butcher, Colin Butcher, Ted Wolfe, John Howieson

Full Paper
Legume effects on available soil nitrogen and comparisons of estimates of the apparent mineralisation of legume nitrogen

Mark Peoples, Tony Swan, Laura Goward, James Hunt, Robert Hart Bernard Hart

Full Paper
Additional nitrogen mineralisation and crop uptake following tropical forage legumes is lower if shoot biomass is removed

Skye Gabb, Lindsay Bell, Neal Dalgliesh, Ainsleigh Wixon, Chris Guppy, Lina-May Ramony

Full Paper
Evaluation of APSIM to simulate nitrogen fixation and uptake in diverse legume species across Australia

Chao Chen, Roger Lawes, Andrew Fletcher, Yvette Oliver, Michael Robertson, Michael Bell

Full Paper
Model-based evaluation of yield performance and agronomic options for lupins in the southern wheatbelt, Western Australia

Chao Chen, Jens Berger, Andrew Fletcher, Roger Lawes, Michael Robertson

Full Paper
The residual N benefits of temporary intercropping field pea with wheat

Andrew Fletcher , Matt McNee, Gary Ogden, Michael Robertson

Full Paper
 A desktop analysis of the economics of fixed N in Australian dryland cropping rotations

Andrew Fletcher, Roger Lawes, Yvette Oliver, Chao Chen

Full Paper

Computing and Decision Support

Targeting the subsoil to better manage acidity spatially

Yvette M Oliver, Mike TF Wong, Michael J Robertson

Full Paper
Lessons from an evaluation of automated bay irrigation of pasture and fodder

Rod Smith, Jasim Uddin, Malcolm Gillies

Full Paper
Managing seasonal variability with soil moisture monitoring devices

Dale Boyd

Full Paper
Developing a profit-risk decile calculator to capture farm risk

Jackie Ouzman, Therese McBeath, Michael Moodie, Ed Hunt, Marta Monjardino

Full Paper
Improved testing of soil water balance models; an example using APSIM

Brett Robinson, Jasim Uddin, David Freebairn, David McClymont

Full Paper
IrriSAT – weather based scheduling and benchmarking technology

Janelle Montgomery, John Hornbuckle, Iain Hume, Jamie Vleeshouwer

Full Paper