Crop Updates 2007 - Cereals

This session covers twenty six papers from different authors: CEREAL BREEDING 1. Strategies for aligning producer and market imperatives in cereal breeding in Western Australia, R. Loughman, R. Lance, I. Barclay, G. Crosbie, S. Harasymow, W. Lambe, C. Li, R. McLean, C. Moore, K. Stefanova, A. Tarr and R. Wilson, Department of Agriculture and Food 2. LongReach plant breeders wheat variety trials – 2006, Matu Peipi and Matt Whiting, LongReach Plant Breeders WHEAT AGRONOMY 3. Response of wheat varieties to sowing time in the northern agricultural region in 2006, Christine Zaicou, Department of Agriculture and Food 4. Response of wheat varieties to sowing time in the central agricultural region in 2006, Shahajahan Miyan, Department of Agriculture and Food 5. Response of wheat varieties to sowing time in the Great Southern and Lakes region, Brenda Shackleyand Ian Hartley, Department of Agriculture and Food 6. Response of wheat varieties to time of sowing time in Esperance region in 2006, Christine Zaicou, Ben Curtis and Ian Hartley, Department of Agriculture and Food 7. Performance of wheat varieties in National Variety Testing (NVT) WA: Year 2, Peter Burgess, Agritech Crop Research 8. Flowering dates of wheat varieties in Western Australia in 2006, Darshan Sharma, Brenda Shackley and Christine Zaicou, Department of Agriculture and Food 9. Prospects for perennial wheat: A feasibility study, Len J. Wade, Lindsay W. Bell, Felicity Byrne (nee Flugge) and Mike A. Ewing, School of Plant Biology and CRC for Plant-based Management of Dryland Salinity, The University of Western Australia BARLEY AGRONOMY 10. Barley agronomy highlights: Time of sowing x variety, Blakely Paynter and Andrea Hills, Department of Agriculture and Food 11. Barley agronomy highlights: Weeds and row spacing, Blakely Paynter and Andrea Hills, Department of Agriculture and Food 12. Barley agronomy highlights: Weeds and barley variety, Blakely Paynter and Andrea Hills, Department of Agriculture and Food OAT AGRONOMY 13. Agronomic performance of dwarf potential milling oat varieties in varied environments of WA, Raj Malik, Blakely Paynter and Kellie Winfield, Department of Agriculture and Food 14. Sourcing oat production information in 2007, Kellie Winfield, Department of Agriculture and Food HERBICIDE TOLERANCE 15. Response of new wheat varieties to herbicides, Harmohinder Dhammu, Department of Agriculture and Food 16. Herbicide tolerance of new barley varieties, Harmohinder Dhammu, Vince Lambert and Chris Roberts, Department of Agriculture and Food 17. Herbicide tolerance of new oat varieties, Harmohinder Dhammu, Vince Lambert and Chris Roberts, Department of Agriculture and Food NUTRITION 18. Nitrogen Decision Tools – choose your weapon, Jeremy Lemon, Department of Agriculture and Food DISEASES 19. Barley agronomy highlights: Canopy management, Andrea Hills and Blakely Paynter, Department of Agriculture and Food 20. Barley agronomy highlights: Leaf diseases and spots, Andrea Hills and Blakely Paynter, Department of Agriculture and Food 21. Fungicide applications for stripe rust management in adult plant resistant (APR) wheat varieties, Geoff Thomas, Rob Loughman, Ian Hartley and Andrew Taylor; Department of Agriculture and Food 22. Effect of seed treatment with Jockey on time of onset and disease severity of stripe rust in wheat, Manisha Shankar, John Majewski and Rob Loughman, Department of Agriculture and Food 23. Rotations for management of Cereal Cyst Nematode, Vivien Vanstone, Department of Agriculture and Food 24. Occurrence of Wheat Streak Mosaic Virus in Western Australian grainbelt during the 2006 growing season, Brenda Coutts, Monica Kehoe and Roger Jones, Department of Agriculture and Food 25. Development of a seed test for Wheat Streak Mosaic Virus in bulk samples of wheat, Geoffrey Dwyer, Belinda Welsh, Cuiping Wang and Roger Jones, Department of Agriculture and Food MARKETS 26. Developing the Australian barley value chain, Linda Price, Barley Australi

Crop Updates 2005 - Cereals

This session covers thirty six papers from different authors: WHEAT AGRONOMY 1. Optimum sowing time of new wheat varieties in Western Australia, Darshan Sharma, Brenda Shackley, Mohammad Amjad, Christine M. Zaicou-Kunesch and Wal Anderson, Department of Agriculture 2. Wheat varieties updated in ‘Flowering Calculator’: A model predicting flowering time, B. Shackley, D. Tennant, D. Sharma and C.M. Zaicou-Kunesch, Department of Agriculture 3. Plant populations for wheat varieties, Christine M. Zaicou-Kunesch, Wal Anderson, Darshan Sharma, Brenda Shackley and Mohammad Amjad, Department of Agriculture 4. New wheat cultivars response to fertiliser nitrogen in four major agricultural regions of Western Australia, Mohammad Amjad, Wal Anderson, Brenda Shackley, Darshan Sharma and Christine Zaicou-Kunesch, Department of Agriculture 5. Agronomic package for EGA Eagle Rock, Steve Penny, Department of Agriculture 6. Field evaluation of eastern and western wheats in large-scale farmer’s trials, Mohammad Amjad, Ben Curtis and Veronika Reck, Department of Agriculture 7. New wheat varieties for a changing environment, Richard Richards, CSIRO Plant Industry; Canberra 8. Farmers can profitably minimise exposure to frost! Garren Knell, Steve Curtin and David Sermon, ConsultAg 9. National Variety Trials, Alan Bedggood, Australian Crops Accreditation System; Horsham 10. Preharvest-sprouting tolerance of wheat in the field, T.B. Biddulph1, T.L. Setter2, J.A. Plummer1 and D.J. Mares3; 1Plant Biology; FNAS, University of Western Australia; 2Department of Agriculture, 3School of Agriculture and Wine, University of Adelaide 11. Waterlogging induces high concentration of Mn and Al in wheat genotypes in acidic soils, H. Khabaz-Saberi, T. Setter, I. Waters and G. McDonald, Department of Agriculture 12. Agronomic responses of new wheat varieties in the Northern Agricultural Region, Christine M. Zaicou-Kunesch and Wal Anderson, Department of Agriculture 13. Agronomic responses of new wheat varieties in the Central Agricultural Region of WA, Darshan Sharma, Steve Penny and Wal Anderson, Department of Agriculture 14. EGA Eagle Rock tolerance to metribuzin and its mixtures, Harmohinder Dhammu, David Nicholson and Chris Roberts, Department of Agriculture 15. Herbicide tolerance of new bread wheats, Harmohinder Dhammu1 and David Nicholson2, Department of Agriculture NUTRITION 16. The impact of fertiliser placement, timing and rates on nitrogen-use efficiency, Stephen Loss, CSBP Ltd 17. Cereals deficient in potassium are most susceptible to some leaf diseases, Ross Brennan and Kith Jayasena, Department of Agriculture 18. Responses of cereal yields to potassium fertiliser type, placement and timing, Eddy Pol, CSBP Limited 19. Sulphate of Potash, the potash of choice at seeding, Simon Teakle, United Farmers Co-operative 20. Essential disease management for successful barley production, K. Jayasena, R. Loughman, C. Beard, B. Paynter, K. Tanaka, G. Poulish and A. Smith, Department of Agriculture 21. Genotypic differences in potassium efficiency of wheat, Paul Damon and Zed Rengel, Faculty of Natural and Agricultural Sciences, University of Western Australia 22. Genotypic differences in potassium efficiency of barley, Paul Damon and Zed Rengel, Faculty of Natural and Agricultural Sciences, University of Western Australia 23. Investigating timing of nitrogen application in wheat, Darshan Sharma and Lionel Martin, Department of Agriculture, and Muresk Institute of Agriculture, Curtin University of Technology 24. Nutrient timing requirements for increased crop yields in the high rainfall cropping zone, Narelle Hill, Ron McTaggart, Dr Wal Anderson and Ray Tugwell, Department of Agriculture DISEASES 25. Integrate strategies to manage stripe rust risk, Geoff Thomas, Robert Loughman, Ciara Beard, Kith Jayasena and Manisha Shankar, Department of Agriculture 26. Effect of primary inoculum level of stripe rust on variety response in wheat, Manisha Shankar, John Majewski and Robert Loughman, Department of Agriculture 27. Disease resistance update for wheat varieties in WA, M. Shankar, J.M. Majewski, D. Foster, H. Golzar, J. Piotrowski and R. Loughman, Department of Agriculture 28. Big droplets for wheat fungicides, Rob Grima, Agronomist, Elders 29. On farm research to investigate fungicide applications to minimise leaf disease impacts in wheat, Jeff Russell and Angie Roe, Department of Agriculture, and Farm Focus Consultants PESTS 30. Rotations for nematode management, Vivien A. Vanstone, Sean J. Kelly, Helen F. Hunter and Mena C. Gilchrist, Department of Agriculture 31. Investigation into the adaqyacy of sealed farm silos in Western Australia to control phosphine-resistant Rhyzopertha dominica, C.R. Newman, Department of Agriculture 32.Insect contamination of cereal grain at harvest, Svetlana Micic and Phil Michael, Department of Agriculture 33. Phosure – Extending the life of phosphine, Gabrielle Coupland and Ern Kostas, Co-operative Bulk Handling SOIL 34. Optimum combinations of ripping depth and tine spacing for increasing wheat yield, Mohammed Hamza and Wal Anderson, Department of Agriculture 35. Hardpan penetration ability of wheat roots, Tina Botwright Acuña and Len Wade, School of Plant Biology, University of Western Australia MARKETS 36. Latin America: An emerging agricultural powerhouse, Ingrid Richardson, Food and Agribusiness Research, Rabobank; Sydne

Crop Updates 2005 - Geraldton

This session covers seventeen papers from different authors 2005 Seasonal Outlook, David Stephens and Nicola Telcik, Department of Agriculture Horses for Courses – using the best tools to manage climate risk, Cameron Weeks, Mingenew-Irwin Group / Planfarm and Richard Quinlan, Planfarm Agronomy Global influences driving Australian agriculture, Tony Harman, Australian Government Department of Agriculture, Fisheries and Forestry Wheat yield and quality improvements – where have they come from and can we have more? Wal Anderson, Department of Agriculture Rotations for nematode management, Vivien A. Vanstone, Sean J. Kelly, Helen F. Hunter and Mena C. Gilchrist, Department of Agriculture Integrate strategies to manage stripe rust risk, Ciara Beard, Geoff Thomas, Robert Loughman, Kith Jayasena and Manisha Shenkar, Department of Agriculture Frequency of herbicide resistance in wild radish populations across the WA wheatbelt, Dr Michael Walsh, Mechelle Owen and Prof. Stephen Powels, University of Western Australia The incidence and severity of wild radish resistance in the NAR – results from an in-situ survey, Rob Grima and Andrew Blake, Elders Limited Stubble management: the pros and cons of different methods, Bill Bowden, Department of Agriculture, Mike Collins WANTFA Effectiveness of Zinc Application Methods in Wheat, Luigi Moreschi, CSBP Know your Mo, Douglas Hamilton, Department of Agriculture Atrazine contamination of groundwater in the agricultural region of Western Australia, Russell Speed1, Neil Rothnie2, John Simons1, Ted Spadek2, and John Moore1, 1Department of Agriculture, 2Chemistry Centre (W.A.) Comparison of canola varieties in the Northern Agricultural Region in 2004, Graham Walton Department of Agriculture Pasture rotations are a promising option for sandplain production, Nadine Eva, Department of Agriculture Zone management can improve profit on sandplain, Bindi Webb, Damian Shepherd, Department of Agriculture, David Forrester, Davejeff Farms, casuarinas via Geraldton, Peter Tozer, Department of Agriculture Crop leftovers: what’s in stubble for sheep? Roy Butler and Keith Croker, Department of Agriculture Realising Rural Equity, Nathan Windebank, Australian Agricultural Contracts Limite

Pratylenchus quasitereoides n. sp. from cereals in Western Australia

Hodda, Mike, Collins, Sarah J., Vanstone, Vivien A., Hartley, Diana, Wanjura, Wolfgang, Kehoe, Monica (2014): Pratylenchus quasitereoides n. sp. from cereals in Western Australia. Zootaxa 3866 (2): 277-288, DOI: 10.11646/zootaxa.3866.2.

Crop Updates 2005 - Cereals

This session covers thirty six papers from different authors: WHEAT AGRONOMY 1. Optimum sowing time of new wheat varieties in Western Australia, Darshan Sharma, Brenda Shackley, Mohammad Amjad, Christine M. Zaicou-Kunesch and Wal Anderson, Department of Agriculture 2. Wheat varieties updated in ‘Flowering Calculator’: A model predicting flowering time, B. Shackley, D. Tennant, D. Sharma and C.M. Zaicou-Kunesch, Department of Agriculture 3. Plant populations for wheat varieties, Christine M. Zaicou-Kunesch, Wal Anderson, Darshan Sharma, Brenda Shackley and Mohammad Amjad, Department of Agriculture 4. New wheat cultivars response to fertiliser nitrogen in four major agricultural regions of Western Australia, Mohammad Amjad, Wal Anderson, Brenda Shackley, Darshan Sharma and Christine Zaicou-Kunesch, Department of Agriculture 5. Agronomic package for EGA Eagle Rock, Steve Penny, Department of Agriculture 6. Field evaluation of eastern and western wheats in large-scale farmer’s trials, Mohammad Amjad, Ben Curtis and Veronika Reck, Department of Agriculture 7. New wheat varieties for a changing environment, Richard Richards, CSIRO Plant Industry; Canberra 8. Farmers can profitably minimise exposure to frost! Garren Knell, Steve Curtin and David Sermon, ConsultAg 9. National Variety Trials, Alan Bedggood, Australian Crops Accreditation System; Horsham 10. Preharvest-sprouting tolerance of wheat in the field, T.B. Biddulph1, T.L. Setter2, J.A. Plummer1 and D.J. Mares3; 1Plant Biology; FNAS, University of Western Australia; 2Department of Agriculture, 3School of Agriculture and Wine, University of Adelaide 11. Waterlogging induces high concentration of Mn and Al in wheat genotypes in acidic soils, H. Khabaz-Saberi, T. Setter, I. Waters and G. McDonald, Department of Agriculture 12. Agronomic responses of new wheat varieties in the Northern Agricultural Region, Christine M. Zaicou-Kunesch and Wal Anderson, Department of Agriculture 13. Agronomic responses of new wheat varieties in the Central Agricultural Region of WA, Darshan Sharma, Steve Penny and Wal Anderson, Department of Agriculture 14. EGA Eagle Rock tolerance to metribuzin and its mixtures, Harmohinder Dhammu, David Nicholson and Chris Roberts, Department of Agriculture 15. Herbicide tolerance of new bread wheats, Harmohinder Dhammu1 and David Nicholson2, Department of Agriculture NUTRITION 16. The impact of fertiliser placement, timing and rates on nitrogen-use efficiency, Stephen Loss, CSBP Ltd 17. Cereals deficient in potassium are most susceptible to some leaf diseases, Ross Brennan and Kith Jayasena, Department of Agriculture 18. Responses of cereal yields to potassium fertiliser type, placement and timing, Eddy Pol, CSBP Limited 19. Sulphate of Potash, the potash of choice at seeding, Simon Teakle, United Farmers Co-operative 20. Essential disease management for successful barley production, K. Jayasena, R. Loughman, C. Beard, B. Paynter, K. Tanaka, G. Poulish and A. Smith, Department of Agriculture 21. Genotypic differences in potassium efficiency of wheat, Paul Damon and Zed Rengel, Faculty of Natural and Agricultural Sciences, University of Western Australia 22. Genotypic differences in potassium efficiency of barley, Paul Damon and Zed Rengel, Faculty of Natural and Agricultural Sciences, University of Western Australia 23. Investigating timing of nitrogen application in wheat, Darshan Sharma and Lionel Martin, Department of Agriculture, and Muresk Institute of Agriculture, Curtin University of Technology 24. Nutrient timing requirements for increased crop yields in the high rainfall cropping zone, Narelle Hill, Ron McTaggart, Dr Wal Anderson and Ray Tugwell, Department of Agriculture DISEASES 25. Integrate strategies to manage stripe rust risk, Geoff Thomas, Robert Loughman, Ciara Beard, Kith Jayasena and Manisha Shankar, Department of Agriculture 26. Effect of primary inoculum level of stripe rust on variety response in wheat, Manisha Shankar, John Majewski and Robert Loughman, Department of Agriculture 27. Disease resistance update for wheat varieties in WA, M. Shankar, J.M. Majewski, D. Foster, H. Golzar, J. Piotrowski and R. Loughman, Department of Agriculture 28. Big droplets for wheat fungicides, Rob Grima, Agronomist, Elders 29. On farm research to investigate fungicide applications to minimise leaf disease impacts in wheat, Jeff Russell and Angie Roe, Department of Agriculture, and Farm Focus Consultants PESTS 30. Rotations for nematode management, Vivien A. Vanstone, Sean J. Kelly, Helen F. Hunter and Mena C. Gilchrist, Department of Agriculture 31. Investigation into the adaqyacy of sealed farm silos in Western Australia to control phosphine-resistant Rhyzopertha dominica, C.R. Newman, Department of Agriculture 32.Insect contamination of cereal grain at harvest, Svetlana Micic and Phil Michael, Department of Agriculture 33. Phosure – Extending the life of phosphine, Gabrielle Coupland and Ern Kostas, Co-operative Bulk Handling SOIL 34. Optimum combinations of ripping depth and tine spacing for increasing wheat yield, Mohammed Hamza and Wal Anderson, Department of Agriculture 35. Hardpan penetration ability of wheat roots, Tina Botwright Acuña and Len Wade, School of Plant Biology, University of Western Australia MARKETS 36. Latin America: An emerging agricultural powerhouse, Ingrid Richardson, Food and Agribusiness Research, Rabobank; Sydne

Crop Updates 1999 - Cereals

This article covers sixty papers FOREWORD ACKNOWLEDGMENTS PLENARY PAPERS 1. Western Australia’s climate: trends and opportunities, Len W. Broadbridge, Director, Bureau of Meterorology 2. Managing seasonal variations in agriculture, Dr Doug Abrecht, Director, Dryland Research Institute, Merredin CROP ESTABLISHMENT 3. Soil management to prevent waterlogging on duplex soils in the Great Southern, D. Bakker, Greg Hamilton, Cliff Spann and Doug Rowe, Agriculture Western Australia 4. The influence of no-till and press wheels on crop production for heavy soils, Peter Fisher, Jennifer Bignell, Matthew Braimbridge, Greg Hamilton, Agriculture Western Australia NUTRITION 5. Fertiliser nitrogen, applied late, needs rain to increase grain nitrogen and protein levels in wheat, Bill Bowden1, Ross Brennan1, Reg Lunt1 and Senthold Asseng2 1 Agriculture Western Australia, 2 CSIRO 6. Canola upsets the nutrition of the next cereal crop? Bill Bowden1, Garren Knell1, Cherie Rowles 1, Simon Bedbrook\u27, Chris Gazey 1,Mike Bolland1, Ross Brennan 1, Lyn Abbott2, Zed Rengel2 and Wayne Pluske3, 1 Agriculture Western Australia, 2 UWA Soil Science, 3 CSBP 7. Comparisons between high analysis nitrogen sources, Erin Cahill, CSBP 8. Urea additives for reduced drilled urea toxicity for canola and wheat, Bill Crabtree, WANTFA 9. Fertiliser placement, Matthew Evans, CSBP 9. The profitability of variable rate nitrogen applications on wheat, Tim Nielsen, CSBP Technical Services DISEASE 10. Fungicide for wheat leaf disease: boon or bane? Jat Bhathal, Rob Loughman and D. Rasmussen, Plant Pathology, Agriculture Western Australia 11. Role of retained wheat stubbles in disease carryover in wheat/lupin rotations, Jat Bhathal and Rob Loughman, Plant Pathology, Agriculture Western Australia 12. Comparison of aerial and ground application of fungicide for lead disease control ion wheat, Jat Bhathal and Rob Loughman, Plant Pathology, Agriculture Western Australia 13. Bean yellow mosaic virus infection of alternative pasture legume species, Roger Jones, CRC for legumes in Mediterranean Agriculture and Agriculture Western Australia 14. Survey of cereal root nematodes in cropping soils in Western Australia, Sean Kelly1, Ian Riley2 and Robert Loughman1, 1 Agriculture Western Australia,2 University of Adelaide 15. Crop management options for root lesion nematode, Robert Loughman 1, Sharyn Taylor2, Vivien Vanstone 3, Ian Riley3 and Dominie Wright1, 1 Agriculture Western Australia, 2SARDI Plant Research Centre, Glen Osmond, South Australia 3 University of Adelaide, Glen Osmond, South Australia 16. Forecasting barley yellow dwarf risk in cereals, Debbie Thackray and Roger Jones, Agriculture Western Australia and CRC for Legumes in Mediterranean Agriculture 17. Managing barley yellow dwarf virus in cereal crops, Debbie Thackray, Roger Jones and Simon McKirdy, Agriculture Western Australia and CRC for Legumes in Mediterranean Agriculture 18. Broadacre diagnostic service, Dominie Wright, Agriculture Western Australia, AGWEST Plant Laboratories 19. Using twist fungus (Dilophospora alopecuri) to reduce the risk of annual ryegrass toxicity, Dr George Yan1 and Dr Ian Riley2, 1 Plant Research and Development Service, Agriculture Western Australia, 2 Applied and Molecular Ecology, Waite Campus, The University of Adelaide, South Australia NEW VARIETIES 20. New wheat and oat varieties for 1999, Robin Wilson, lain Barclay, Robyn Mclean, Dean Diepeveen, Robert Loughman, and Bill Lambe, Agriculture Western Australia 21. Performance in 1998 of recently released wheat varieties, Robin Wilson, lain Barclay, Robyn Mclean, Dean Diepeveen, Robert Loughman and Bill Lambe, Agriculture Western Australia WHEAT AGRONOMY 22. Increasing the noodle ‘strike rate’, Wal Anderson, Brenda Shackley and Mechelle Owen, Agriculture Western Australia, Quality Wheat CRC 23. Variety trials: wheat and barley, Peter Burgess, Lamond Burgess & Associates 24. South coast wheat variety farmer survey, Ben Curtis, Agriculture Western Australia 25. Residual effects of deep ripping, gypsum and nutrients on grain yields and soil properties, Mohammed A. Hamza and W.K. Anderson, Agriculture Western Australia 26. How to ensure durum wheat profitability! Jamie Henderson, Frank Boetel and Alfredo lmpiglia, Agriculture Western Australia 27. Agronomic evaluation of new wheat varieties for 1999 in the Northern Agricultural Region, Frances Hoyle, Agriculture Western Australia 28. The influence of on-farm management and variety of grain screening levels, Frances Hoyle, Agriculture Western Australia 29. Variety response of hard wheats to management, Darshan Sharma and Wal Anderson, Agriculture Western Australia BARLEY AND OATS 30. Studies into production of export oaten hay, Pierre Fievez, Pierre Fievez and Associates 31. Gairdner barley in the Central and Northern Regions, Blakely Paynter, Agriculture Western Australia 32. Improving milling oat quality, Glenn McDonald, Agriculture Western Australia 33. Gairdner barley in the Southern Region, Kevin Young, Agriculture Western Australia PASTURE 34. The herbicide tolerance of some annual pasture legumes, Andrew Blake, Agriculture Western Australia 35. Pasture systems for cropping rotations in the northern wheatbelt, Keith Devenish, Agriculture Western Australia 36. Perennial pastures reduce recharge and acidification, Perry Dolling, Agriculture Western Australia 37. It’s time to include Lucerne in the pasture-crop system, Roy Latta 1, Lisa-Jane Blacklow2 and Chris Matthews 1,1 Agriculture Western Australia, 2 University of Western Australia, 38. New alternative pasture legume for fine textured soils, Angelo Loi, Brad Nutt and Rochelle McRobb, National Australian Pasture Legumes Improvement Program (NAPLIP) and Centre for Legumes in Mediterranean Agriculture (CLIMA) 39. Increasing pasture productivity on acid wodjil soils, Brad Nutt, David Webb and Andrew McRobb, Centre for Legumes in Mediterranean Agriculture (CLIMA) 40. Annual legume pasture species now available for use in cropping systems. Clinton Revell, Agriculture Western Australia 41. Herbicide and cultural management of Cadiz serradella in ‘phase’ pastures, Clinton Revell, Agriculture Western Australia 42. Spring spraying for redlegged earth mite, James Ridsdill-Smith and Celia Pavri, CSIRO Entomology and CLIMA 43. Water use and water extraction by recently developed pasture legume species and cultivars, David Tennant1, Darryl McClements2, Ross Thompson 1 and Mike Ewing2, 1 Natural Resource Management Services, Soil Management, 2 Plant Research and Development, Pasture Sciences 44. Death knell to doublegees? Tim Woodburn· and Paul Yeoh, CSIRO Entomology/CRC Weed Management Systems, Floreat LIMING 45. Calculated lime requirements for rotations, James Fisher1, Art Diggle 1•2 and Bill Bowden 1•2, 1 Centre for Legumes in Mediterranean Agriculture 2 Agriculture Western Australia 46. The RH lime reactivity test and RH of typical WA limes, Mark Whitten and Andrew Rate, Soil Science and Plant Nutrition, University of Western Australia YIELD MAPPING 47. Benchmarking target yields for wheat, Senthold Asseng 1, Bill Bowden2 and Paul Carlile3, 1 CSIRO Plant Industry, 2 Agriculture Western Australia, 3 UWA 48. Getting the most information from farm scale trial, Ed Blanchard, Agricultural Engineering and Precision Farming Consultant, Merredin, WA 49. Measuring nutrient changes using yield maps, Ed Blanchard, Agricultural engineering and precision farming consultant; Precision Farming Demonstration Project Coordinator for the Kondinin Group, Merredin WA BREEDING 50. Crop improvement royalties – investing in the future, Bevan Buirchell and Dean Diepeveen, Agriculture Western Australia 51. Screening cereals for genotypic variation in phosphorus efficiency, Lorraine Osborne and Zed Rengel, Soil Science and Plant Nutrition, University of Western Australia ON FARM TESTING 52. Test as you grow pays dividends, John Blake, Tress Walmsley, Terry Piper, Wal Anderson, Dean Diepeveen, Cameron Weeks, Michael Dodd, Amanda Falconer, Caroline Peek, Glenn Adam, Agriculture Western Australia 53. How useful is on-farm testing, Camray Gethin 1, Richard Guinness2, Simon Bedbrook1, Dean Diepeveen4, 1 TopCrop Development Officer, Agriculture Western Australia, 2 Farmer, Kunjin TopCrop Group, Corrigin, 3 Agricultural Consultant, Farmanco, York, 4 CVT service, Crop Industries, Agriculture Western Australia, ECONOMICS 54. The impact of farm practices on sustainability costs of rotations, Pierre Fievez, Pierre Fievez and Associates 55. Right rotations for TopCrop, Daniel Fels, Agriculture Western Australia 56. Dollars of water use efficiency, Andrew Rintoul, FAST National, GRDC funded project, Planfarm 57. Farm business structures, Andrew Rintoul, FAST National, GRDC funded project, Planfarm CLIMATE 58. Broadscale weather aspects affecting Western Australia during 1998 and prospects for 1999, Mal Lamond, Lamond Weather Services 59. An updated look at aspects of rainfall trends and variability in the south-west of Western Australia, Roger Tapp, Climate and Consultancy Section, Bureau of Meteorology, Perth WA 60. Frost research in the eastern wheatbelt, Craig White, Research Officer, Agriculture Western Australia, Presented by D.G. Abrech