Agronomy and Crop Sciences Commons^™

A Decision Support Tool For Seed Mixture Calculations, B. P. Berg, G. Hutton

IGC Proceedings (1997-2023)

Grassland species are normally seeded in mixtures rather than monocultures. In theory, seeding rates for mixtures are simply a sum of the amount of pure live seed (PLS) of each seed lot in the mix, an amount sufficient to ensure establishment and survival of each species. Mixtures can be complex because of the number of species used (especially in conservation and reclamation programs) and variations in seed purity and seed size. Soil limitations and seeding equipment settings need to be considered and in Canada, a metric conversion may be required. All these conditions make by-hand calculations of mixtures containing more …

Wheat Variety-Specific Response To Seeding Rate Under Intensive Management Conditions In Western Kansas In 2021–2022, R. P. Lollato, N. Giordano, L. Ryan, L. M. Simão, J. A. Romero Soler, L. O. Pradella

Kansas Agricultural Experiment Station Research Reports

Wheat response to seeding rate is variable and depends on resource availability during the growing season (e.g., fertility, moisture, and temperature). Our objective was to evaluate winter wheat population and grain yield responses to seeding rate and its interaction with variety in a highly-managed production system where manageable stresses were limited. This study was established to evaluate the response of the wheat varieties Joe, WB-Grainfield, Langin, and LCS Revere to five seeding rates ranging from 200,000 to 1,000,000 seeds per acre. The site was managed by growers who consistently win state and national wheat yield contests near Leoti, KS. The …

Kansas Field Research 2023

Kansas Agricultural Experiment Station Research Reports

A summary of research conducted in 2021-2023 on field production and management practices for crops in Kansas. Published in 2023 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Service.https://www.ag.k-state.edu/

Kansas Field Research 2022

Kansas Agricultural Experiment Station Research Reports

A summary of research conducted in 2020-2022 on field production and management practices for crops in Kansas. Published in 2022 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Service.
https://www.ag.k-state.edu/

Wheat Grain Yield Response To Seed Cleaning And Seed Treatment As Affected By Seeding Rate During The 2020–2021 Growing Season In Kansas, R. P. Lollato, L. O. Pradella, L. Ryan, L. M. Simão, N. Giordano, J. R. Soler, L. A. Haag

Kansas Agricultural Experiment Station Research Reports

The objective of this project was to evaluate the winter wheat stand count and grain yield responses to seeding rate and its interaction with seed cleaning and seed treatment in Kansas during the 2020–2021 growing season. Experiments evaluating the response of the wheat variety SY Monument to three seeding rates (600,000, 900,000, and 1,200,000 seeds per acre), three seed cleaning intensities (none, air screen, and gravity table), and two seed treatments (none and insecticide + fungicide) were established in a split-split plot design conducted in a complete factorial experiment in ten Kansas locations. In-season measurements included stand count and grain …

Wheat Variety-Specific Response To Seeding Rate Under Intensive Management Conditions In Western Kansas In 2020–2021, R. P. Lollato, N. Giordano, L. Ryan, L. M. Simão, J. R. Soler, L. O. Pradella

Kansas Agricultural Experiment Station Research Reports

Wheat response to seeding rate is variable and depends on resource availability during the growing season (e.g., fertility, moisture, and temperature). Our objective was to evaluate winter wheat population and grain yield responses to seeding rate and its interaction with variety in a highly-managed production system where manageable stresses were limited. This study was established to evaluate the response of the wheat varieties Joe, WB-Grainfield, Langin, and LCS Revere to five seeding rates ranging from 200,000 to 1,000,000 seeds per acre. The site was managed by growers that consistently win state and national wheat yield contests near Leoti, KS. The …

Wheat Variety-Specific Response To Seeding Rate Under Intensive Management Conditions In Western Kansas In 2019–2020, R. P. Lollato, B. R. Jaenisch

Kansas Agricultural Experiment Station Research Reports

Wheat response to seeding rate is variable and depends on resource availability during the growing season (e.g., fertility, moisture, and temperature). Our objective was to evaluate winter wheat population and grain yield responses to seeding rate and its interaction with variety in a highly-managed production system where manageable stresses were limited. One experiment evaluating the response of the wheat varieties Joe, WB-Grainfield, Langin, and LCS Revere to seeding rates ranging from 200,000 to 1,000,000 seeds per acre was established in a field managed by growers that consistently win state and national wheat yield contests near Leoti, KS. The trials were …

Kansas Field Research 2021

Kansas Agricultural Experiment Station Research Reports

A summary of research conducted in 2019-2020 on field production and management practices for crops in Kansas. Published in 2021 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Service https://www.ag.k-state.edu/

Wheat Grain Yield Response To Seed Cleaning And Seed Treatment As Affected By Seeding Rate During The 2019–2020 Growing Season In Kansas, R. P. Lollato, B. R. Jaenisch, L. Haag

Kansas Agricultural Experiment Station Research Reports

The objective of this project was to evaluate winter wheat stand count and grain yield responses to seeding rate and its interaction with seed cleaning and seed treatment in Kansas during the 2019–2020 growing season. Experiments evaluating the response of the wheat variety ‘SY Monument’ to three seeding rates (600,000, 900,000, and 1,200,000 seeds per acre), three seed cleaning intensities (none, air screen, and gravity table), and two seed treatments (none, and insecticide + fungicide) were established in a split-split plot design conducted in a complete factorial experiment in ten Kansas locations. In-season measurements included stand count and grain yield. …

Wheat Variety Response To Seeding Rate In Kansas During The 2018–19 Growing Season, R. P. Lollato, L. Molssato, C. Rapolla, G. Zhang, A. Fritz

Kansas Agricultural Experiment Station Research Reports

Different wheat varieties might require different seeding densities to maximize yield. Thus, the main objective of this project was to better understand the response of different wheat varieties to different seeding rates. Three field experiments were conducted during the 2017-18 growing season evaluating six wheat varieties subjected to five different seeding rates (0.6, 0.95, 1.3, 1.65, and 2.0 million seeds per acre). Crop was managed from a 70 bu/a yield goal and pests were controlled using commercially available pesticides. We measured final stand and grain yield, and all statistical analyses were performed for relating emerged plants per acre to grain …

Seeding Rate For Dryland Wheat, A. Schlegel, J. Holman, L. Haag

Kansas Agricultural Experiment Station Research Reports

Four winter wheat varieties (PlainsGold Byrd, Limagrain T158, Syngenta TAM 111, and WestBred Winterhawk) were planted at five seeding rates (30, 45, 60, 75, and 90 lb/a) in the fall of 2014, 2015, 2016, and 2017 at Colby, Garden City, and Tribune, KS. The objective of the study is to identify appropriate seeding rates for dryland winter wheat in western Kansas. Averaged across varieties, a seeding rate of 60 lb/a seemed to be adequate at all locations in 2015. However, with higher yields in 2016, a higher seeding rate (75 lb/a) was beneficial. Although yields were less in 2017 than …

Insecticidal Seed And In-Furrow Treatment Recommendations For Soybean And Sunflower, Brady Hauswedell

Electronic Theses and Dissertations

Throughout the 2016 and 2017 growing season, field research experiments were replicated across South Dakota. Many times seed treatments are used prophylactic, which is neither good for the producers or the environment. Producers will be able to reduce production costs, if they only use a seed treatment when necessary. The purpose of the first experiment was to determine the effects of seed treatments in combination with planting date and seeding rate on soybean yield. To determine the effects, two years of field data from four eastern South Dakota locations were compared. Within each year and location we compared two planting …

Seeding Rate And Nitrogen Application Effects On Spring Oat And Triticale Forage, A. Obour, J. D. Holman, A. Schlegel

Kansas Agricultural Experiment Station Research Reports

Spring oat and triticale are important forage crops in dryland and limited irrigated crop production systems in western Kansas. Previous research in western Kansas showed that growing spring forages in place of fallow reduced soil erosion and increased fallow precipitation use efficiency compared to summer fallow, and increased profitability compared to fallow in years with average to above average rainfall. Despite the great potential of spring forages, information on seeding rate and nitrogen fertilizer recommendations are limited. These management practices can affect forage productivity and nutritive value.

Current N fertilizer recommendations for oat and triticale are based on a very …

Interaction Of Seeding And Nitrogen Rate On Grain Sorghum Yield In Southwest Kansas, A. J. Foster, A. Schlegel, J. D. Holman, I. A. Ciampitti, C. Thompson, D. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

This study compared drilled planted sorghum at four seeding rates to planted sorghum at three different nitrogen (N) fertility levels at two locations in southwest Kansas (Garden City and Tribune). At the Garden City location, no difference was observed in yield among the drilled seeded sorghum populations greater than 27,000 seeds/a compared to the standard planted sorghum (sorghum planted at 27,000 seeds/a with a planter at 30 in.-row spacing). At Tribune, there was no difference in yield between the drilled sorghum and the standard planted sorghum (sorghum planted at 40,000 seeds/a with a planter at 30 in.-row spacing) regardless of …

Interaction Of Seeding And Nitrogen Rate On Grain Sorghum Yield In Southwest Kansas, A. J. Foster, A. Schlegel, J. D. Holman, I. A. Ciampitti, C. Thompson, Dorivar Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

This study compared drilled planted sorghum at four seeding rates to planted sorghum at three different nitrogen (N) fertility levels at two locations in southwest Kansas (Garden City and Tribune). At the Garden City location, no difference was observed in yield among the drilled seeded sorghum populations greater than 27,000 seeds/a compared to the standard planted sorghum (sorghum planted at 27,000 seeds/a with a planter at 30 in.-row spacing). At Tribune, there was no difference in yield between the drilled sorghum and the standard planted sorghum (sorghum planted at 40,000 seeds/a with a planter at 30 in.-row spacing) regardless of …

Optimum Seeding Rate For Different Wheat Varieties In Kansas, R. Lollato, G. Cramer, A. K. Fritz, G. Zhang

Kansas Agricultural Experiment Station Research Reports

Seeding rate is an important management practice affecting wheat yield. Wheat varieties differ in their tillering capacity and therefore in their yield response to seeding rate. Our objectives were to evaluate the tillering and yield response of different modern wheat varieties to seeding rate. The study was conducted in Hutchinson and Manhattan, KS, during the 2015-16 growing season. Seven wheat varieties (Everest, KanMark, 1863, Joe, Tatanka, Larry, and Zenda) were sown at five different seeding rates (0.6, 0.95, 1.3, 1.65, and 2 million seeds per acre). Tiller number and grain yield were measured in the spring. Increasing plant population decreased …

Seeding Rate For Dryland Wheat, A. Schlegel, J. D. Holman, L. Haag

Kansas Agricultural Experiment Station Research Reports

Four winter wheat varieties (PlainsGold Byrd, Limagrain T158, Syngenta TAM 111, and WestBred Winterhawk) were planted at five seeding rates (30, 45, 60, 75, and 90 lb/a) in the fall of 2014 and 2015 at Colby, Garden City, and Tribune, KS. The objective of the study was to identify appropriate seeding rates for dryland winter wheat in western Kansas. Averaged across varieties, a seeding rate of 60 lb/a seemed to be adequate at all locations in 2015. However, with higher yields in 2016, a higher seeding rate (75 lb/a) was beneficial. The wheat variety T158 was the highest yielding (or …

Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Genotype by seeding rate interaction can play a critical role in understanding wheat (Triticum aestivumL.) yield potential. The objective of this study was to quantify wheat yield response to seeding rates by contrasting genotypes (high- vs. low-tillering). One study was planted at two locations: Ashland Bottoms (dryland and conventional tillage) and at Topeka (irrigated and no-tillage) field research stations (Kansas). The two winter wheat varieties were sown at four different seeding rates (40, 80, 120, and 160 lb/a). Measurements consisted of stand counts, canopy coverage (estimated via imagery collection), determination of early-season gaps in the final stand (missing …

Seeding Rate For Dryland Wheat, A. Schlegel, J. D. Holman, L. Haag

Kansas Agricultural Experiment Station Research Reports

Four winter wheat varieties (Plainsgold Byrd, Limagrain T158, Syngenta TAM 111, and WestBred Winterhawk) were planted at five seeding rates (30, 45, 60, 75, and 90 lb/a) in the fall of 2014 at Colby, Garden City, and Tribune, KS. The objective of the study is to identify appropriate seeding rates for dryland winter wheat in western Kansas. Averaged across varieties, a seeding rate of 60 lb/a seemed to be adequate at all locations in 2015. The wheat variety T158 was the highest yielding (or in the highest group) at all locations. Other varieties may have been affected by differential response …

Seeding Rates And Fertilizer Placement To Improve Strip-Till And No-Till Corn, D. W. Sweeney

Kansas Agricultural Experiment Station Research Reports

In 2013, late planting resulted in corn yields that were less than 110 bu/a. Yields were not increased with seeding rates above 26,000/a, but a small increase in yield was obtained with knife applications of fertilizer nitrogen (N) compared with dribble.

Crop Updates 2010 - Crop Specific, Hugh J. Beckie, Wallace Cowling, T. N. Khan, K. Adhikari, K. Siddique, J. Garlinge, L. Smith, S. Morgan, C. Boyd, Ian Pritchard, Chris Veitch, Alan Harris, Tony Leonforts, Murray Blyth, Shari Dougal, Kristy Hobson, Ben Curtis, Doug Sawkins, D. Stephens, Ciara Beard, Kith Jayasena, Kazue Tanaka, Anne Smith, Brenda Coutts, Roger Jones, Jean Galloway, Pip Payne, Tess Humphreys, William Macleod, Ravjit Khangura, M. Aberra, H. Mian, Geoff Thomas, Dusty Severtson, Peter Mangano, Monica Kehoe, Madeline A. Tucker, Neil Barker, Robert Loughman, Larisa Cato, Ken Quail, Mohammad Amjad, Mark Seymour, Justin Kudnig, Mark Thompson, Anton Mannes, Michael Uttley, Chris Fletcher, Andrew Etherton, Nick Joyce, Kate Light, Peter Hamblin, Michael Lamond, Alan Meldrum, Wayne Parker, Steve Penny Jr, Sarah Ellis, Brenda Shackley, Christine Zaicou, Shajahan Miyan, Darshan Sharma, Ben Curtis, Greg Shea, Bevan Buirchell, David Harris, Bob French

Crop Updates

This session covers twenty four papers from different authors:

PLENARY

1. Challenges facing western Canadian cropping over the next 10 years, Hugh J Beckie, Research Centre, Agriculture and Agri-Food Canada, Saskatoon,

Saskatchewan

CROP SPECIFIC

Breeding

2. The challenge of breeding canola hybrids – new opportunities for WA growers, Wallace Cowling, Research Director, Canola Breeders Western Australia Pty Ltd

3. Chickpea 2009 crop variety testing of germplasm developed by DAFWA/CLIMA/ICRISAT/COGGO alliance. Khan, TN1,3, Adhikari, K1,3, Siddique, K2, Garlinge, J1, Smith, L1, Morgan, S1 and Boyd, C1 1Department …

Crop Updates 2007 - Farming Systems, David Jeffries, A. Loi, B. J. Nutt, C. K. Revell, Yvette Oliver, Michael Robertson, Bill Bowden, Kit Leake, Ashley Bonser, Ian Maling, Bindi Isbister, Garren Knell, Alison Slade, David Stephens, Michael Meuleners, David Beard, Nicolyn Short, Rob Grima, Ingrid Richardson, Ruhi Ferdowsian, Geoff Bee, David Evans, Bob Gilkes, Senthold Asseng, Jim Dixon, Felicity Byrne, Mike Ewing, Dennis Van Gool, Louise Barton, Ralf Kiese, David Gatter, Klaus Butterbach-Bahl, Renee Buck, Christoph Hinz, Daniel Murphy, Cameron Weeks, Meredith Fairbanks, John Peirce, Brad Rayner, Sandy White, Paul Damon, Qifa Ma, Zed Rengel, Ed Barrett-Lennard, Meir Altman, Tracey M. Gianatti, Lindsay Bell, Ben Webb, Caroline Peek, Paul Sanford, Paul Blackwell, Glen Riethmuller, Darshan Sharma, Mike Collins, Frank D'Emden, David Hall, G. P. Manango, D. L. Steverson, Vanessa Stewart, Julie Roche, Peter Rutherford, Imma Farré, Ian Foster, Stephen Charles, Frances Hoyle, N. Milton, M. Osman, L. K. Abbott, W. R. Cookson, S. Darmawanto, Rob Sands, David Mccarthy, Paul Carmody, J. Russell, J. Eyres, G. Fosbery, A. Roe, Phil Nichols, Andrew Bathgate, Anne Wilkins

Crop Updates

This session covers forty papers from different authors:

1. Quality Assurance and industry stewardship, David Jeffries, Better Farm IQ Manager, Cooperative Bulk Handling

2. Sothis: Trifolium dasyurum (Eastern Star clover), A. Loi, B.J. Nutt and C.K. Revell, Department of Agriculture and Food

3. Poor performing patches of the paddock – to ameliorate or live with low yield? Yvette Oliver¹, Michael Robertson¹, Bill Bowden², Kit Leake³and Ashley Bonser³, CSIRO Sustainable Ecosystems¹, Department of Food and Agriculture², Kellerberrin Farmer³

4. What evidence is there that …

Crop Updates 2007 - Cereals, R. Loughman, R. Lance, I. Barclay, G. Crosbie, S. Harasymow, W. Lambe, C. Li, R. Mclean, C. Moore, K. Stefanova, A. Tarr, R. Wilson, Matu Peipi, Matt Whiting, Christine Zaicou, Shahajahan Miyan, Brenda Shackley, Len J. Wade, Lindsay W. Bell, Felicity Byrne (Nee Flugge), Mike A. Ewing, Blakely Paynter, Andrea Hills, Raj Malik, Kelly Winfield, Harmohinder Dhammu, Vince Lambert, Chris Roberts, Jeromy Lemon, Geoff Thomas, Ian Hartley, Andrew Taylor, Manisha Shankar, John Majewski, Vivien Vanstone, Brenda Coutts, Monica Kehoe, Roger Jones, Geoffrey Dwyer, Belinda Welsh, Cuiping Wang, Linda Price

Crop Updates

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 …

Crop Updates 2004 - Cereals, Wal Anderson, Vivian Vanstone, Robert Loughman, Vanessa Stewart, Darshan Sharma, Christine Zaicou-Kunesch, Brenda Shackley, Mohammad Amjad, Steve Penny Jr, Glen Riethmuller, Jeromy Lemon, Mario D'Antuono, Veronika Reck, Ben Curtis, Judith Devenish, Melaine Kupsch, Anne Smith, Blakely Paynter, Roslyn Jetter, Leanne Schulz, Jocelyn Ball, Tom Sweeny, Stephen Loss, Ashleigh Brooks, Justin Fuery, Geoff Anderson, Zed Rengel, Paul Damon, Eddy Pol, Narelle Hill, Ray Tugwell, Ron Mctaggart, Nathan Moyes, John Majewski, Manisha Shanker, James Piotrowski, Ciara Beard, Kithsiri Jayasena, Kazue Tanaka, Grey Poulish, Debbie Thackray, Rohan Prince, Roger Jones, Peter Nelson, Nigel Metz, Leisa Armstrong, Yee Leong (Alex) Yung, Moin Salam, David Tennant

Crop Updates

This session covers twenty eight papers from different authors:

PLENARY

1. Declining profitability in continuous cropping systems. Is more wheat the answer on Duplex soil? Dr Wal Anderson, Department of Agriculture

2. Disease implications of extending the wheat phase in low-medium rainfall areas, Dr Vivian Vanstone and Dr Robert Loughman, Department of Agriculture

3. Prolonged wheat phase on duplex soils – where do weeds set the boundary? Vanessa Stewart, Department of Agriculture

WHEAT AGRONOMY

4. Management of small grain screenings in wheat, Dr Wal Anderson and Dr Darshan Sharma, Department of Agriculture

5. Agronomic responses of new wheat varieties, Christine …

Crop Updates - 2003 Weeds, Bill Roy, Peter Newman, J. R. Peirce, B. J. Rayner, Kathryn J. Steadman, Gavin P. Bignell, Amanda J. Ellery, Sandy Nedelkos, Ross Chapman, Michelle J. Owen, Simone Dudley, Robert Gallagher, Pippa J. Michael, Julie A. Plummer, Peter Newman, Glenn Adam, Catherine Borger, Abul Hashem, Nerys Wilkins, Sally Peltzer, Alex Douglas, Fran Hoyle, Paul Matson, Michael Walsh, Darren Chitty, David Ferris, Paul Neve, Art Diggle, Patrick Smith, Stephen Powles, David Archer, James Eklund, Frank Forcella, Alister Draper, Rick Llewellyn, Aik Cheam, Siew Lee, David Nicholson, Mike Clarke, Debbie Allen, Harmohinder S. Dhammu, Terry Piper, L. E. Young

Crop Updates

This session covers Thirty four papers from different authors

INTRODUCTION

INTEGRATED WEED MANAGEMENT

IWM system studies/demonstration sites

1. Six years of IWM investigation – what does it tell us? Bill Roy, Agricultural Consulting and Research Services Pty Ltd

2. Long term herbicide resistance site, the final chapter, Peter Newman and Glen Adam, Department of Agriculture

3. Management of skeleton weed (chondrilla juncea) in a cropping rotation in Western Australia, J. R. Peirce and B. J. Rayner, Department of Agriculture

WEED BIOLOGY AND COMPETITION

1. Annual ryegrass seedbanks: The good, the bad and the ugly, Kathryn J. Steadman¹, Amanda …

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Crop Updates 2002 - Cereals, Peter Burgess, Gary Fawell, Dean Diepeveen, Tim Setter, Jeff Russell, Tony Seymour, Robin Wilson, Iain Barclay, Robyn Mclean, Robert Loughman, Jenny Garlinge, Bill Lambe, Neil Venn, Peter Clarke, Mohammad Amjad, Wal Anderson, Raffael Del Cima, James Bee, Darshen Sharma, Sheena Lyon, Melaine Kupsch, Pam Burges, Veronika Reck, Brenda Shackley, Ray Tugwell, Bindi Webb, Steve Penny Jr, James Fisher, Bill Bowden, Craig Scanlan, Senthold Asseng, Michael Robertson, M. A. Hamza, G. Mcconnell, W. K. Anderson, Md Shahajahan Miyan, Darshan Sharma, Daya Patabendige, Patrick Gethin, Stephen Loss, Tim O'Dea, Ryan Guthrie, Lisa Leaver, Tyrone Henning, Lionel Martin, Narelle Hill, Simon Wallwork, Laurence Carslake, Darren Hughes, Glen Mcdonald, Nichole Burges, Dominie Wright, Jenny Hawkes, Roger Jones, Kith Jayasena, Kazue Tanaka, Vanessa Johnson, Robert Loughman, Josh Jury, Sean Kelly, Shashi Sharma, Robert Park, Phil Michael, Debbie Thackray, Christopher Newman, Garren Knell, Kevin Povey, David Stephens

Crop Updates

This session covers thirty one papers from different authors:

VARIETIES AND BREEDING

1. Agronomic evaluation of wheat and barley in the central wheatbelt of Western Australia, Peter Burgess¹and Gary Fawell², ¹Agritech and ²Farmanco Management

2. Evaluating stress tolerance to terminal drought by Western Australian wheats, Dean Diepeveen and Dr Tim Setter, Department of Agriculture

3. Broadscale wheat variety comparisons featuring Wyalkatchem, Jeff Russell, Department of Agriculture

4. Australian crop accreditation system variety selector, Tony Seymour, Australian Crop Accreditation System

5. Future wheat varieties, Robin Wilson, Iain Barclay,Robyn McLean, Robert Loughman, …

Crop Updates 1999 - Oilseeds, Paul Carmody, Rick Madin, David Bowran, Martin Barbetti, Ravjit Khangura, Graham Walton, Phil Parker, Francoise Berlandier, Linnet Cartwright, Ping Si, Nick Galwey, David Turner, Wayne Pluske, Roger Jones, Brenda Coutts, Bill Bowden, Isabel Arevalo-Vigne, Jeff Russell, Syed H. Zaheer, Andrew Simon, Art Diggle, Dave Eksteen, Arjen Ryder, Bill Crabtree, Serena Wyatt, Jim Baily

Crop Updates

This article contains eighteen papers

1. INTRODUCTION, Paul Carmody, Agriculture Western Australia

PLENARY SESSION

1. Transgenic canola in Western Australia: Outlook and challenges, Phil Salisbury, University of Melbourne

2. Farming system issues for herbicide tolerant canola, Rick Madin, Rick Madin and Associates, David Bowran, Agriculture Western Australia

3. Beating blackleg in 1999, Martin Barbetti, Ravjit Khangura, Paul Carmody, Graham Walton, Agriculture Western Australia

4. The Mustard Industry in Australia – Opportunities for a new oilseed, Phil Parker, NSW Agriculture

5. Management of blackleg with fungicides, Ravjit Khangura and Martin Barbetti, Agriculture Western Australia

6. Effect of aphid feeding …

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Drill Spacing And Rate Of Seeding, I Thomas, H G. Carris

Journal of the Department of Agriculture, Western Australia, Series 3

During the war, when superphosphate was in exceptionally short supply,a wheatbelt farmer experimented with a method of sowing a crop in which he had blocked each alternate drill run and in effect halved the rates of seed and super used on each acre. He expressed himself satisfied with the results and has since continued to plant the major portion of his crop in this manner.