
Overview
Background
Professor Bhagirath Chauhan joined the Queensland Alliance for Agriculture and Food Innovation (QAAFI) at The University of Queensland in 2014. He now has a joint appointment with QAAFI and SAFS at UQ. He leads research on weed biology and weed management in different crops, including wheat, maize, sorghum, mungbean, soybean, chickpea, rice, and cotton. He has studied the seed ecology of >100 weed species and he has a vast experience in developing integrated weed management options based on agronomic approaches (row spacing, seeding rates, weed-competitive cultivars, etc.). Prof Chauhan has more than 20 years of research experience in conducting trials on the improved agronomy of new production systems and integrated weed management options in Australia and >10 Asian countries. Before joining UQ, Prof Chauhan worked at the International Rice Research Institute (IRRI) in the Philippines for seven years. He has a strong collaboration in several countries, including USA, Sri Lanka, India, Nepal, Iran, Pakistan, Nigeria and China. His research interests include weed ecology and biology, herbicide use, management of herbicide-resistant weeds, non-chemical weed management options, integrated weed management systems using agronomic and varietal components, nanoherbicides, tillage systems, and conservation agriculture systems. He is a Speciality Chief Editor with Frontiers in Agronomy and an Associate Editor of Weed Science (Weed Science Society of America). He has published over 350 articles in peer reviewed journals and several books and book chapters. He is an Honorary Member of Weed Science Society of America (WSSA) and a life member of International Weed Science Society (IWSS), Asia Pacific Weed Science Society (APWSS), and Indian Society of Weed Science (ISWS).
Availability
- Professor Bhagirath Chauhan is:
- Available for supervision
Fields of research
Qualifications
- Doctor of Philosophy, University of Adelaide
Research interests
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Agronomy
Planting density, row spacing, suitable cultivar, optimise N
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Weed biology
Seed biology, plant biology, phenology, seed bank dynamics
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Non-chemical weed control
Tillage, cultural approaches (e.g., competitive crops)
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Pesticide resistance, emphasise on herbicides
Confirm resistance, resistance mechanism (molecular approach), alternate herbicide/pesticide options
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Integrated Pest Management
Integration of chemical and non-chemical tools
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Organic agriculture
Develop herbicide-free weed management programs
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Nutrition profile
In collaboration, evaluate nutrition profile of useful plants (seed and leaf)
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Genetic diversity in weeds
Works
Search Professor Bhagirath Chauhan’s works on UQ eSpace
2011
Journal Article
Ecological studies on Echinochloa crus-galli and the implications for weed management in direct-seeded rice
Chauhan, B. S. and Johnson, D. E. (2011). Ecological studies on Echinochloa crus-galli and the implications for weed management in direct-seeded rice. Crop Protection, 30 (11), 1385-1391. doi: 10.1016/j.cropro.2011.07.013
2011
Journal Article
Effects of planting pattern and cultivar on weed and crop growth in aerobic rice system
Mahajan, Gulshan and Chauhan, Bhagirath S. (2011). Effects of planting pattern and cultivar on weed and crop growth in aerobic rice system. Weed Technology, 25 (4), 521-525. doi: 10.1614/WT-D-11-00025.1
2011
Journal Article
Seed germination ecology of itchgrass (Rottboellia cochinchinensis)
Bolfrey-Arku, Grace E-K., Chauhan, Bhagirath Singh and Johnson, David E. (2011). Seed germination ecology of itchgrass (Rottboellia cochinchinensis). Weed Science, 59 (2), 182-187. doi: 10.1614/WS-D-10-00095.1
2011
Journal Article
Optimal nitrogen fertilization timing and rate in dry-seeded rice in northwest India
Mahajan, G., Chauhan, B. S. and Gill, M. S. (2011). Optimal nitrogen fertilization timing and rate in dry-seeded rice in northwest India. Agronomy Journal, 103 (6), 1676-1682. doi: 10.2134/agronj2011.0184
2010
Journal Article
Effect of nitrogen application timings and varieties on growth and yield of wheat grown on raised beds
Bhardwaj, Vikas, Yadav, Vijay and Chauhan, Bhagirath S. (2010). Effect of nitrogen application timings and varieties on growth and yield of wheat grown on raised beds. Archives of Agronomy and Soil Science, 56 (2), 211-222. doi: 10.1080/03650340903092218
2010
Book Chapter
Weed management in aerobic rice in northwestern Indo-Gangetic plains
Mahajan, G., Chauhan, B. S. and Johnson, D. E. (2010). Weed management in aerobic rice in northwestern Indo-Gangetic plains. Water and Agricultural Sustainability Strategies. (pp. 297-312) CRC Press. doi: 10.1080/15427520902970458
2010
Journal Article
The role of seed ecology in improving weed management strategies in the tropics
Chauhan, Bhagirath S. and Johnson, David E. (2010). The role of seed ecology in improving weed management strategies in the tropics. Advances in Agronomy, 105 (1), 221-262. doi: 10.1016/S0065-2113(10)05006-6
2010
Journal Article
Growth and reproduction of junglerice (Echinochloa colona) in response to water stress
Chauhan, Bhagirath S. and Johnson, David E. (2010). Growth and reproduction of junglerice (Echinochloa colona) in response to water stress. Weed Science, 58 (2), 132-135. doi: 10.1614/WS-D-09-00016.1
2010
Conference Publication
Relative importance of shoot and root competition in dry-seeded rice growing with junglerice (Echinochloa colona) and ludwigia (Ludwigia hyssopifolia)
Chauhan, Bhagirath S. and Johnson, David E. (2010). Relative importance of shoot and root competition in dry-seeded rice growing with junglerice (Echinochloa colona) and ludwigia (Ludwigia hyssopifolia). Lawrence, KS, United States: Weed Science Society of America. doi: 10.1614/WS-D-09-00068.1
2010
Journal Article
Implications of narrow crop row spacing and delayed Echinochloa colona and Echinochloa crus-galli emergence for weed growth and crop yield loss in aerobic rice
Chauhan, Bhagirath S. and Johnson, David E. (2010). Implications of narrow crop row spacing and delayed Echinochloa colona and Echinochloa crus-galli emergence for weed growth and crop yield loss in aerobic rice. Field Crops Research, 117 (2-3), 177-182. doi: 10.1016/j.fcr.2010.02.014
2010
Journal Article
Weedy rice (Oryza sativa) I. Grain characteristics and growth response to competition of weedy rice variants from five Asian countries
Chauhan, Bhagirath S. and Johnson, David E. (2010). Weedy rice (Oryza sativa) I. Grain characteristics and growth response to competition of weedy rice variants from five Asian countries. Weed Science, 58 (4), 374-380. doi: 10.1614/WS-D-09-00071.1
2010
Journal Article
Post-dispersal predation of weed seeds in rice fields
Chauhan, B. S., Migo, T., Westerman, P. R. and Johnson, D. E. (2010). Post-dispersal predation of weed seeds in rice fields. Weed Research, 50 (6), 553-560. doi: 10.1111/j.1365-3180.2010.00807.x
2010
Conference Publication
Responses of rice flatsedge (Cyperus iria) and barnyardgrass (Echinochloa crus-galli) to rice interference
Chauhan, Bhagirath S. and Johnson, David E. (2010). Responses of rice flatsedge (Cyperus iria) and barnyardgrass (Echinochloa crus-galli) to rice interference. Lawrence, KS, United States: Weed Science Society of America. doi: 10.1614/WS-D-09-00050.1
2009
Journal Article
Weed management in aerobic rice in northwestern indo-gangetic plains
Mahajan, G., Chauhan, B. S. and Johnson, D. E. (2009). Weed management in aerobic rice in northwestern indo-gangetic plains. Journal of Crop Improvement, 23 (4), 366-382. doi: 10.1080/15427520902970458
2009
Journal Article
Yield and yield-attributing traits of rice (Oryza sativa L.) under lowland drought and suitability of early vigor as a selection criterion
Kumar, Arvind, Verulkar, Satish, Dixit, Shalabh, Chauhan, Bhagirath, Bernier, Jerome, Venuprasad, Ramaiah, Zhao, Dule and Shrivastava, M. N. (2009). Yield and yield-attributing traits of rice (Oryza sativa L.) under lowland drought and suitability of early vigor as a selection criterion. Field Crops Research, 114 (1), 99-107. doi: 10.1016/j.fcr.2009.07.010
2009
Journal Article
Seed germination ecology of junglerice (Echinochloa colona): A major weed of rice
Chauhan, Bhagirath S. and Johnson, David E. (2009). Seed germination ecology of junglerice (Echinochloa colona): A major weed of rice. Weed Science, 57 (3), 235-240. doi: 10.1614/WS-08-141.1
2009
Journal Article
Influence of tillage systems on weed seedling emergence pattern in rainfed rice
Chauhan, B. S. and Johnson, D. E. (2009). Influence of tillage systems on weed seedling emergence pattern in rainfed rice. Soil and Tillage Research, 106 (1), 15-21. doi: 10.1016/j.still.2009.10.004
2009
Journal Article
Seed germination ecology of Portulaca oleracea L.: An important weed of rice and upland crops
Chauhan, B. S. and Johnson, D. E. (2009). Seed germination ecology of Portulaca oleracea L.: An important weed of rice and upland crops. Annals of Applied Biology, 155 (1), 61-69. doi: 10.1111/j.1744-7348.2009.00320.x
2009
Journal Article
Germination ecology of spiny (Amaranthus spinosus) and slender amaranth (A. viridis): troublesome weeds of direct-seeded rice
Chauhan, Bhagirath S. and Johnson, David E. (2009). Germination ecology of spiny (Amaranthus spinosus) and slender amaranth (A. viridis): troublesome weeds of direct-seeded rice. Weed Science, 57 (4), 379-385. doi: 10.1614/WS-08-179.1
2009
Journal Article
Ludwigia hyssopifolia emergence and growth as affected by light, burial depth and water management
Chauhan, B. S. and Johnson, D. E. (2009). Ludwigia hyssopifolia emergence and growth as affected by light, burial depth and water management. Crop Protection, 28 (10), 887-890. doi: 10.1016/j.cropro.2009.05.005
Funding
Current funding
Supervision
Availability
- Professor Bhagirath Chauhan is:
- Available for supervision
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Supervision history
Current supervision
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Doctor Philosophy
Biology and management of prickly lettuce
Principal Advisor
Other advisors: Associate Professor Shane Campbell
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Doctor Philosophy
Biology, Ecology and Management of Sorghum halepense in Sorghum Cropping Systems in Australia
Principal Advisor
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Doctor Philosophy
Management strategies for invasive leucaena on coal mine sites
Associate Advisor
Other advisors: Professor Victor Galea, Associate Professor Shane Campbell
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Doctor Philosophy
Reducing glyphosate exposure from high use practices
Associate Advisor
Other advisors: Dr Fisher Wang, Dr Sara Ghorbani Gorji, Professor Kevin Thomas, Associate Professor Sarit Kaserzon
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Doctor Philosophy
Improved Control Strategies for Leucaena (Leucaena leucocephala) on Rehabilitated Coal Mine Land
Associate Advisor
Other advisors: Professor Victor Galea, Associate Professor Shane Campbell
Completed supervision
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2021
Doctor Philosophy
Biology of Amaranthus retroflexus and Amaranthus viridis
Principal Advisor
Other advisors: Dr James Hereward
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2019
Master Philosophy
Alternative uses of Group H and L herbicides on glyphosate-resistant weeds
Principal Advisor
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2023
Doctor Philosophy
Cover cropping in drylands for improved agronomic and environmental outcomes
Associate Advisor
Other advisors: Professor Scott Chapman, Dr Alwyn Williams
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2019
Doctor Philosophy
Eco-biology and management of weeds in glyphosate-tolerant cotton (Gossypium hirsutum L.)
Associate Advisor
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2019
Doctor Philosophy
Invasion Biology, Interference and Management of Parthenium Weed (Parthenium hysterophorus L.) in Agro-ecosystems
Associate Advisor
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2016
Doctor Philosophy
Towards the optimisation of Coarse sprays to reduce drift and improve efficacy in Australian cropping systems
Associate Advisor
Other advisors: Dr Chris O'Donnell, Dr Andrew Hewitt
Media
Enquiries
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