Vadakattu V.S.R. Gupta
Principal Research Scientist
Dr. Gupta Vadakattu investigates on aspects of genetic diversity, functional capability and resilience of soil biota in agricultural soils and functional microbial diversity of aquifer systems, specifically:
• Genetic, functional and environmental regulators of biological disease suppression in soils
• Phenotypic and functional diversity of microbiota in the rhizosphere and aquifer systems
• Microbial and edaphic factors regulating free-living nitrogen fixation in annual and perennial crops
• Turnover to carbon, nutrients and biological health of soils
Dr Gupta Vadakattu joined CSIRO Plant Industry in Canberra in 1989 following his PhD and postdoctoral studies at University of Saskatchewan in Canada. In Adelaide, he worked with the CRC for Soil and Land Management (1993-98) on microbial-protozoan interactions and their effects on microbial diversity and biological functions.
His research was the first to elucidate the exposure pathways for Bt-proteins with soil biota and contributed scientific evidence to the debate on benefits and risks from GM plants in Australian agricultural systems. Dr Vadakattu’s research showed the significance of managing biological functions in the low-fertility Mallee soils for sustainable production and environmental health.
He holds full Academic status as Assoc Professor in the Faculty of Health Sciences, Flinders University, Adelaide.
Dr Vadakattu has developed scoping documents identifying soil biology research priorities for Grains Research Development Corporation and Meat and Livestock Australia and delivered over 100 talks to industry audience.
- Microbial ecology
- N fixation
- Diazotroph diversity
- N cycling
Current N-related Projects:
- N cycling in cereal cropping systems
- Diazotrophic N fixation
Roper, M.M. and Gupta, V.V.S.R. (2016) Enhancing Non-symbiotic N2 fixation in Agriculture. The Open Agriculture Journal. 10: 7-27
McBeath, T.M., Gupta, V.V.S.R., Llewellyn, R., Davoren, B. and Whitbread, A. (2015) Break Crop Effects on Wheat Production across Soils and Seasons in a Semi-Arid Environment. Crop and Pasture Science. 66: 566-579
Whitbread, A.M., Davoren, C.W., Gupta, V.V.S.R., Llewellyn, R.S., Roget, D. (2015) Long-term cropping system studies support intensive and responsive cropping systems in the low-rainfall Australian Mallee. Crop and Pasture Science. 66: 553-565
Gupta, V.V.S.R., Kroker, S.K., Hicks, M., Davoren, C.W., Descheemaeker, K. and Llewellyn, R.S. (2014) Nitrogen cycling in summer active perennial grass systems in South Australia: Non-symbiotic nitrogen fixation. Crop and Pasture Science 65:1044-1056
Gupta, V.V.S.R., Penton, C.R., Kroker, S., Hicks, S., Bell, M., Neate, S.M., Murphy, D., Smith, C. and Tiedje, J.M. (2014). Diversity of nifH-harbouring bacteria and non-symbiotic N2 fixation in Australian cropping soils. In: The 17th Australian Nitrogen Fixation proceedings,
Gupta V.V.S.R., Unkovich, M. and Kaiser, B. N. (eds.), Australian Society for Nitrogen Fixation, Adelaide, pp. 40-41. http://agwine.adelaide.edu.au/research/farming/legumes-nitrogen/17th-australian-nitrogen-fixation-conference-2014.pdf
Angus, J.F., Gupta, V.V.S.R., Pitson, G.D. and Good, A.J. (2014) Effects of banded ammonia and urea fertilizer on soil properties and the growth and yield of wheat. Crop and Pasture Science 65: 337-352
Wakelin, S.A., Gupta, V.V.S.R. and Forrester, S.T. (2010). Regional and local factors affecting diversity, abundance and activity of free-living, N2-fixing bacteria in Australian agricultural soils. Pedobiologia. 53: 391-399
Gupta, V.V.S.R. and Roper, M.M. (2010). Protection of free-living nitrogen fixing bacteria within the soil matrix. Soil and Tillage Research. 109: 50-54
Drew, E., Gupta, V.V.S.R. and Roget, D.K. (2007) Herbicide use, productivity and nitrogen fixation in field pea. Australian Journal of Agricultural Research. 58:1204-1214
Gupta, V.V.S.R., Roper, M.M. and Roget, D.K. (2006) Potential for Non-Symbiotic N2-Fixation in different agroecological zones of southern Australia. Australian Journal of Soil Research. 44:343-354