Roger Armstrong

Roger Armstrong publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Roger Armstrong sits on this spectrum.

Roger Armstrong D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Roger Armstrong sits on this spectrum.

Best Publications

• Chemical characteristics of phosphorus in alkaline soils from southern Australia

  Isabelle. Bertrand;R. J. Holloway;Roger. Armstrong;M. J. McLaughlin

  254
  Citations

• Crop residue phosphorus: speciation and potential bio-availability

  Sarah R. Noack;Mike J. McLaughlin;Ronald J. Smernik;Therese M. McBeath

  210
  Citations

• Changes and availability of P fractions following 65 years of P application to a calcareous soil in a Mediterranean climate

  D. T. Vu;C. Tang;R. D. Armstrong

  207
  Citations

• Mobility and Lability of Phosphorus from Granular and Fluid Monoammonium Phosphate Differs in a Calcareous Soil

  E. Lombi;M. J. McLaughlin;C. Johnston;R. D. Armstrong

  159
  Citations

• Subsoil constraints to crop production on neutral and alkaline soils in south-eastern Australia: a review of current knowledge and management strategies

  D. Adcock;A. M. McNeill;G. K. McDonald;R. D. Armstrong

  143
  Citations

• Evaluating physicochemical constraints of Calcarosols on wheat yield in the Victorian southern Mallee

  J. G. Nuttall;R. D. Armstrong;D. J. Connor

  133
  Citations

• Nitrogen dynamics in grain crop and legume pasture systems under elevated atmospheric carbon dioxide concentration: A meta-analysis

  Shu K. Lam;Deli Chen;Rob Norton;Roger Armstrong

  128
  Citations

• Speciation and Distribution of Phosphorus in a Fertilized Soil

  E. Lombi;K. G. Scheckel;R. D. Armstrong;S. Forrester

  116
  Citations

• Phosphorus supply enhances the response of legumes to elevated CO2 (FACE) in a phosphorus-deficient vertisol

  Jian Jin;Jian Jin;Caixian Tang;Roger Armstrong;Peter Sale

  110
  Citations

• Effect of added nitrogen on plant litter decomposition depends on initial soil carbon and nitrogen stoichiometry

  Damien Finn;Kathryn Page;Kerrilyn Catton;Ekaterina Strounina

  110
  Citations

• Long-term effects of elevated CO2 on carbon and nitrogen functional capacity of microbial communities in three contrasting soils

  Clayton R. Butterly;Lori A. Phillips;Jennifer L. Wiltshire;Ashley E. Franks

  93
  Citations

• Carbon and nitrogen partitioning of wheat and field pea grown with two nitrogen levels under elevated CO2

  Clayton R. Butterly;Roger Armstrong;Deli Chen;Caixian Tang

  92
  Citations

• The effect of soil water status on fertiliser, topsoil and subsoil phosphorus utilisation by wheat

  T. M. McBeath;T. M. McBeath;M. J. McLaughlin;M. J. McLaughlin;J. K. Kirby;R. D. Armstrong

  92
  Citations

• Responsiveness of wheat (Triticum aestivum) to liquid and granular phosphorus fertilisers in southern Australian soils

  T. M. McBeath;R. D. Armstrong;E. Lombi;M. J. McLaughlin

  87
  Citations

• Mobility, solubility and lability of fluid and granular forms of P fertiliser in calcareous and non-calcareous soils under laboratory conditions

  E. Lombi;M. J. McLaughlin;M. J. McLaughlin;C. Johnston;R. D. Armstrong

  86
  Citations

• Impact of elevated CO2 on grain nutrient concentration varies with crops and soils - A long-term FACE study.

  Jian Jin;Roger Armstrong;Caixian Tang

  84
  Citations

• Tillage system affects phosphorus form and depth distribution in three contrasting Victorian soils

  D. T. Vu;C. Tang;R. D. Armstrong

  84
  Citations

• Interrelationships between edaphic factors potentially limiting cereal growth on alkaline soils in north-western Victoria.

  J. G. Nuttall;R. D. Armstrong;D. J. Connor;V. J. Matassa

  82
  Citations

• Phosphorus speciation in mature wheat and canola plants as affected by phosphorus supply

  Sarah R. Noack;Mike J. McLaughlin;Mike J. McLaughlin;Ronald J. Smernik;Therese M. McBeath

  78
  Citations

• Intercropping-Evaluating the Advantages to Broadacre Systems

  Uttam Khanal;Kerry J. Stott;Roger Armstrong;James G. Nuttall

  73
  Citations

• Predicting the response of wheat (Triticum aestivum L.) to liquid and granular phosphorus fertilisers in Australian soils

  T.M. McBeath;M.J. McLaughlin;M.J. McLaughlin;R.D. Armstrong;M. Bell

  67
  Citations

• Changes in P bioavailability induced by the application of liquid and powder sources of P, N and Zn fertilizers in alkaline soils

  Isabelle Bertrand;Isabelle Bertrand;Mike J. McLaughlin;Mike J. McLaughlin;Robert E. Holloway;Roger D. Armstrong

  65
  Citations

• Nutrient stoichiometry and labile carbon content of organic amendments control microbial biomass and carbon-use efficiency in a poorly structured sodic-subsoil

  Yunying Fang;Bhupinder Pal Singh;Damian Collins;Roger Armstrong

  61
  Citations