Roger Armstrong

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