DUNN, Brian

Brian Dunn

Research interests

  • Remote sensing and near infra-red spectroscopy (NIR) of irrigated crops
  • Irrigation management of rice and winter cereals to maximise yield and water productivity
  • Agronomy and nitrogen management of rice
  • Precision agriculture in irrigated farming systems
  • Electromagnetic induction spatial mapping.


Brian Dunn is a research agronomist based at Yanco Agriculture Institute. He joined NSW Agriculture* in 1987 as a technical officer and has been involved in research covering a large range of issues associated with water productivity and agronomy of rice and other irrigated crops.

His research interests also extend to remote sensing, electromagnetic induction and near infra-red spectroscopy technologies. These technologies have and are being used in precision agriculture to determine and manage spatial variability within fields.

*NSW Department of Primary Industries was formed on July 1, 2004 through an amalgamation of NSW Agriculture, NSW Fisheries, State Forests of NSW and the NSW Department of Mineral Resources.


  • Ass. Dip. Agric. (Farming) - Riverina College of Advanced Education
  • B. App. Sc. (Agriculture) - Charles Sturt University

Current projects

  • Moving forward with NIR and remote sensing for rice
  • Rice variety agronomy and agronomic management

Recent publications

Dunn BW, Dehaan R, Schmidtke LM, Dunn TS and Meder R (2016). Using field-derived hyperspectral reflectance measurement to identify the essential wavelengths for predicting nitrogen uptake of rice at panicle initiation.  Journal of near infrared spectroscopy: Accepted

Dunn BW, Dunn TS and Orchard B (2016). Nitrogen rate and timing effects on growth and yield of drill sown rice. Crop and Pasture Science, 67: 1149-1157.

Dunn BW, Dunn TS and Beecher HG (2014). Nitrogen timing and rate effects on growth and grain yield of delayed permanent water rice in south-east Australia. Crop and Pasture Science, 65 (9): 878-887

Dunn BW and Dunn TS (2012). Influence of soil type on severity of straighthead in rice. Communications in Soil Science and Plant Analysis, 43: 1705-1719

Dunn BW and Gaydon DS (2011). Rice growth, yield and water productivity responses to irrigation scheduling prior to the delayed application of continuous flooding in south-east Australia. Agricultural Water Management, 98: 1799-1807

Dunn BW and Beecher HG (2007) Using Electro-Magnetic Induction technology to determine soil spatial variability and identify sampling sites for soil acidity assessment in irrigated rice fields. Australian Journal of Experimental Agriculture: 47: 208-214

Beecher HG, Dunn BW, Thompson JA, Humphreys E, Mathews SK and Timsina J (2006) Effect of raised beds, irrigation and nitrogen management on growth, yield and water use of rice in south-eastern Australia. Australian Journal of Experimental Agriculture, 46: 1363-1372

Dunn BW, Batten GD, Dunn TS, Subasinghe R and Williams RL (2006) Nitrogen fertiliser alleviates the disorder straighthead in Australian rice. Australian Journal of Experimental Agriculture, 46: 1077-1083

Russell CA, Dunn BW, Batten GD, Williams RL and Angus JF (2006) Soil tests to predict optimum fertilizer nitrogen rate for rice. Field Crops Research, 97: 286-301

Humphreys E, Lewin LG, Khan S, Beecher HG, Lacy JM, Thompson JA, Batten GD, Brown A, Russell CA, Christen EW and Dunn BW (2006) Integration of approaches to increasing water use efficiency in rice-based systems in southeast Australia.Field Crops Research: 97: 19-33

Fields of research

  • 070302 Agronomy
  • 070306 Crop and Pasture Nutrition
  • 070107 Farming Systems Research
  • 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation)

Australian and New Zealand Standard Research Classification (ANZSRC)

Keyword/phrase list of research interests

  • Remote sensing
  • Precision Agriculture
  • Near infra-red spectroscopy
  • Electromagnetic Induction surveying
  • Rice-based farming systems

Contact details

Email: brian.dunn@dpi.nsw.gov.au
Phone: (02) 6951 2621