Ashlea Doolette

Dr Ashlea Doolette

Lecturer

School of Agriculture, Food and Wine

Faculty of Sciences, Engineering and Technology

Eligible to supervise Masters and PhD - email supervisor to discuss availability.


Ashlea is a post doctoral researcher and lecturer in Soil Science in the School of Agriculture, Food and Wine. Her research and teaching interests are in soil chemistry and how nutrients are stored, transformed and cycled in soils.

Ashlea's research primarily focuses on soil phosphorus chemistry and she has a particular interest in:

•    The characterisation and quantification of different forms of organic phosphorus and their availability to plants.

•    The the influence of crop rotations and agronomic strategies to improve phosphorus availability in soil.

•    31P NMR analysis and the development of NMR techniques for the analysis of soils and plants.

Date Position Institution name
2011 - ongoing Postdoctoral Research Fellow The University of Adelaide

Date Institution name Country Title
2011 The Univeristy of Adelaide Austrlia PhD
2007 The University of Adelaide Australia BSc. (Hons)

Year Citation
2024 Pittroff, S. M., Olsson, S., Doolette, A., Greiner, R., Richardson, A. E., & Nicolaisen, M. H. (2024). Erratum to: A novel microcosm to identify inherently competitive microorganisms with the ability to mineralize phytate in solum (Soil Ecology Letters, (2021), 3, 4, (367-382), 10.1007/s42832-021-0089-z). Soil Ecology Letters, 6(4), 1 page.
DOI
2024 Ryan, J., Smernik, R., & Doolette, A. (2024). Assessing the magnitude of soil carbon enhancement under canopy in an arboretum environment. Urban Forestry and Urban Greening, 95, 128295.
DOI Scopus3
2023 Dowling, A., Roberts, P., Doolette, A., Zhou, Y., & Denton, M. D. (2023). Oilseed-legume intercropping is productive and profitable in low input scenarios. Agricultural Systems, 204, 103551.
DOI Scopus7 WoS7
2022 Zhang, X., Smernik, R., Doolette, A., Walters, S., & Mosley, L. M. (2022). Phosphorus speciation and release from different plant litters on a River Murray (Australia) floodplain. Plant and Soil, 141(1-2), 141-156.
DOI Scopus3 WoS4
2022 Zhang, X., Smernik, R., Doolette, A., Walters, S., & Mosley, L. M. (2022). Correction to: Phosphorus speciation and release from different plant litters on a River Murray (Australia) floodplain (Plant and Soil, (2021), 10.1007/s11104-021-05197-0). Plant and Soil, 472(1-2), 659.
DOI Scopus1
2022 Vogel, C., Doolette, A., & Huang, J. (2022). Combining diffusive gradients in thin-films (DGT) and P-31 NMR spectroscopy to determine phosphorus species in soil. AGRICULTURAL & ENVIRONMENTAL LETTERS, 7(1), 1-5.
DOI Scopus1
2021 Zhong, H., Zhou, J., Azmi, A., Arruda, A. J., Doolette, A. L., Smernik, R. J., & Lambers, H. (2021). Xylomelum occidentale (Proteaceae) accesses relatively mobile soil organic phosphorus without releasing carboxylates. Journal of Ecology, 109(1), 246-259.
DOI Scopus27 WoS25 Europe PMC5
2021 Dowling, A., Sadras, V., Roberts, P., Doolette, A., Zhou, Y., & Denton, M. D. (2021). Legume-oilseed intercropping in mechanised broadacre agriculture - a review. Field Crops Research, 260, 1-16.
DOI Scopus74 WoS67
2021 Zhang, Y., Finn, D., Bhattacharyya, R., Dennis, P. G., Doolette, A. L., Smernik, R. J., . . . Kopittke, P. M. (2021). Long-term changes in land use influence phosphorus concentrations, speciation, and cycling within subtropical soils. Geoderma, 393, 1-13.
DOI Scopus31 WoS27
2021 Pittroff, S. M., Olsson, S., Doolette, A., Greiner, R., Richardson, A. E., & Nicolaisen, M. H. (2021). A novel microcosm to identify inherently competitive microorganisms with the ability to mineralize phytate in solum. Soil Ecology Letters, 3(4), 367-382.
DOI Scopus5 WoS6
2020 Seneviratne, S. M., Doolette, A., & Marschner, P. (2020). Amendment type and Time of Addition Influence the Effect of Short-term Heating on Soil Respiration and Nutrient Availability. Journal of Soil Science and Plant Nutrition, 20(2), 431-438.
DOI
2020 McQuillan, M., Smernik, R. J., & Doolette, A. L. (2020). Partitioning of phosphorus between biochemical and storage compounds in leaves follows a consistent pattern across four Australian genera growing in native settings. PLANT AND SOIL, 454(1-2), 57-75.
DOI Scopus12 WoS12
2020 Erinle, K. O., Doolette, A., & Marschner, P. (2020). Changes in phosphorus pools in the detritusphere induced by removal of P or switch of residues with low and high C/P ratio. Biology and Fertility of Soils, 56(1), 1-10.
DOI Scopus16 WoS15 Europe PMC3
2019 van der Bom, F. J. T., McLaren, T. I., Doolette, A. L., Magid, J., Frossard, E., Oberson, A., & Jensen, L. S. (2019). Influence of long-term phosphorus fertilisation history on the availability and chemical nature of soil phosphorus. Geoderma, 355, 113909-1-113909-12.
DOI Scopus61 WoS54
2019 Ryan, M. H., Kaur, P., Nazeri, N. K., Clode, P. L., Keeble-Gagnère, G., Doolette, A. L., . . . Appels, R. (2019). Globular structures in roots accumulate phosphorus to extremely high concentrations following phosphorus addition. Plant Cell and Environment, 42(6), 1987-2002.
DOI Scopus16 WoS15 Europe PMC10
2019 Doolette, A., Armstrong, R., Tang, C., Guppy, C., Mason, S., & McNeill, A. (2019). Phosphorus uptake benefit for wheat following legume break crops in semi-arid Australian farming systems. Nutrient Cycling in Agroecosystems, 113(3), 247-266.
DOI Scopus13 WoS13
2019 Watson, F. T., Smernik, R. J., Doolette, A. L., & Mosley, L. M. (2019). Phosphorus speciation and dynamics in river sediments, floodplain soils and leaf litter from the Lower Murray River region. Marine and Freshwater Research, 70(11), 1522-1532.
DOI Scopus8 WoS8
2019 Seneviratne, M., Doolette, A., & Marschner, P. (2019). Impact of a short heating event followed by rewetting on soil respiration and nutrient availability is not only due to soil drying during heating. Biology and Fertility of Soils, 55(6), 553-564.
DOI Scopus6 WoS4 Europe PMC1
2019 Watson, F. T., Smernik, R. J., & Doolette, A. L. (2019). Thermal degradation of phytate produces all four possible inositol pentakisphosphates as determined by ion chromatography and 1H and 31P NMR spectroscopy. Phosphorus, Sulfur and Silicon and the Related Elements, 194(12), 1140-1148.
DOI Scopus8 WoS6
2019 Erinle, K. O., Doolette, A., & Marschner, P. (2019). P Pools in Barley Detritusphere Are Influenced by N and P Addition to the Soil. Journal of Soil Science and Plant Nutrition, 19(2), 463-468.
DOI Scopus4 WoS2
2018 Doolette, A., & Smernik, R. (2018). Facile decomposition of phytate in the solid-state: Kinetics and decomposition pathways. Phosphorus, Sulfur and Silicon and the Related Elements, 193(3), 192-199.
DOI Scopus3 WoS3
2018 Foyjunnessa., McNeill, A., Doolette, A., & Mason, S. (2018). Dual-labelling (¹⁵N and ³³P) provides insights into stoichiometry and release of nitrogen and phosphorus from in situ mature lupin and canola below-ground residues. Plant and Soil, 426(1-2), 77-93.
DOI Scopus8 WoS5
2018 Erinle, K. O., Li, J., Doolette, A., & Marschner, P. (2018). Soil phosphorus pools in the detritusphere of plant residues with different C/P ratio - influence of drying and rewetting. Biology and Fertility of Soils, 54(7), 841-852.
DOI Scopus24 WoS23 Europe PMC3
2017 Doolette, A., Smernik, R., & McLaren, T. (2017). The composition of organic phosphorus in soils of the Snowy Mountains region of south-eastern Australia. Soil Research, 55(1), 10-18.
DOI Scopus23 WoS22
2017 Vogel, C., Ramsteiner, M., Sekine, R., Doolette, A., & Adam, C. (2017). Characterization of phosphorus compounds in soils by deep ultraviolet (DUV) Raman microspectroscopy. Journal of Raman Spectroscopy, 48(6), 867-871.
DOI Scopus19 WoS17
2016 Foyjunnessa., McNeill, A., Doolette, A., Mason, S., & McLaughlin, M. (2016). Quantifying total phosphorus accumulation below-ground by canola and lupin plants using ³³P-labelling. Plant and Soil, 401(1-2), 39-50.
DOI Scopus5 WoS5
2016 Moata, M., Doolette, A., Smernik, R., McNeill, A., & Macdonald, L. (2016). Organic phosphorus speciation in Australian Red Chromosols: stoichiometric control. Soil Research, 54(1), 11-19.
DOI Scopus9 WoS8
2016 Doolette, A., & Smernik, R. (2016). Phosphorus speciation of dormant grapevine (Vitis vinifera L.) canes in the Barossa Valley, South Australia. Australian Journal of Grape and Wine Research, 22(3), 462-468.
DOI Scopus16 WoS15
2016 Foyjunnessa., McNeill, A., Doolette, A., Mason, S., & McLaughlin, M. (2016). Use of 33P to trace in situ the fate of canola below-ground phosphorus, including wheat uptake in two contrasting soils. Crop and Pasture Science, 67(7), 726-738.
DOI Scopus3 WoS3
2015 Jarosch, K., Doolette, A., Smernik, R., Tamburini, F., Frossard, E., & Bünemann, E. (2015). Characterisation of soil organic phosphorus in NaOH-EDTA extracts: a comparison of (31)P NMR spectroscopy and enzyme addition assays. Soil Biology and Biochemistry, 91, 298-309.
DOI Scopus86 WoS80 Europe PMC16
2015 McLaren, T., Smernik, R., McLaughlin, M., McBeath, T., Kirby, J., Simpson, R., . . . Richardson, A. (2015). Complex forms of soil organic phosphorus-a major component of soil phosphorus. Environmental Science and Technology, 49(22), 13238-13245.
DOI Scopus119 WoS113 Europe PMC35
2015 Moata, M., Smernik, R., Doolette, A., McNeill, A., & Macdonald, L. (2015). Improving sensitivity of solution ³¹P NMR analysis in Australian Xeralfs. Communications in Soil Science and Plant Analysis, 46(8), 1034-1043.
DOI Scopus3 WoS2
2015 Moata, M., Smernik, R., Doolette, A., McNeill, A., & Macdonald, L. (2015). Improving sensitivity of solution ³¹P NMR analysis in Australian Xeralfs. Communications in Soil Science and Plant Analysis, 46(8), 1034-1043.
DOI Scopus3 WoS2
2015 Annaheim, K., Doolette, A., Smernik, R., Mayer, J., Oberson, A., Frossard, E., & Bünemann, E. (2015). Long-term addition of organic fertilizers has little effect on soil organic phosphorus as characterized by ³¹P NMR spectroscopy and enzyme additions. Geoderma, 257-258, 67-77.
DOI Scopus102 WoS96
2015 Doolette, A., & Smernik, R. (2015). Quantitative analysis of <sup>31</sup>P NMR spectra of soil extracts-Dealing with overlap of broad and sharp signals. Magnetic Resonance in Chemistry, 53(9), 679-685.
DOI Scopus19 WoS17 Europe PMC4
2015 Smernik, R. J., Doolette, A. L., & Noack, S. J. (2015). Identification of RNA hydrolysis products in NaOH-EDTA extracts using 31P NMR spectroscopy. Communications in Soil Science and Plant Analysis, 46(21), 2746-2756.
DOI Scopus28 WoS25
2014 Foyjunnessa, F., McNeill, A., Doolette, A., Mason, S., & McLaughlin, M. (2014). In situ ³³P-labelling of canola and lupin to estimate total phosphorus accumulation in the root system. Plant and Soil, 382(1-2), 291-299.
DOI Scopus7 WoS6
2012 Milham, P., Dougherty, W., Morrison, J., Clark, R., Smernik, R., Burkitt, L., . . . Doolette, A. L. (2012). Soil chemistry: understanding phosphorus in the environment. Chemistry in Australia, 2012(Jul), 26-29.
2011 Doolette, A. L., Smernik, R. J., & Dougherty, W. J. (2011). A quantitative assessment of phosphorus forms in some Australian soils. Soil Research, 49(2), 152-165.
DOI Scopus60 WoS58
2011 Doolette, A., Smernik, R., & Dougherty, W. (2011). Overestimation of the importance of phytate in NaOH-EDTA soil extracts as assessed by (31)P NMR analyses. Organic Geochemistry, 42(8), 955-964.
DOI Scopus52 WoS50
2010 Doolette, A., Smernik, R., & Dougherty, W. (2010). Rapid decomposition of phytate applied to a calcareous soil demonstrated by a solution 31P NMR study. European Journal of Soil Science, 61(4), 563-575.
DOI Scopus88 WoS84 Europe PMC23
2009 Doolette, A., Smernik, R., & Dougherty, W. (2009). Spiking Improved Solution Phosphorus-31 Nuclear Magnetic Resonance Identification of Soil Phosphorus Compounds. Soil Science Society of America Journal, 73(3), 919-927.
DOI Scopus196 WoS190
2008 Buenemann, E., Smernik, R., Doolette, A., Marschner, P., Wakelin, S., & McNeill, A. (2008). Forms of phosphorus in bacteria and fungi isolated from two Australian soils. Soil Biology & Biochemistry, 40(7), 1908-1915.
DOI Scopus82 WoS75 Europe PMC30

Year Citation
2018 Erinle, K. O., Doolette, A., & Marschner, P. (2018). Influence of P removal or change of crop residue types on P availability and changes in P pools in detritusphere soil (Poster presentation). In Soil. Canberra.
2012 Doolette, A., McNeill, A., Armstrong, R., Marschner, P., Tang, C., & Guppy, C. (2012). Assessing break crop options for enhanced soil phosphorus availability.. In Proceedings of 16th Australian Agronomy Conference 2012 (pp. 4 pages). Armidale, NSW.
2010 Doolette, A., Smernik, R., & Dougherty, W. (2010). A quantitative assessment of phosphorus forms in Australian soils. In Soil Solutions for a Changing World Vol. 49 (pp. 17-20). DVD: C S I R O Publishing.

Date Role Research Topic Program Degree Type Student Load Student Name
2025 Principal Supervisor Impact of labile carbon and phosphorus addition on the gross nitrogen mineralisation and dynamics in a low-P alkaline soil Master of Philosophy Master Full Time Miss Maya Omonte Kramer
2024 Co-Supervisor Effect of organic and inorganic soil amendments on organic matter stabilisation, nutrient retention and wheat growth in calcareous or sandy soils Doctor of Philosophy Doctorate Full Time Mrs Aasma Parveen
2024 Co-Supervisor Effect of organic and inorganic soil amendments on organic matter stabilisation, nutrient retention and wheat growth in calcareous or sandy soils Doctor of Philosophy Doctorate Full Time Mrs Aasma Parveen
2022 Principal Supervisor Effect of intercropping and phosphorus application rate on phosphorus availability of intercropped sorghum (Sorghum bicolor L.) and greenleaf desmodium (Desmodium intortum L.) in phosphorus deficient acidic soils of southern Australia. Doctor of Philosophy Doctorate Full Time Mrs Mabasia Mamokete Lucy Ngatane
2022 Principal Supervisor Effect of intercropping and phosphorus application rate on phosphorus availability of intercropped sorghum (Sorghum bicolor L.) and greenleaf desmodium (Desmodium intortum L.) in phosphorus deficient acidic soils of southern Australia. Doctor of Philosophy Doctorate Full Time Mrs Mabasia Mamokete Lucy Ngatane

Date Role Research Topic Program Degree Type Student Load Student Name
2019 - 2023 Co-Supervisor Legume-oilseed intercropping in mechanised broadacre agriculture in a Mediterranean climate Doctor of Philosophy Doctorate Full Time Miss Alyce Hayes Dowling
2017 - 2020 Co-Supervisor The Effect of Single Heating on Soil Microbial Activity and Nutrient Cycling Doctor of Philosophy Doctorate Full Time Ms Mihiri Seneviratne
2017 - 2019 Co-Supervisor Effect of Crop Residue Quality on Phosphorus Pools in the Detritusphere and P Uptake by Wheat Doctor of Philosophy Doctorate Full Time Mr Kehinde Olajide Erinle
2016 - 2020 Co-Supervisor Accumulation and depletion of soil Phosphorus pools Doctor of Philosophy Doctorate Full Time Mrs Khuyen Thi Kim Hoang
2013 - 2016 Co-Supervisor Investigating the Role of Stoichiometry as an Influence on Soil Phosphorus Content and Forms Doctor of Philosophy Doctorate Full Time Ms Melinda Rosita Secentin Moata
2012 - 2016 Co-Supervisor Isotope Studies of Accumulation and Cycling of Phosphorus and Nitrogen Below-ground in Canola and Lupin Doctor of Philosophy Doctorate Full Time Mrs . Foyjunnessa

Date Role Board name Institution name Country
2016 - ongoing Board Member Agricultural Bureau of SA - -

Date Role Committee Institution Country
2015 - 2016 Treasurer Soil Science Australia - -
2009 - 2012 Secretary Soil Science Australia - -
2007 - ongoing Representative Soil Science Australia - -

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