The information contained in this publication is based on knowledge and understanding at the time of writing (June 2017) and may not be accurate, current or complete. The State of New South Wales (including the NSW Department of Industry), the author and the publisher take no responsibility, and will accept no liability, for the accuracy, currency, reliability or correctness of any information included in the document (including material provided by third parties). Readers should make their own inquiries and rely on their own advice when making decisions related to material contained in this publication. The product trade names in this publication are supplied on the understanding that no preference between equivalent products is intended and that the inclusion of a product name does not imply endorsement by the department over any equivalent product from another manufacturer.
| Researcher(s) |
Jason Condon (Charles Sturt University) Mark Conyers (NSW DPI) Richard Greene (Australian National University) Clive Kirkby (CSIRO) Brian Murphy (NSW Office of Environment) Beverley Orchard (CSIRO) Susan Orgill (NSW DPI) |
|---|---|
| Year(s) | 2016 |
| Contributor | Department of Primary Industries NSW |
| Trial location(s) |
Monaro, NSW
|
| Further information | View external link |
The purpose of this laboratory-based incubation experiment was to determine if an upper limit to Organic Carbon accumulation in soil was approached with increasing C input in basalt- and granite-derived soils.
• Organic carbon accumulation in soil did not approach an upper limit.
• Increases in organic carbon accumulation were due to accumulated microbial detritus (i.e. dead microorganisms and microbial products).
• Soil with the lowest organic carbon concentration at the start of the experiment accumulated the greatest mass of stable organic carbon.
• Nutrients applied based on humus nutrient ratios promoted organic carbon stabilisation in soil.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | DPI NSW |
| Trial funding source | Australian Government |
| Related program |
National Soil Carbon Program |
| Acknowledgments |
This research was supported by joint investment by the Australian Government Department of Agriculture and Water Resources (National Soil Carbon Program) and NSW Department of Primary Industries. Claudia Keitel and Janani Vimalathithen (University of Sydney) are acknowledged for the stable isotope analysis and Albert Oates (NSW DPI) for the particle size analysis. The cooperation of the land holders in the Monaro regions whose properties were sampled is also acknowledged. This paper was part of a PhD thesis through Charles Sturt University and is published in the journal: Geoderma 285:151–163. |
| Other trial partners | Not specified |
| Crop type | Other: Not specified |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Unknown |
| Sow date | Not applicable |
|---|---|
| Harvest date | Not applicable |
| Plot size | Not specified |
| Plot replication | Not specified |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2017, available at |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
