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Researcher(s) |
Annabelle McPherson (NSW DPI) Graeme Schwenke (NSW DPI) |
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Year(s) | 2016 |
Contributor | Department of Primary Industries NSW |
Trial location(s) |
Moree, NSW
|
Further information | View external link |
To compare conventional practice with two alternative pre-plant N fertiliser placements in relation to the irrigated furrow, to investigate the potential impact on soil mineral N concentrations, nitrous oxide (N2O) emissions, and cotton production.
The trial was harvested with a commercial six-row picker on 8 April 2016. All cotton from each plot was baled separately and then weighed, ginned and quality-tested at a commercial gin.
Randomised complete block design with three replications of three treatments. Each plot was eight rows (× 1 m) wide and 380 m long (paddock length).
Lead research organisation |
Department of Primary Industries NSW |
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Host research organisation | N/A |
Trial funding source | DPI NSW AOTG14013 |
Trial funding source | DAWR |
Related program |
Determining optimum nitrogen strategies for abatement of emissions for different irrigated cotton systems |
Acknowledgments |
This experiment was part of the project Determining optimum nitrogen strategies for abatement of emissions for different irrigated cotton systems (AOTG14013; 2013–17), with joint investment by NSW DPI and DAWR, and administered by CRDC. Thanks to Ray Fox for providing the experimental site and applying the irrigation treatments in the field and to Brooke Cutler and Wayne McPherson for carrying out the field sampling. All soil and plant N analyses were carried out by Clarence Mercer, NSW DPI at the ISO9001accredited laboratory at Tamworth Agricultural Institute, NSW DPI. |
Other trial partners | Co-operator Ray Fox |
Crop type | Other crop: Cotton |
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Treatment type(s) |
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Trial type | Experimental |
Trial design | Randomised,Replicated,Blocked |
Sowing machinery |
The site was sown with Sicot 748B3F on 15 October 2015. |
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Sow date | 15 October 2015 |
Harvest date | 8 April 2016 |
Plot size | 1m x 380m |
Plot replication | 3 |
Plot blocking | Randomised complete block |
Plot randomisation | yes |
Fertiliser |
Pre-plant N fertiliser was applied on 8 September 2015. For treatment summaries see Table 1 in attached report. |
Other trial notes |
This research paper is an extract from the publication Northern grains Research Results 2017, available at |
Rainfall trial gsr (mm) | 340mm |
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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.