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Effects of inhibitor use on nitrous oxide emissions from application of urea to pastures. Terang, Victoria, 2013-2015 [Theme 1: Inhibitors for reducing emissions]

Data Set Citation

Kelly K of Department of Primary Industries (Victoria) and Ward G of Victorian Department of Environment and Primary Industries. Effects of inhibitor use on nitrous oxide emissions from application of urea to pastures. Terang, Victoria, 2013-2015 [Theme 1: Inhibitors for reducing emissions].
kelly.80.5 (http://www.n2o.net.au/knb/metacat/kelly.80.5/html).

Metadata download:
Ecological Metadata Language (EML) File
Data Table
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Data Set Owner(s):
Individual:
Kevin Kelly
Organization:
Department of Primary Industries (Victoria)
Position:
Project Leader
Address:
Private Bag 1,
255 Ferguson Road,
Tatura,
Victoria 3616
Australia
Phone:
+61 3 5833 5359 (voice)
Email Address:
kevin.kelly@depi.vic.gov.au
Individual:
Graeme Ward
Organization:
Victorian Department of Environment and Primary Industries
Position:
Senior Research Scientist
Address:
255 Ferguson Road,
Tatura,
Victoria 3616
Australia
Phone:
+61 3 5561 9946 (voice)
Email Address:
graeme.ward@depi.vic.gov.au
Associated Party
Individual:
Ms. Siobhann McCafferty
Organization:
Institute for Future Environments, Queensland University of Technology
Position:
Data Librarian
Address:
2 George Street,
Brisbane,
QLD 4001
Australia
Phone:
+61 7 3138 0457 (voice)
Email Address:
siobhann.mccafferty@qut.edu.au
Role:
Custodian/Steward
Abstract

Data included in the package; - standard site weather data (daily) - soil temperature (50 mm) and surface soil water content (volumetric) - nitrous oxide flux data, derived from manual chamber measurements (variable time steps) - average for treatment Experimental design (5 treatments by 5 blocks) Treatments (1) No nitrogen applied, (2) 50 kg N / ha as urea after every second defoliation (simulated grazing), (3) 50 kg N / ha as UAN (urea ammonium nitrate) after every second defoliation, (4) 50 kg N / ha as urea coated with nitrification inhibitor (DMPP) after every second defoliation, and (5) 50 kg N / ha as urea coated with urease inhibitor (nBPT) after every second defoliation All herbage is removed from plots at each harvest, other fertiliser inputs annually based on soil tests Experiment commenced in July 2013 on a chromosol (drived from quaternary basalt) near Terang (38.26S, 142.88E) Objective: To assess the potential for inhibitors to reduce emissions of application of urea to pastures At the Terang site the fertiliser treatments were applied three times in 2013, 18 July 2013, 19 September 2013 and 7 November 2013. At each time of application the rate of N applied was 50 kg N/ha, given a total of 150 kg N/ha applied over the period included in this data set.

Keywords
  • Nitrous oxide
  • N2O
  • Pasture
  • Nitrification inhibitors
  • Urease inhibitors
  • Manual Chambers
  • DMPP
  • nBPT
  • Terang
  • VIC
anzsrc-for
  • 0502
  • 0799
Geographic Coverage
Geographic Description:
DemoDAIRY, Terang, Victoria, Australia 38 14 S, 142 55 E
Bounding Coordinates:
West:  
142.55  degrees
East:  
142.55  degrees
North:  
-38.14  degrees
South:  
-38.14  degrees
Contact(s)
Individual:
Kevin Kelly
Organization:
Department of Primary Industries (Victoria)
Position:
Project Leader
Address:
Private Bag 1,
255 Ferguson Road,
Tatura,
Victoria 3616
Australia
Phone:
+61 3 5833 5359 (voice)
Email Address:
kevin.kelly@depi.vic.gov.au
Methods Info
Step 1:
Description:
Manual Chambers
Nitrous oxide flux was measured using manual chambers
Instrument(s):
  • Manual Chambers
Step 2:
Description:
Water Content and Soil Temperature
Surface soil water content (volumetric) data was collected using thetaprobes speficially calibrated for the soil type at the site. Average daily reading based on average of reading collected every 6 minutes from 0000 to 2400 on the date of record.Average daily soil temperature at 50 mm, based on average of readings collected every 6 minutes, over the time period 0000 to 2400 on the date of record
Instrument(s):
  • Thetaprobes
Step 3:
Description:
Climate Data
Weather data during the experiment was recorded from an on-site weather station using the FAO-56 methodology
Instrument(s):
  • On-site weather station data using the FAO-56 methodolody
Sampling Area And Frequency:

July 2012 - January 2014

Sampling Description:

Treatments (1) No nitrogen applied, (2) 50 kg N / ha as urea after every second defoliation (simulated grazing), (3) 50 kg N / ha as UAN (urea ammonium nitrate) after every second defoliation, (4) 50 kg N / ha as urea coated with nitrification inhibitor (DMPP) after every second defoliation, and (5) 50 kg N / ha as urea coated with urease inhibitor (nBTP) after every second defoliation.

Additional Metadata
Access
Access Control:
Auth System:
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