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Nitrous oxide emissions from urine patches - experiment 1 part 1. Terang, Victoria 2009-2010 [Theme 1: Inhibitors for reducing emissions]

Data Set Citation

Kelly K of Future Farming Systems Research Division, Victorian Department of Environment and Primary Industries (Victoria). Nitrous oxide emissions from urine patches - experiment 1 part 1. Terang, Victoria 2009-2010 [Theme 1: Inhibitors for reducing emissions].
kelly.24.22 (http://www.n2o.net.au/knb/metacat/kelly.24.22/html).

Metadata download:
Ecological Metadata Language (EML) File
Data Table
Licence
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Data Set Owner(s):
Individual:
Mr. Kevin Kelly
Organization:
Future Farming Systems Research Division, Victorian Department of Environment and Primary Industries (Victoria)
Position:
Project Leader
Address:
Private Bag 1,
Ferguson Road,
Tatura,
Victoria 3616
Australia
Phone:
+61 3 5833 5359 (voice)
Email Address:
kevin.kelly@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

A study of the impact of the nitrification inhibitors dicyandiamide (DCD) on nitrous oxide emissions from dairy cows urine deposited on pasture was conducted at Terang in south-western Victoria, Australia from August 2009 to April 2010. Nitrous oxide fluxes were measured on four replicates of six treatments. Treatments were; nil applied (no nitrogen added treatment), DCD applied 14 August 2009, urine@1000kg N/ha applied 11 September 2009, urine@1000kg N/ha applied September 2009 plus DCD @ 10kg a.i./ha applied 14 August 2009, urine @ 1000kg N/ha applied 14 August 2009, urine @ 1000kg N/ha applied 14 August plus DCD @ 10 kg a.i./ha applied 14 August 2009. Nitrous oxide flux was measured in TWO replicates of treatments 3,4,5 and 6. Measurement system used automated chambers liked to a Fourier Transform infrared spectometer for gas analysis. Daily flux (g N2O-N/ha/day) was calculated for each chamber. Soil water (surface 0-65 mm) and soil temperature (50mm) was measured continuously in each chamber base. Soil mineral N content of all treatment and replicates was measured (0-100 mm) routinely. Initial site soil physical and chemical status were defined. Standard meteorological information was collected for an on-site weather station.

Keywords
  • Nitrous oxide
  • N2O
  • Nitrification inhibitors
  • Soil mineral nitrogen
  • Dicyandiamide (DCD)
  • Bovine urine
  • Pasture
  • Dairy Cattle
  • Terang
  • Auto Chambers
  • 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:
Mr. Kevin Kelly
Organization:
Future Farming Systems Research Division, Victorian Department of Environment and Primary Industries (Victoria)
Position:
Project Leader
Address:
Private Bag 1,
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:
Flux Measurements
Nitrous oxide flux was measured in TWO replicates of treatments 3,4,5 and 6. Flux was measured using 8 automatic enclosure chambers (0.8m*0.8m*0.47m) with air drawn from each chamber in sequence at a flow rate of approximately 3 L/min and passed through a glass cell mounted in a Fourier Transform Infrared spectrometer (FTIR), all air was recycled to chambers. Instantaneous flux was calculated for one chamber every 30 minute period from an 18 minute closure period. Daily flux (g N2O-N/ha/day) was calculated from 6 measurement periods on each chamber each day as an arithmetic mean. Each chamber had to fixed bases with the chamber moved very week. Soil water (surface 0-65 mm) and soil temperature (50mm) was measured in each chamber base.Soil mineral N content of al treatment and replicates was measured (0-100 mm) routinely.
Instrument(s):
  • FTIR - standard Bomem FTLA2000 with KBr optics, multipass White cell and InSb detector, 32 m pathlength gas cell (approximate volume 4 L)
Step 2:
Description:
Soil Water
Surface soil water content (0-65 mm), two probes per chamber base, logged every 30 minutes (averag of 10 minute readings)
Instrument(s):
  • Theta-Probes Delta T MK2x
Step 3:
Description:
Soil Temperature
Soil temperature - logged every 30 minutes (averag of reading every 10 minutes)
Instrument(s):
  • Type-T thermocouples
Step 4:
Description:
Weather Station
Standard measurement weather station
Instrument(s):
  • MEA - Australia
Sampling Area And Frequency:

August 2009 - April 2010

Sampling Description:

Experimental design (6 treatments by 4 replicates) * Treatment 1 - nil applied, * Treatment 2 - DCD applied 14 August 2009 * Treatment 3 - urine @ 1000 kg N/ha applied 11 September 2009 * Treatment 4 - urine @ 1000 kg N/ha applied 11 September 2009 plus DCD @ 10 kg a.i./ha applied 14 August 2009 * Treatment 5 - urine @ 1000 kg N/ha applied 14 August 2009 * Treatment 6 - urine @ 1000 kg N/ha applied 14 August 2009 plus DCD @ 10 kg a.i./ha applied 14 August 2009.

Additional Metadata
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Access Control:
Auth System:
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