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Nitrous oxide emissions from urine and dung. Terang, Victoria, 2013-2014 [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 and dung. Terang, Victoria, 2013-2014 [Theme 1: Inhibitors for reducing emissions].
kelly.52.19 (http://www.n2o.net.au/knb/metacat/kelly.52.19/html).

Metadata download:
Ecological Metadata Language (EML) File
Data Table
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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,
255 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 nitrapryin on nitrous oxide emissions from dairy cow urine and emissions for diary cow dung was conducted at Terang in south-western Victoria, Australia from 19 September 2013 - 21 May 2014. Experimental design was (4 treatments by 6 replicates) for soil sampling and two replicates of the 4 treatments for emissions measurement (Nil addition, Urine @1000 kg N/ha, Urine @1000 kg N/ha plus nitrapryin surface applied, dung @ 448 kg N/ha). 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
  • Nitrapyrin
  • Bovine Urine
  • Bovine dung
  • Pasture
  • Dairy Cattle
  • Auto Chambers
  • Terang
  • VIC
anzsrc-for
  • 0502
  • 0799
Geographic Coverage
Geographic Description:
DemoDAIRY, Terang, Victoria, Australia 38 14 S, 142 55 E
Bounding Coordinates:
West:  
142.92  degrees
East:  
142.92  degrees
North:  
-38.24  degrees
South:  
-38.24  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,
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:
Flux Measurements
Eight enclosure chambers (0.8m*0.8m*0.47m) automatically controlled. Linked to a Fourier Transfrom Infrared (FTIR) spectometer for spectral analysis, which are tranformed to concentrations evrey minute, from which flux is calculated. Chambers are sampled in sequence (dictated by the software), with each chamber sampled for a 30 minute period each 4 hours. Flux densities have been calculated using linear least squares from gas density measurements, other curves have been fitted but have not shown any improvement in data fit, as such all calcuation of based on a linear model.
Instrument(s):
  • -A Fourier Transform Infrared (FTIR) spectrometer, (Matrix-M IRcube supplied by Bruker Optics (Ettlingen, Germany), with a mid-IR globar source, CaF2 beamsplitter and thermoelectrically (TE) cooled MCT detector operating above 2000 cm-1) supplied as Spectronus (Ecotech Australia)
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:

July 2012 - January 2013

Sampling Description:

The treatments were Treatment 1 - nil applied, Treatment 2 - urine @1000 kgN/ha applied 19 September 2013, Treatment 3 - urine @ 1000 kg N/ha applied 19 September 2013 with nitrapyrin sprayed on after application of urine at 1 kg a.i./ha and Treatment 4 - fresh dairy cow dung aiming to apply equivalent to 400 kg N/ha applied as three dung pads as circles each of 0.25 m diameter on 19 September 2013. Nitrous oxide flux was measured in TWO replicates of all treatments.

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