public read uid=datalibrarian,o=unaffiliated,dc=ecoinformatics,dc=org all uid=kelly,o=unaffiliated,dc=ecoinformatics,dc=org all uid=deantoni,o=unaffiliated,dc=ecoinformatics,dc=org read uid=labadz,o=unaffiliated,dc=ecoinformatics,dc=org read Mr. Kevin Kelly Future Farming Systems Research Division, Victorian Department of Environment and Primary Industries (Victoria) Project Leader

Private Bag 1 255 Ferguson Road Tatura Victoria 3616 Australia

+61 3 5833 5359 kevin.kelly@depi.vic.gov.au Ms. Siobhann McCafferty Institute for Future Environments, Queensland University of Technology Data Librarian

2 George Street Brisbane QLD 4001 Australia

+61 7 3138 0457 siobhann.mccafferty@qut.edu.au Custodian/Steward A study of the impact of the nitrification inhibitor nitrapryin on nitrous oxide emissions from dairy sludge and emissions for dairy cow dung was conducted at Terang in south-western Victoria, Australia from May 2014 - April 2015. Two replicates of the 4 treatments for emissions measurement (Nil addition, Sludge @308 kg N/ha (23 May 2014), Sludge @308 kg N/ha plus nitrapryin incorporated before application (23 May 2014), dung @ 604 kg N/ha in total as 4 dung application times - 23 May 2013 (176 kg N/ha), 22 August 2013 (120 kg N/ha), 12 November 2014 (145 kg N/ha) and 15 January 2015 (163 kg N/ha)as discrete dung pat at each time of application. 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.. Initial site soil physical and chemical status were defined. Standard meteorological information was collected for an on-site weather station. Nitrous oxide N2O Nitrification inhibitors Soil mineral nitrogen Nitrapyrin Dairy pond sludge Bovine dung Pasture Dairy Cattle Auto Chambers Terang VIC 0502 0799 anzsrc-for DemoDAIRY, Terang, Victoria, Australia 38 14 S, 142 55 E 142.92 142.92 -38.24 -38.24 1332290672437

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.

-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)

Surface soil water content (0-65 mm), two probes per chamber base, logged every 30 minutes (averag of 10 minute readings)

Theta-Probes Delta T MK2x

Soil temperature - logged every 30 minutes (averag of reading every 10 minutes)

Type-T thermocouples

Standard measurement weather station

MEA - Australia July 2012 - January 2013 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. Terang sludge and dung data Terang sludge and dung experiment final data.xlsx application/vnd.ms-excel ecogrid://knb/datalibrarian.230.1 Terang weather file Weather data text and tables Terang flux files Flux data text and tables megajoulePersquaremeter mm/day cubicmm/cubicmm Soil water content (volumetric) Nitrous oxide flux g N2O-N/ha/d mm^3/mm^3 Soil mineral nitrogen