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 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.