Experimental determination of nitrous oxide emission factors for arable land. Experimental site in Devon, 2007

At Rothamsted Research - North Wyke in south west England nitrous oxide (N2O) emissions were monitored following spring ammonium nitrate fertiliser applications at 6 different rates; 0 (i.e. untreated control), 70, 90, 130, 160 and 200 kg N ha-1. Up to two separate fertiliser applications were made in order to reach the target application rate. There were 3 replicate plots (4 x 12 m) of each treatment arranged in a randomised block design. The plots were established on a winter wheat crop sown the previous autumn, on a coarse sandy loam soil. Direct nitrous oxide emissions were measured from each treatment for 12 months using the static chamber technique (3 chambers per plot) and GC analysis. The Devon, 2007 experiment contains data sets of; annual nitrous oxide emission, annual nitrous oxide emission factor, soil moisture, temperature, rainfall and crop yield (from the 130 kg N ha-1 treatment only) and soil measurements. 6 files and explanatory metadata available at DOI