Measurement
- Version 1 of 1
Measurement Data Component
Title: Daily nitrous oxide flux measurements: AC0116, County Down, 2012-2013
Related Party - Organisation (Author): AFBI
Related Party - Organisation (Funder): Defra
Related Party - Organisation (Funder): Scottish Government
Related Party - Organisation (Funder): Welsh Assembly Government
Related Party - Organisation (Funder): DAERA Northern Ireland
Abstract:
At the AFBI Hillsborough research farm near Hillsborough, south-east Northern Ireland (clay loam topsoil texture), direct N2O-N emissions were measured from replicated (x3) plots (4 x 12 m) arranged in a randomised block design. Dairy cattle slurry (30 m3/ha) was applied to permanent grassland in autumn (early-October) and spring (early-April). The cattle slurry was applied using watering cans simulating bandspreading and surface broadcast application with slurry applied across the whole area of the plot for surface broadcast treatments and applied in bands spaced 20cm apart to simulate bandspread treatments. In two separate treatments, the commercially available nitrification inhibitor - dicyandiamide (DCD) was applied by knapsack sprayer to the sward, within 1 hour of slurry application by surface broadcast and bandspreading, to give a DCD application rate of 10 kg /ha (6.5 kg N/ha). An untreated control treatment was included where no slurry was applied. Following slurry application, measurements of direct N2O-N were made over c.12 months, using 5 static chambers (0.8 m2 total surface area) per plot and analysed by gas chromatography. This dataset is of daily nitrous oxide flux (g N2O-N/ha/d) measurements. The first measurement is a 'background' measurement i.e. before any treatments were applied. If the data file is downloaded/opened in excel, dates may appear as dd-mm-yy instead of the standard yy-mm-dd.
Subject Keywords: Nitrous oxide; Cattle slurry; Nitrification inhibitors; DCD; Grassland soils; Clay soils
Geographic Keywords: County Down
Observed Properties: Date; Experimental blocking; Experimental treatment; Nitrous oxide mass flux; Year
Parameter: Block number
Parameter: Daily nitrous oxide emission
Parameter: Measurement date
Parameter: Treatment
Parameter: Year experiment started
Geographic Extent - Longitude (West): -6.22 Longitude (East): -5.95 Latitude (South): 54.37 Latitude (North): 54.53 |
Phenomenon Time - Start Date/Time: 2012-10-08 End Date/Time: 2014-04-10
Result Time: 2014-04-10
Valid Time - Start Date/Time: 2012-10-08 End Date/Time: 2014-04-10
Feature of Interest: biosphere
Publication Date: 2017-04-05
This data is made available under the terms of the FBA Licence.
Total file downloads: 303
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