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Download CSV Application dates AC0116 Warwickshire 2013.csv 0.01MB


Measurement Data Component

Title: Fertiliser application dates: AC0116, Warwickshire, 2013
Related Party - Organisation (Author): ADAS
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:
On a commercial farm near Stratford-upon-Avon, central England (clay topsoil texture), direct N2O-N emissions were measured from replicated (x3) plots (4 x 15 m) following spring applications of manufactured nitrogen (N) fertilisers to grassland. A control treatment was included where no N fertiliser was applied. Ammonium nitrate (AN) fertiliser (34.5% N) was applied at 5 different rates; 80, 160, 240, 320 and 400 kg N/ha, and urea fertiliser (46% N) at a rate of 320 kg N/ha, in four split applications (early-March, early-April, late-May and mid-July). In separate AN and urea treatments, a commercially available nitrification inhibitor was tested; dicyandiamide (DCD) was sprayed at a rate equivalent to 10 kg DCD/ha onto the plots immediately after each N fertiliser application. The N supplied by the DCD was accounted for in the total N application of 320 kg N/ha, which was applied in four splits. Additionally, AN fertiliser was also applied in six splits in early-March, mid-March, early-April, mid-April, late-May and mid-July; the first four splits were of 30-40 kg/N ha i.e. ‘little and often’. This dataset is of fertiliser application rates (i.e. total nitrogen applied) and dates applied. NA = not applicable. 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: Application timingApplication ratesAmmonium nitrateUreaNitrification inhibitorsDCDManufactured nitrogen fertilizers
Geographic Keywords: Warwickshire
Observed Properties: Application timingExperimental treatmentTotal nitrogen
Parameter: Application date split 1
Parameter: Application date split 2
Parameter: Application date split 3
Parameter: Application date split 4
Parameter: Application date split 5
Parameter: Application date split 6
Parameter: Fertiliser Application Rate
Parameter: Fertiliser application rate split 1
Parameter: Fertiliser application rate split 2
Parameter: Fertiliser application rate split 3
Parameter: Fertiliser application rate split 4
Parameter: Fertiliser application rate split 5
Parameter: Fertiliser application rate split 6
Parameter: Nitrification inhibitor application rate
Parameter: Nitrification inhibitor application rate split 1
Parameter: Nitrification inhibitor application rate split 2
Parameter: Nitrification inhibitor application rate split 3
Parameter: Nitrification inhibitor application rate split 4
Parameter: Nitrification inhibitor application rate split 5
Parameter: Nitrification inhibitor application rate split 6
Parameter: Total nitrogen application rate
Parameter: Treatment

Geographic Extent -
    Longitude (West): -1.91
    Longitude (East): -1.63
    Latitude (South): 52.11
    Latitude (North): 52.28

Phenomenon Time -  Start Date/Time: 2013-03-04 End Date/Time:  2014-03-03
Result Time: 2013
Valid Time -  Start Date/Time: 2013-03-04 End Date/Time:  2014-03-03
Feature of Interest: biosphere
Publication Date: 2017-04-05

This data is made available under the terms of the Open Government Licence (Version 3).

Total file downloads: 35

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