Measurement
- Version 1 of 1
Measurement Data Component
Title: Fertiliser application dates: AC0213, Cambridgeshire, 2012
Related Party - Organisation (Author): ADAS UK Ltd.
Related Party - Organisation (Funder): Defra
Abstract:
On a commercial arable farm near Cambridge, eastern England (clay topsoil texture), direct nitrous oxide (N2O) and ammonia (NH3) emissions were measured from replicated (x3) plots (24 x 11 m), following spring applications of manufactured nitrogen (N) fertilisers to winter wheat. A control treatment was included where no N fertiliser was applied. Ammonium nitrate (AN) fertiliser (34.5% N), urea fertiliser (46% N) or an ammonium sulphate nitrate (ASN) fertiliser (26% N) were applied at a rate of 200 kg N/ha, in three split applications (mid-March, mid-April and early-May). In separate treatments, two commercially available nitrification inhibitors were tested; dicyandiamide (DCD) was sprayed at a rate of 10 kg/ha (6.5 kg N/ha) onto the AN and urea plots immediately after N fertiliser application, and a 3,4-dimethylpyrazole phosphate (DMPP) containing fertiliser (26% N) was also applied at a rate of 200 kg N/ha, in three split applications. The N supplied by the DCD was accounted for in the 200 kg N/ha application. Additionally, AN and urea fertiliser was also applied in five equal splits in mid-March, late-March, mid-April, late-April and early-May i.e. 'little and often'. This dataset is of fertiliser application rates (i.e. total nitrogen applied) and dates applied. NA = not applicable. DMPP = 3,4-dimethylpyrazole phosphate. 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 timing; Application rates; Ammonium nitrate; Urea; Ammonium sulphate nitrate; Nitrification inhibitors
Geographic Keywords: Cambridgeshire
Observed Properties: Application timing; Experimental treatment; Total 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): -0.16 Longitude (East): 0.11 Latitude (South): 52.19 Latitude (North): 52.35 |
Phenomenon Time - Start Date/Time: 2012-03-13 End Date/Time: 2013-03-13
Result Time: 2012
Valid Time - Start Date/Time: 2012-03-13 End Date/Time: 2013-03-13
Feature of Interest: biosphere
Publication Date: 2017-02-03
This data is made available under the terms of the FBA Licence.
Total file downloads: 440
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