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Measurement Data Component

Title: Soil moisture data: 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 contains measurements of soil moisture as soil water-filled pore space (%) taken on the same days as nitrous oxide emissions measurements were made. NA = not applicable. The first measurement is a 'background' measurement i.e. before any treatments were applied. Water-filled pore space values are the mean of three blocks. The measurements were taken across all treatments in each block. 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: Soil water contentArable landTop soilClay soils
Geographic Keywords: Cambridgeshire
Observed Properties: DateExperimental treatmentSampling depthSoil water-filled pore spaceYear
Parameter: Depth of soil sampling
Parameter: Measurement date
Parameter: Treatment
Parameter: Water-filled pore space
Parameter: Year experiment started

Geographic Extent -
    Longitude (West): -0.16
    Longitude (East): 0.11
    Latitude (South): 52.19
    Latitude (North): 52.35

Phenomenon Time -  Start Date/Time: 2012-03-12 End Date/Time:  2013-03-13
Result Time: 2013-03-13
Valid Time -  Start Date/Time: 2012-03-12 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 Open Government Licence (Version 3).

Total file downloads: 54

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