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Measurement


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Download CSV Daily SMN AC0116 Warwickshire 2013 urine.csv 0.03MB


Measurement Data Component

Title: Daily topsoil mineral nitrogen: AC0116, Warwickshire, 2013, urine
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:
An experiment was carried out near Stratford-upon-Avon, central England (clay topsoil texture) using small field plots (4.5 x 3.8 m) arranged in a randomised block design with three replicates per treatment. Cattle urine (at 5 L/m2), synthetic urine (at 5 L/m2) and cattle dung (at 20 kg/m2) was applied to grassland in early-May (spring), mid-August (summer) and in mid-October (autumn) 2013. The synthetic urine was prepared using the formulation described for “R2” in the paper by Kool et al., (2006). A control treatment was included where no urine or dung was applied. In a separate treatment, a commercially available nitrification inhibitor was tested; dicyandiamide (DCD) was pre-mixed with the urine prior to application to give an application rate of 10 kg /ha for the DCD. The urine and dung was collected from lactating dairy cows at Reading University, kept refrigerated at <4°C and applied within seven days of collection. Reference: Kool, D.M., Hoffland, E., Abrahamse, P.A and van Groenigen, J.W. (2006). What artificial urine composition is adequate for simulating soil N2O fluxes and mineral N dynamics Soil Biology and Biochemistry 38, 1757-1763. This dataset contains topsoil mineral nitrogen values measured to a depth of 0-10 cm. Measurements were taken from all treatments on selected days. 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: Soil mineral nitrogenTop soilGrassland soilsClay soils
Geographic Keywords: Warwickshire
Observed Properties: Ammonium-nitrogenDateExperimental blockingExperimental treatmentNitrate-nitrogenSampling depthYear
Parameter: Block number
Parameter: Depth of soil sampling
Parameter: Measurement date
Parameter: Soil ammonium-nitrogen content
Parameter: Soil nitrate-nitrogen content
Parameter: Treatment
Parameter: Year experiment started

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

Phenomenon Time -  Start Date/Time: 2013-04-25 End Date/Time:  2014-09-24
Result Time: 2014-09-24
Valid Time -  Start Date/Time: 2013-04-25 End Date/Time:  2014-09-24
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: 4

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