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Measurement


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Download CSV Daily SMN AC0116 Ceredigion 2011-2012.csv 0.03MB


Measurement Data Component

Title: Daily topsoil mineral nitrogen: AC0116, Ceredigion, 2011-2012
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:
At ADAS Pwllpeiran near Cwmystwyth, mid Wales (clay loam topsoil texture), direct N2O-N emissions were measured from replicated (x3) plots (5 x 15 m) arranged in a randomised block design. Dairy cattle slurry (c.30 m3/ha) and beef cattle FYM (25 t/ha) were applied to permanent grassland in autumn (late-September) and spring (early-May). The cattle slurry was applied using the ADAS small plot applicator set up for surface broadcast and trailing shoe application. The solid manure was spread by hand. In two separate treatments, the commercially available nitrification inhibitor - dicyandiamide (DCD) was applied by knapsack sprayer to the sward after slurry application by surface broadcast and trailing shoe to give a DCD application rate of 10 kg /ha (6.5 kg N/ha). An untreated control treatment was included where no manure was applied. This dataset contains topsoil mineral nitrogen values measured to a depth of 0-10 cm. Measurements were taken from all treatments, on selected days when nitrous oxide flux measurements were also made. 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: Ceredigion
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): -3.99
    Longitude (East): -3.71
    Latitude (South): 52.25
    Latitude (North): 52.42

Phenomenon Time -  Start Date/Time: 2011-09-29 End Date/Time:  2013-04-16
Result Time: 2013-04-16
Valid Time -  Start Date/Time: 2011-09-29 End Date/Time:  2013-04-16
Feature of Interest: biosphere
Publication Date: 2017-04-05

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

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