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Measurement


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Download CSV Daily SMN NT26 Norfolk 2004.csv 0.01MB


Measurement Data Component

Title: Daily topsoil mineral nitrogen: NT26, Norfolk, 2004
Related Party - Organisation (Author): ADAS
Related Party - Organisation (Funder): Defra
Abstract:
Nitrous oxide emissions (2 closed static chambers/plot) were monitored for about 12 months, following the spring application, by hand, of various nitrogen fertilisers (ammonium nitrate, urea, urea+urease inhibitor nBTPT [trade name Agrotain®], urea ammonium nitrate solution and urea ammonium nitrate solution+urease inhibitor nBTPT [trade name Agrotain®]) and from an untreated control. Three fertiliser applications were made in order to achieve the target, commercial rate of 220 kg N/ha. There were 3 replicate plots (3.5 x 24 m) of each treatment arranged in a randomised block design. The plots were established on a winter wheat crop sown the previous autumn, on a silty clay loam soil in East Anglia, UK. This dataset contains topsoil mineral nitrogen values measured to a depth of 0-15 cm. Measurements were taken on selected days when nitrous oxide flux measurements were also made. Treatment values shown are the mean of three blocks. The first measurement is a 'background' measurement i.e. before any treatments were applied. nBTPT = N-(n-butyl) thiophosphoric triamide.
Subject Keywords: Soil mineral nitrogenTop soilArable landWinter wheatSilty soils
Geographic Keywords: Norfolk
Observed Properties: Ammonium-nitrogenDateExperimental treatmentNitrate-nitrogenSampling depthYear
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): 0.16
    Longitude (East): 0.43
    Latitude (South): 52.67
    Latitude (North): 52.82

Phenomenon Time -  Start Date/Time: 2004-03-01 End Date/Time:  2005-02-17
Result Time: 2005-02-17
Valid Time -  Start Date/Time: 2004-03-01 End Date/Time:  2005-02-17
Feature of Interest: biosphere
Publication Date: 2017-04-07

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

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