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Zawartość zarchiwizowana w dniu 2019-03-15

EFFECTS OF SOIL MANAGEMENT ON THE SOIL NITROGEN CYCLE

Cel

TO STUDY THE CHANGES IN MINERALISATION AND IMMOBILISATION OF NITROGEN IN SOILS SUBJECTED IN CONTRASTING TILLAGE METHODS.

THE RESEARCH PROGRAMME WILL EXAMINE, BOTH IN FIELD AND LABORATORY EXPERIMENTS, THE INCORPORATION OF NITROGEN-15 LABELLED FERTILISER AND UNLABELLED SOIL-DERIVED NITROGEN INTO CROP PLANTS AND SOIL ORGANIC MATTER AND ITS SUBSEQUENT RELEASE BY MINERALISATION AFTER HARVEST OF THE AERIAL TISSUES. FRACTIONATION OF THE SOIL ORGANIC MATTER ON BOTH A CHEMICAL AND BIOLOGICAL BASIS WILL BE ATTEMPTED TO DISTINGUISH THOSE FRACTIONS THAT, BY TURNING OVER RAPIDLY MAKE THE LARGEST CONTRIBUTION TO SOIL MINERAL NITROGEN SUPPLY. SOILS THAT HAVE BEEN DIRECT-DRILLED OR PLOUGHED WILL BE USED, TOGETHER WITH THOSE UNDER PERMANENT PASTURE. IN ONE FIELD EXPERIMENT THE INTERACTIONS OF DRAINAGE AND CULTIVATION WILL ALSO BE EXAMINED.

Temat(-y)

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Zaproszenie do składania wniosków

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System finansowania

CSC - Cost-sharing contracts

Koordynator

BBSRC Institute of Grassland and Environmental Research
Wkład UE
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Adres
Aberystwyth Research Centre Plas Gogerddan
SY23 3EB Aberystwyth
Zjednoczone Królestwo

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Koszt całkowity
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