Award details

The impact of nitrogen fertiliser management regimes on nitrifier diversity and nitrification kinetics in grassland soil

Reference	D16051
Principal Investigator / Supervisor	Professor Stephen Jarvis
Co-Investigators / Co-Supervisors	Dr Christopher Clegg, Dr David Hatch
Institution	Inst of Grassland and Environmental Res
Department	Soil Environmental and Ecological Sci
Funding type	Research
Value (£)	146,340
Status	Completed
Type	Research Grant
Start date	01/04/2002
End date	01/04/2005
Duration	36 months

Abstract

The impact of current fertiliser management, and its legacy, on nitrifier diversity and concomitant N- transformation rates will be assessed by molecular profiling of nitrifier-specific 16S rRNA and functional genes and by determining the kinetics of both ammonia and nitrite oxidation in soils. The role of the rhizosphere in determining mixotrophic nitrite oxidiser population structure and activity will be assessed using 13C- substrates representative of Lolium perenne exudates in N-fertilised and unfertilised soils. This study will provide a mechanistic basis to the relationships between agricultural management practises, biodiversity and soil nutrient cycles. (Joint with grant 1/D15955).

Summary

unavailable

Committee	Closed Committee - Agri-food (AF)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

Associated awards:

D15955 The impact of nitrogen fertiliser management regimes on nutrifier diversity and nitrification kinetics in grassland soil

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