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Title: Seasonal variations of plant nutrient levels and soil microorganisms in colliery spoil with particular reference to nitrogen
Author: Williams, Peter John
ISNI:       0000 0001 3569 336X
Awarding Body: University of York
Current Institution: University of York
Date of Award: 1974
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The seasonal variations of a number of plant nutrients, pH, spoil moisture and temperature and groups of microorganisms concerned with the recycling of nitrogen were investigated in ameliorated and untreated spoils at two colliery spoil heaps of contrasting spoil pH situated in West Yorkshire.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available