Where is nitrogen going in long-term cropping systems?
Date
2006-03-02
Authors
Selles, F.
Lemke, R.
Zentner, R.P.
Campbell, C.A.
Journal Title
Journal ISSN
Volume Title
Publisher
ORCID
Type
Presentation
Degree Level
Abstract
Fertilizer nitrogen use efficiency (NUE) is normally low, and has led to the idea that a large proportion of N applied as fertilizer is lost from the soil. However, N balances calculated for a long-term rotation study at Swift Current indicate that losses of fertilizer N from the soil are small, and comparison of cumulative N balances with actual soil organic matter measurements show that an overwhelming proportion of this N is cycled through the organic matter, through microbially mediated processes, enhancing the fertility of the soil.
Description
Keywords
fertilizer, nitrogen use efficiency, nitrogen balances, cropping systems
Citation
Degree
Department
Program
Advisor
Committee
Citation
Part Of
Soils and Crops Workshop