Characterization of Denitrification and Leaching Losses of Fertilizer Nitrogen From Soil (Evolution, Isotope, Nitrous Oxide, Dinitrogen)

Quantification of leaching and denitrification losses of fertilizer N from soil requires that appropriate methods be developed for their measurement. The objectives of this work were to: (1) evaluate potential errors in measuring denitrification by use of ('15)N-tracer techniques recently developed for determination of N(,2) and N(,2)O evolved from soil; (2) evaluate three methods of estimating fertilizer N loss under field conditions (grain yield reductions, an ('15)N difference method, and a direct measurement of denitrification using the procedures in 1); and (3) evaluate the extent of N loss through leaching and denitrification in a laboratory study using semi-disturbed soil columns.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Vanden Heuvel, Richard Mark

• Agriculture, Agronomy
• Chemistry, Agricultural

Identifier

(UMI)AAI8610990

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71622