Recovery of Nitrogen-15-Labeled Liquid Anhydrous Ammonia Applied to Soil

Although liquid anhydrous ammonia (LAA) is the most extensively used nitrogen (N) fertilizer in U.S. and Illinois agriculture, knowledge concerning its transformations in soil is limited. The understanding of LAA transformations and the products it forms in soil are agronomically important because they ultimately determine the effectiveness and efficiency of LAA as a N fertilizer. The study of LAA transformations in soil has been severely hampered in the past by the lack of proper isotopic concentrations of ('15)N-labeled LAA required to carry out such research. Quantitative techniques for LAA application on a laboratory scale have also been difficult.

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

• Norman, Richard James

• Agriculture, Agronomy

Identifier

(UMI)AAI8410009

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71594