Journal article

Soil nitrogen dynamics in irrigated maize systems as impacted on by nitrogen and stubble management

RB Edis, D Chen, G Wang, DA Turner, K Park, M Meyer, C Kirkby

AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE | CSIRO PUBLISHING | Published : 2008

Abstract

The soil nitrogen (N) dynamics of an irrigated maize system in which stubble retention and stubble burned treatments were superimposed over treatments of varying N fertiliser rate were studied. The field site was near Whitton, New South Wales, Australia, and the work described here is part a life cycle analysis of greenhouse gas emissions from maize project. The objective of this part of the work was to quantify the fate of fertiliser N applied at the site. Field measurements of denitrification, mineral N content and recovery of ¹⁵N-labelled urea from microplots with and without ammonium thiosulfate were complimented with laboratory studies of denitrification and nitrous oxide (N₂O) flux. Si..

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