A slow release nitrogen fertiliser produced by simultaneous granulation and superheated steam drying of urea with brown coal

Michael T. Rose; Emily L. Perkins; Biplob K. Saha; Evone C. W. Tang; Timothy R. Cavagnaro; W. Roy Jackson; Karen P. Hapgood; Andrew F. A. Hoadley; Antonio F. Patti

doi:10.1186/s40538-016-0062-8

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A slow release nitrogen fertiliser produced by simultaneous granulation and superheated steam drying of urea with brown coal

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A slow release nitrogen fertiliser produced by simultaneous granulation and superheated steam drying of urea with brown coal

Michael T. Rose, Emily L. Perkins, Biplob K. Saha, Evone C. W. Tang, Timothy R. Cavagnaro, W. Roy Jackson, Karen P. Hapgood, Andrew F. A. Hoadley and Antonio F. Patti

Chemical and biological technologies in agriculture, Vol.3, 10

09/05/2016

DOI: https://doi.org/10.1186/s40538-016-0062-8

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Abstract

Superheated steam drying

Nitrous oxide

Greenhouse gas emissions

Soil enhancement

Controlled-release fertiliser

Lignite

Background The inefficient use of nitrogen (N) fertiliser as a consequence of N losses from soil is a pressing issue in broad-acre agricultural systems. The research reported here tested the hypothesis that granulation of synthetic N fertiliser (urea) with a natural organic C resource (brown coal) would reduce fertiliser N loss from the soil system. Results Urea-enriched brown coal granules were simultaneously formed and dried within a pilot-scale superheated steam dryer. After application to unplanted soil columns, the urea-brown coal granules reduced nitrous oxide emission by up to 40 %, reduced mineral nitrogen leaching and maintained higher levels of N in topsoil when compared to conventional urea alone. Reduced gaseous N losses without a reduction in plant N uptake were also observed in planted soil columns treated with urea-brown coal granules. Conclusions Brown coal-urea blended fertiliser showed potential for more efficient use of N in the long term and has environmental benefits in retaining more N in the soil.

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Title: A slow release nitrogen fertiliser produced by simultaneous granulation and superheated steam drying of urea with brown coal
Creators: Michael T. Rose - Monash University
Emily L. Perkins - Monash University
Biplob K. Saha - Monash University
Evone C. W. Tang - Monash University
Timothy R. Cavagnaro - University of Adelaide
W. Roy Jackson - Monash University
Karen P. Hapgood - Monash University
Andrew F. A. Hoadley - Monash University
Antonio F. Patti - Monash University
Publication Details: Chemical and biological technologies in agriculture, Vol.3, 10
Publisher: Springer International Publishing
Grant note: Brown Coal Innovation Australia (http://dx.doi.org/10.13039/100008553)
Identifiers: 991013125991402368
Academic Unit: Faculty of Science and Engineering
Language: English
Resource Type: Journal article

A slow release nitrogen fertiliser produced by simultaneous granulation and superheated steam drying of urea with brown coal

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