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Effects of past and current crop management on leaching losses, soil microbial community composition and activity

Stark, Christine; Condron, Leo M.; Stewart, Alison; Di, Hong J. and O’Callaghan, Maureen (2005) Effects of past and current crop management on leaching losses, soil microbial community composition and activity. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, September 21-23, Adelaide, Australia. [Unpublished]

[thumbnail of 4207-Stark_etal_2005_4p_revised-ed.pdf] PDF - German/Deutsch


A lysimeter experiment was conducted to investigate the effect of past and current management practices on soil microbial biomass, activity and community composition. Intact monolith lysimeters were taken from sites of the same soil type that had been under long-term organic and conventional crop management. They were subjected to the same crop rotation and managed according to best organic and conventional practices. Mineral N loss was determined in leachates and soil samples taken before the experiment and after 30 months were analysed for biological soil properties, including microbial diversity. Results indicated that leaching losses were similar for all treatments and that crop was the main influence on microbial biomass composition and size, while microbial activity was determined by management history.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:soil; mineral N losses; microbial community composition; microbial activity; past and current management
Subjects: Soil > Soil quality > Soil biology
Research affiliation: International Conferences > 2005: 1st ISOFAR Conference > 2005: 1st ISOFAR Conference
Deposited By: ISOFAR
ID Code:4207
Deposited On:23 Oct 2006
Last Modified:12 Apr 2010 07:30
Document Language:English
Refereed:Not peer-reviewed
Additional Publishing Information:The paper archived here is the final paper submitted by the authors to the conference Researching Sustainable Systems.
The final and edited papers are available at the following publication:
Köpke, Ulrich; Niggli, Urs; Neuhoff, Daniel; Cornish, Peter; Lockeretz, Willie und Willer, Helga, (Hrsg.) (2005) Researching Sustainable Systems. Proceedings of the First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR) Held in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the National Association for Sustainable Agriculture, Australia (NASAA), 21 - 23 September 2005, Adelaide Convention Centre, Adelaide, South Australia. Research Institute of Organic Agriculture FiBL, CH-Frick, and International Society of Organic Agriculture Research (ISOFAR), c/o Institute of Organic Agriculture (IOL), DE-University of Bonn. https://orgprints.org/4013/
Distribution: Paper copies may be ordered from FiBL at a cost of 28 Euros plus mailing costs (see FiBL shop at http://www.fibl.org/shop); FiBL order number 1394. A PDF version of the proceedings is available free of charge for ISOFAR members via the member area of www.isofar.org.
The final papers submitted by the authors are available at https://orgprints.org/view/projects/int-conf-isofar-2005.html.

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