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Leaching of Mineral Nitrogen, Organic Nitrogen and Phosphorous in Conventional & Organic Farming in Korean Greenhouse

Sohn, Sang-Mok; Kim, Young-Ho; Yoon, Deok-Hoon and Kuecke, Martin (2005) Leaching of Mineral Nitrogen, Organic Nitrogen and Phosphorous in Conventional & Organic Farming in Korean Greenhouse. Poster at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]

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Summary

The aim of this study was to receive basic data on the transport of mineral and organic N and P from the top soil to the subsoil in conventional and organic farming in Korea. It was focused to deliver the information about the environmental impact of Korean organic farming systems with regards to ground water pollution. High ammonium concentrations have been recorded in the seepage waters from the organic farming system, while the concentrations were negligibly low in the conventional farming plots as also found in other open field studies. The content of organic nitrogen in the seepage water from conventional farming systems were up to 4 % of the total nitrogen in the seepage water, while it was increased to 8% in organic farming systems. The content of total organic phosphorous are is 6 times higher in the organic farming soils under greenhouse conditions compared to the conventionally fertilized soils under greenhouse. It was concluded that the Korean organic farming system shows some ecological risks in term of ground water pollution not only by nitrate and mineral phosphate, but also by organic nitrogen and phosphorus.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Organic compost, Organic farming, Groundwater Pollution, Greenhouse, Conventional farming, Organic nitrogen, Mineral nitrogen, Organic phosphorous, Mineral phosphorous, Leaching
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Research affiliation: International Conferences > 2005: 1st ISOFAR Conference > 2005: 1st ISOFAR Conference
Related Links:http://orgprints.org/4013/, http://www.isofar.org/adelaide2005, http://orgprints.org/view/projects/int-conf-isofar-2005.html
Deposited By: ISOFAR,
ID Code:4479
Deposited On:03 Nov 2005
Last Modified:12 Apr 2010 07:30
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:The paper presented here is the final paper submitted by the authors to the conference Researching Sustainable Systems.
The final edited papers are available with 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. http://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 is available free of charge for ISOFAR members via the member area of www.isofar.org.

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