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Guidelines for Quality Management in Soil and Plant Laboratories. (FAO Soils Bulletin - 74) ISBN 92-5-104065-6 Compiled by L.P. van Reeuwijk Associate Professor Head of Laboratory International Soil Reference and Information Centre (ISRIC) Wageningen, the Netherlands with a contribution by V.J.G. Houba Associate Professor, Director of Wageningen Evaluating Programmes for Analytical Laboratories (WEPAL) Department of Soil Science and Plant Nutrition Wageningen Agricultural University Wageningen, the Netherlands INTERNATIONAL SOIL REFERENCE AND INFORMATION CENTRE Food and Agriculture Organization of the United Nations ÏÂÔØµØÖ·£ºhttp://mihd.net/1gp05b [search]fruit mycorrhiza[/search] [ Last edited by fruitmycorrhiza on 2007-12-15 at 20:25 ] |
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