The research projects are primarily aimed at development of new knowledge and methods concerning the improvement of nutrient management in agriculture.
http://www.nmi-agro.nl
Information about the production, distribution and use of potash and its influence on soil fertility. Includes maps of soil K levels.
http://www.ppi-ppic.org/
International organization of more than 10,000 professionals and students involved in conservation. Publishes The Journal of Soil and Water Conservation.
http://www.swcs.org/
The primary purpose of the Society is to advance the discipline and practice of soil science by acquiring and disseminating information about soils in relation to crop production,...
http://www.sssea.4t.com
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