If you are curious upon one the most important biological phenomenon on this earth please visit site http://forestgeomat.for.ulaval.ca/brf. It deals with basic new knowledge with regard to forest fertilty which can be transfered to agricultural soils initiating new biological upgrading processus from the forest for agricultural purposes. A first synthesis can be read: «The hidden world that feeds us: the living soil.» Professeur Gilles Lemieux 14 février 1997 Département des Sciences du Bois et de la Forêt Faculté de Foresterie et de Géomatique Université Laval Québec G1K 7P4 QUÉBEC Canada
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