The Long-Term Fertilization Trials in Halle (Saale), Germany A Tool for Sustainable and Environmentally Compatible Land Management Contributions of Plant Nutrition Science in Halle 13 - Merbach, Wolfgang; Deubel, Annette; SpringerLink (Online service) (Wiesbaden : Deutscher Universitäts-Verlag / GWV Fachverlage GmbH, Wiesbaden, 2007)
Keywords: Economics; Technology; Economics/Management Science; Technology Management