Restoration of ecosystem function in an abandoned sandpit: plant and soil responses to paper de-inking sludge

abonos abonos fosfatados abonos nitrogenados absorption de substances nutritives amendement du sol application rates azote biomasa biomass biomasse canada cation cationes cations densidad density desechos industriales dose d'application elymus elymus elongatus engrais enmiendas del suelo fertilizers fosforo industrial wastes ion exchange lodos residuales mine spoil mineral nutrients nitrogen nitrogen fertilizers nutrient uptake nutrientes minerales phosphate fertilizers phosphore phosphorus quebec reclamation sewage sludge soil amendments