Blain, D.2007-11-121996-04-012007-11-121996http://hdl.handle.net/10625/13385ThesisThesis, University of Toronto, 1996Text1 digital file (156 p. : ill.)Application/pdfenTREESSOIL FERTILITYRIVER BASINSPERUAMAZON REGIONSUSTAINABLE AGRICULTURELEGUMINOSAEENVIRONMENTAL PROTECTIONRESOURCES CONSERVATIONFertility factors limiting the growth of pioneer trees on upland fallow soils of the Amazon Basin, Iquitos, PeruThesis