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Maintaining Soil Fertility Miscellany

Maintaining Soil Fertility through 2010

webFred Magdoff and Harold van EsSustainable Agriculture Resear...2010-01-01
webOntario Ministry of Agricultur...2009-05-01
webAlexandra Bot and Jose BenitesUN Food and Agriculture Organi...2005-01-01
webDoreen G. HowardMother Earth News2003-06-01
webBarbara C. BellowsATTRA2003-03-01
webPreston SullivanAppropriate Technology Transfe...1999-07-01