Biblio
“Seven Years of Biosolids versus Inorganic Nitrogen Applications to Tall Fescue”, Journal of Environment Quality, vol. 30, no. 6, p. 2188, 2001.
, “Biosolids Processing Effects on First- and Second-Year Available Nitrogen”, Soil Science Society of America Journal, vol. 68, no. 1, p. 162, 2004.
, “Worksheet for calculating biosolids application rates in agriculture”, Washington State University Cooperative Extension, 2007.
, “Fertilizing with yard trimmings”, Washington State University Cooperative Extension, 2002.
, “Cómo hacer y usar el compost”, Oregon State University, Extension Service, 2001.
, “Backyard Composting”, Cooperative Extension, Washington State University, 2001.
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