Virginia Cooperative ExtensionMaguire, Rory O.2014-06-062014-06-062009http://hdl.handle.net/10919/48470Animal manures are a good source of nitrogen (N) and phosphorus (P) for agricultural crops, but they have an imbalance in their N to P ratio.5 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.CropsSoilsPoultryExtension publicationhttp://pubs.ext.vt.edu/442/442-310/442-310_pdf.pdfAnimal manuresSoil fertilityNitrogenPhosphorusFertilizers