Biblio
2009
J. M. Hart, Sullivan, D. M., Gamroth, M. J., Downing, T., and Peters, A.,
“Silage corn: western Oregon”,
Extension Service, Oregon State University, 2009.
2007
T. Downing, Sullivan, D. M., Hart, J. M., and Gamroth, M. J.,
“Manure application rates for forage production”,
Extension Service, Oregon State University, 2007.