Biblio
S
J. M. Hart, Sullivan, D. M., Myers, J., and R Peachey, E.,
“Sweet corn: western Oregon”,
Extension Service, Oregon State University, 2010.
H. D., Sullivan, D. M., Owen, J. S., and Hart, J. M.,
“Soil test interpretation guide”,
Oregon State University, Extension Service, 2011.
J. M. Hart, Sullivan, D. M., Gamroth, M. J., Downing, T., and Peters, A.,
“Silage corn: western Oregon”,
Extension Service, Oregon State University, 2009.