by Sezen, U Uzay, Barney, Jacob N, Atwater, Daniel Z, Pederson, Gary A, Pederson, Jeffrey F, Chandler, J Mike, Cox, T Stan, Cox, Sheila, Dotray, Peter, Kopec, David, Smith, Steven E, Schroeder, Jill, Wright, Steven D, Jiao, Yuannian, Kong, Wenqian, Goff, Valorie, Auckland, Susan, Rainville, Lisa K, Pierce, Gary J, Lemke, Cornelia, Compton, Rosana, Phillips, Christine, Kerr, Alexandra, Mettler, Matthew, Paterson, Andrew H
Published in PloS one (18.10.2016)

by Banuelos, Jaime B, Walworth, James L, Brown, Paul W, Kopec, David M
Published in Agronomy journal (01.11.2011)

by Marcum, K.B, Pessarakli, M, Kopec, D.M
Published in HortScience (01.06.2005)

by Pessarakli, Mohammad, Kopec, David M
Published in Journal of food, agriculture & environment (2009)

by Kopec, David M., Walworth, James L., Gilbert, Jeffrey J., Sower, Gregory M., Pessarakli, Mohammad
Published in Agronomy journal (01.01.2007)

by Pessarakli, Mohammad, Harivandi, M. A., Kopec, David M., Ray, Dennis T.
Published in International journal of agronomy (01.01.2012)

by Pessarakli, M, Marcum, K.B, Kopec, D.M
Published in Journal of plant nutrition (01.01.2005)

by Suarez-Rey, E.M, Choi, C.Y, McCloskey, W.B, Kopec, D.M
Published in Irrigation and drainage (01.12.2006)

by Jalali-Farahani, H.R, Slack, D.C, Kopec, D.M, Matthias, A.D
Published in Agronomy journal (01.11.1993)

by Pessarakli, Mohammad, Harivandi, M. A., Kopec, David M., Ray, Dennis T.
Published in International journal of agronomy (2012)

by KOPEC, David M, WALWORTH, James L, GILBERT, Jeffrey J, SOWER, Gregory M, PESSARAKLI, Mohammad
Published in Agronomy journal (2007)

by Kopec, David
Published in University Wire (12.04.2006)

by Mohammad Pessarakli, M. A. Harivandi, David M. Kopec, Dennis T. Ray
Published in International Journal of Agronomy (01.12.2012)

by Morris, Bob, Kopec, David M
Year of Publication 2010

by Kopec, David M
Published in Grounds Maintenance (01.05.2001)

by Kopec, Danny, Pileggi, Christopher, Ungar, David, Shetty, Shweta
Year of Publication 2016