Selected Publications Heckman, J.R., and J. Strick. Teaching Plant-Soil Relationships with Color Images of Rhizosphere pH. J. of Nat. Heckman, J.R., W.T. Hlubik, D.J. Prostak, and J.W. Paterson. Pre-sidedress soil nitrate test for sweet corn. Heckman, J.R. 1995.
Corn responses to chloride in maximum yield research.
E.A. Chamberlain, W.T. Hlubik, R.C. Mickel, and E.P. Prostko. Corn response to sidedress nitrogen in relation to soil nitrate concentration. Commun. in Soil Sci. Thompson, D.C., B.B. Clarke, and J.R. Heckman. Nitrogen Form and Rate of Nitrogen and Chloride Applications for the Control of Summer Patch in Kentucky Bluegrass.