R. R. Riggenbach

USE OF INNOVATIVE TOOLS TO INCREASE NITROGEN USE EFFICIENCY AND PROTECT ENVIRONMENTAL QUALITY IN CROP ROTATIONS

H. R. Duke, Jorge A. Delgado, Ronald F. Follett, 2001 .

Evaluation of Nitrate-Nitrogen Transport in a Potato-Barley Rotation

J. Delgado, M. A. Dillon, R. R. Riggenbach, 2001 .