Replicability of nitrogen recommendations from ramped calibration strips in winter wheat.Published in:Precision Agriculture, 2011, v. 12, n. 5, p. 653, doi. 10.1007/s11119-010-9209-yBy:Roberts, David;Brorsen, B.;Taylor, Randal;Solie, John;Raun, WilliamPublication type:Article