1. Does Post-harvest Nitrogen Application Affect Blueberry Yield or Cold Hardiness?

In central Washington, nitrogen (N) management in blueberries typically consists of all N being applied prior to harvest.  For early cultivars, such as Duke, this means all fertilizer is applied before the end of June, leaving a long period of growth with no supplemental N.  To evaluate the potential for splitting N fertilizer applications into pre- and post-harvest timings, we conducted an experiment in a randomized complete block design with four replicates on a commercial ‘Duke’... J.R. Davenport, G.A. Hoheisel, L.W. Devetter