Fig. 3From: Higher yields of hybrid rice do not depend on nitrogen fertilization under moderate to high soil fertility conditionsRelationships of grain yield with N fertilizer (YN) to grain yield without N fertilizer (Y0, a) and increase in grain yield with N fertilizer (∆YN, b) in hybrid rice cultivars. Data are a combination of those from hybrid rice cultivars in Figs. 1 and 2 Back to article page