Fig. 9From: Zinc Oxide Nanoparticles Foliar Application Effectively Enhanced Zinc and Aroma Content in Rice (Oryza sativa L.) GrainsDynamic changes of nitrogen content of grains after heading in 2019 (a) and 2020 (b). Error bars show standard error of replicates (n = 3). Values followed by different lowercase letters were significantly different at the 0.05 probability level among different treatmentsBack to article page