Abstract

To investigate the effects of biological fertilizer and nano zinc and their interaction on morphophysiological traits and yield of maize, an experiment was conducted as a factorial experiment based on randomized complete block design with three replications at Natural Resource Research Institute of Damavand city in Iran in 2013. In this experiment, factors including biological fertilizer and chemical fertilizers at four levels: (control or without the use of chemical and biological fertilizer, biological fertilizer application only (Nitragin), applying recommended amounts of chemical fertilizer (100% dose), chemical fertilizer (75% dose and Nitragin application) and zinc fertilizers on three levels (control or no fertilizer, application of chelated zinc and zinc application of nano zinc), respectively. Traits such as plant height, ear height, total chlorophyll, SLA and yield were measured. The results showed that the impact of biological fertilizer combined with chemical fertilizer was significant on all traits. The results showed that the impact of zinc on stem height, total chlorophyll, SLA and yield was significant. As well as their interaction effects on plant height, ear length and SLA were significant.