Evaluation Effect of Vermicompost and Nano Iron on Agro-Physiological Traits of Corn (Zea mays L.)

In order to investigate the effect of vermicompost and Nano Iron on yield and yield components of maize, a farm experiment was done in a factorial based on completely randomized blocks design with three repetitions in Damavand in 2013. The first factor was vermicompost in two levels included no applying and applying (vermicompost 1 kg.m-2) and the second factor was Nano iron fertilizer with four levels included no application (control), seed coated application, foliar application and both seed coated and foliar application. The result showed that all traits significantly affected by Vermicompost and Nano iron. Meaning comparisons showed that application of vermicompost caused to reach the best result for nearly all investigated traits than control. Applying Nano iron significantly increased stem height, dry weight, total chlorophyll, yield, biological yield and harvest index. Nano iron application in a form of seed coated and foliar application was better than the other levels. Finally it’s suggested that to reach the best results should be applied of vermicompost and Nano iron in a form of seed coated and foliar application.