Effects of different levels of Farmax® nano fertilizer and foliar spraying time on growth and effective substance of German chamomile (Matricaria recutita)

In this research، the effect of foliar spraying times and different levels of Farmax® nano fertilizer on morphological characteristic and dry and fresh flower yield، essential oil and chamazulene percentage of chamomile (Matricaria recutita L.) CV. Bodegold was studied. The experiment was factorial in the bacic of randomized complete blocked design (RCBD) with eight treatment and four replications. The treatments included four amounts of nano fertilizer (0، 1، 3 and 5ml\l) as first factor and two foliar spraying times (tiller stage and 2 after weeks) as second factor. The results indicated that foliar spraying time had a significant effect on plant height، numbers of tiller، total fresh weight plant and dry flower yield. Different of levels Farmax® nano fertilizer had significant effect on majority characteristic. The interaction effect had significant effect on height plant and root and dry flower yield. So، maximum height plant (103. 5cm) and dry flower yield (174. 38g/m2) were obtained at 2 foliar spraying times and 3ml/l nano fertilizer concentration and maximum height root was obtained at one foliar spraying times and 5 ml/l nano fertilizer concentration، but 2 foliar spraying times and 3ml/l nano fertilizer concentration treatment to be increased on the most of the characteristic especially essential oil percent (0. 753 weight percent) but do not have effect significant. The total results showed that 2 foliar sparing times and 3 ml/l nano fertilizer concentration was the best of treatment.