The experiment was performed in the form of factorial on the basis of randomized complete block with 3 replicates in the research farm of agriculture faculty of Shahrekord University. Factors were include different levels of nitrogen and phosphorus. Quantitative and qualitative parameters such as height, fresh and dry weight, stem diameter, leaf area, leaf number, total leaf chlorophyll, carotenoids and flavonoids in flower, N and P in aerial parts, beginning of flowering and flowering duration was measured. The results showed that N and P have enhanced growth parameters, including wet and dry weight, plant height, stem diameter and leaf area. These changes were more evident in the interaction of phosphorus and nitrogen and the highest increase was obtained in 150 and 100 kg per hectare N and P, respectively. This pattern of changes was increased with increasing levels of nitrogen and phosphorus. Levels of nitrogen and phosphorus and their interaction on the number of leaves showed no significant effect. The effect of different nitrogen treatments on leaf chlorophyll and flower carotenoid showed a significant effect and with increasing the levels of nitrogen, the amount of these factors had increased. Different phosphorous treatments had no significant effect on leaf chlorophyll and flower carotenoid. With increasing the levels of N and P, the amount of flavonoid decreased and the highest amount of flavonoid was observed in 50 and 0 kg per hectare of N and P, respectively, but The highest content of flavonoids in the plant in the 150 kg N ha and 100 kg P ha-, respectively. Increasing levels of nitrogen and phosphorus, nitrogen and phosphorus was increased in the plant but their interaction did not show any significant effect on the amount of these elements in plant. Nitrogen and phosphorus showed significant effects on the beginning of flowering and flowering time. Increasing of N and P have accelerated flowering and duration of flowering in plant and the most rapid flowering and most of the flowering period had gained in 150 and 100 kg per hectare of N and P, respectively.
