Effect of Gibberellic, Salicylic Acids, and NPK Fertilizers on growth and chemical constituents of Rosemary plants (Rosmarinus officinalis L.).

This experiment conducted on rosemary plant (Rosmarinus officinalis L.), aimed to investigate the effect of gibberellic acid (GA3), salicylic (SA), and NPK fertilizer growth chemical constituents as well determining best concentration. After two weeks from planting rooted cuttings in plastic pots were sprayed with SA at three concentrations (0, 150 300 mg l-1), GA3 Sprayed 400 Nano (3 6 g control plants fertilized regular recommendation (200-N, 100-P, 50-K l-1). The results showed: triple interaction among factors studied indicated that which l-1 GA3, SA, nano fertilizers gave highest value number branches 19.97 branch plant-1, volatile oil percent 1.626 %, total chlorophyll content 32.70 g-1 f.w, whereas height increased 3 reached 38.30 cm, also production per 0.947 ml plant-1. It appears using those levels development plant. Further research is needed whether higher than used this will give better parameters.