عنوان مقاله [English]
In order to study the effects of vermicompost and biological nitrogen fertilizer on growth characteristics and yield of summer savory, an experiment was conducted at Firouzkuh, Iran in 2015. The factors were nitrogen biofertilizer (Control, Nitroxine and Supernitroplus) and vermicompost (0, 5, 10 and 15 t ha-1). The experimental design was factorial experiment based on randomized complete blocks design with three replications. Measured traits were consisted of plant height, number of lateral branches per plant, shoot fresh weight, shoot dry matter and flowering shoot dry matter. Results showed that all measured traits were affected by treatments, significantly. The highest number of branches per plant (15.4) and shoot fresh weight (11890.75 kg ha-1) was obtained by using 10 ton vermicompost per hectare. Applying 15 ton vermicompost per hectare caused maximum plant height (35.9 cm), dry matter yield (3484.19 kg ha-1), flowering shoot dry matter (1722.19 kg ha-1). Nitrogen biofertilizer had significant effects on all traits. But, there were not significant differences between Nitroxine and Supernitroplus application. Mean comparison of interaction effects showed that using supernitroplus and 10 ton vermicompost per hectare caused maximum fresh (13722.32 kg ha-1) and dry shoot yield (4064.23 kg ha-1).