Effect of Organic and Biofertilizers on Yield and Some Qualitative Characteristics of the Dragon's Head (Lallemantia iberica) in Dryfarming Conditions

In order to evaluate the effects of biofertilizers, organic and chemical fertilizers on quantitative and qualitative yield of Dragon's Head (Lallemantia iberica) under dry farming, a field experiment was conducted based on randomized complete block design with three replications and eight treatments at the farm located in West Azerbaijan province - Nagadeh, Iran during growing reason of 2015-2016. Treatments included application of Vermicompost (10 t.ha-1), biofertilizers , Azotobarvar1 (Azotobacter) and Barvar Phosphate-2 (the combination of Pseudomonas putida and Bacillus lentus), chemical fertilizer (N, P), Vermicompost+ biofertilizers, 50% chemical fertilizer+ biofertilizer, 75% Vermicompost + 25% chemical fertilizer, 75% Vermicompost + biofertilizers + 25% chemical fertilizer and control (Without any fertilizer). Different traits such as plant height, number of nut goal per plant, number seed per capitol, thousand seed weight, biological yield, seed yield, oil percentage and oil Yield, percentage of protein were recorded. The results showed that application of biofertilizers enhanced the seed yield, yield components and qualitative traits of balangu. Among treatments, combined usage of biofertilizers showed the greater increasing in studied traits than individual consumption. The highest seed yield, Essential oil content, mucilage yield and protein content were obtained from combined usage of biofertilizers (75% Vermicompost + biofertilizers + 25% chemical fertilizer). According to the results, it seems that integrated application especially triple combination under dry farming conditions had positive effects on seed yield, qualitative traits of Dragon's Head and reduction of chemical fertilizers in the recommended region.