Investigation of organic and chemical fertilizer on the essential oil and seed yield of Moldavian balm (Dracocephalum moldavica L.)

Article Type:
Research/Original Article (دارای رتبه معتبر)
In order to examine the impact of biofertilizer on the essential oil and seed yield of Moldavian balm, a factorial experiment with a randomized complete block design and three replications were designed at the Khoy Agricultural Research Center in the West Azerbaijan Province. Five fertilization levels were applied: 100% urea (70 kg N ha−1), 75% urea (52.5 kg N ha−1) + 25% azocompost (3.85 ton ha-1), 50% urea (35 kg N ha−1) + 50% azocompost (7.77 ton ha-1), 25% urea (17.5 kg N ha−1) + 75% azocompost (11.55 ton ha-1), and 100% azocompost (1555 ton ha-1) on two Moldavian balm landrace (Urmia and the modern cultivar SZK-1).  The results of this study indicated that a 100% urea fertilizer regime produced the highest dry herbage yield. The highest seed yield was achieved with a 100% urea fertilizer application of approximately 1,122 kg ha-1. Inoculating seeds with Azotobacter and Azospirillum bacteria resulted in the highest harvest index, with a value of 22.4 percent. The Urmia landrace genotype had the highest yield of essential oil (20.5 kg ha-1). Based on the findings, the 50% urea + 50% azocompost fertilizer treatment had the greatest effect on the majority of the investigated characteristics.
Journal of Emergy, Life Cycle and System Analysis in Agriculture, Volume:2 Issue: 2, Winter-Spring 2022
209 to 213  
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