Evaluation of Grain and Essential Oil Yield of Cumin (Cuminum cyminum L.) Using of Penergetic, Chemical Fertilizers and Magnetic Water

This study was conducted to investigate the effect of water (irrigation with ordinary water and magnetic water) and fertilizer treatments on cumin growth and yield by split plot experiment based on randomized complete block design in three replications at the Research Farm of Tabriz Branch Islamic Azad University, Tabriz, Iran, in 2018. Treatments included control without fertilizer, application of nitrogen fertilizer, application of Penergetic fertilizer P, K and application of nitrogen fertilizer with 50% dose with use of Penergetic P, K. Results showed that, the highest grain yield (164 g.m-2) was obtained in nitrogen fertilizer application and application of chemical fertilizer and Penergetic P, K under magnetic irrigation conditions. This treatments increased grain yield in comparison with control (42.6%). Biological yield also showed a similar response to the application of magnetic irrigation and fertilizer treatments. Based on the results of two treatments, application of nitrogen fertilizer alone and nitrogen fertilizer with Penergetic P, K produced a significant increase in essential oil percentage, but the highest essential oil yield was obtained from application of chemical fertilizer (3.13 g.m-2) however, application of Penergetic fertilizer caused a significant increase in the percentage and essential oil yield, although less than the increase caused by nitrogen fertilizer. In general, with respect to economic performance, using Penergetic, the level of nitrogen fertilizer can be reduced without any significant reduction in grain yield. On the other hand, magnetic irrigation has an important role in increasing the effect of application of fertilizers on grain yield.