Paper Details

Effects of biological and chemical fertilizers nitrogen on yield and yield components in Cumin (Cuminum cyminum L.)

Shocofeh Gholami, Zeynab Kobra Pishva, Ghasem Hosein Talaei, Majid Amini Dehaghi

DOI: https://dx.doi.org/10.12692/ijb/4.12.93-99

Int. J. Biosci. 4(12), 93-99. June, 2014. (PDF)

Abstract:

Considering the importance of medicinal plants growth and biological application of fertilizers with sustainable agricultural production in order to eliminate or reduce chemical input to achieve desirable and sustainable quality, an experimental research was conducted based on a randomized complete block design with two factors of chemical nitrogen (46% urea nitrogen) at two levels (0, 25 and 50 kg/ha-1), biological nitrogen (combination of Azotobacter spp. and Azospirillum spp.) at two levels inoculated and non-inoculated in 2010. The results of analysis of variance showed that the effects of biological nitrogen (combination of Azotobacter spp. And Azospirillum spp.) of chemical nitrogen (urea 46%) in different treatments on plant height, umbel number per plant, grain number per umbel and grain yield were significant at P≤0.01. However, there were no significant differences between treatments in about weight of 1000 grains and grain number per plant. The results showed that the greatest plant highest (28.18 cm) and grain yield (75.600 g/m2) and were obtained by a treatment of biological nitrogen + chemical nitrogen (25 kg/ha-1). Results indicate that applying the combined biological nitrogen and chemical nitrogen fertilizer can be practical and helpful method to increase Cumin yield, yield components and reduce the environmental pollution.