Original scientific paper

Organic and Inorganic Nitrogen Fertilization Effects on Some Physiological and Agronomical Traits of Chickpea (Cicer arietinum L.) in Irrigated Condition

2013, 14 (3)   p. 881-893

Ali Namvar , Raouf SHARIFI, Teymur KHANDAN , Majid MOGHADAM


The effects of organic and inorganic nitrogen fertilization on some physiological and agronomical traits of chickpea (Cicer arietinum L.) cv. ILC 482, investigated at the Experimental Farm of the Agriculture Faculty, University of Mohaghegh Ardabili. The trial was laid out in spilt plot design based on randomized complete block with four replications. Experimental factors were mineral nitrogen fertilizer at four levels (0, 50, 75 and 100 kg urea/ha) in the main plots, and two levels of inoculation with Rhizobium bacteria (with and without inoculation) as sub plots. N application and Rh. inoculation showed positive effects on physiological and agronomical traits of chickpea. The highest value of leaf RWC recorded in 50 kg urea/ha that was statistically in par with 75 kg urea/ha application while, usage of 75 kg urea/ha showed the maximum stem RWC. The maximum CMS obtained form application of 75 kg urea/ha. Chlorophyll content, leaf area index and grains protein content showed their maximum values in the highest level of nitrogen usage (100 kg urea/ha). Moreover, inoculated plants had the highest magnitudes of all physiological traits. In the case of agronomical traits, the highest values of plant height, number of primary and secondary branches, number of pods per plant, number of grains per plant, grain and biological yield were obtained from the highest level of nitrogen fertilizer (100 kg urea/ha) and Rh. inoculation. Application of 75 kg urea/ha was statistically in par with 100 kg urea/ha in all of these traits. The results pointed out that some N fertilization (i.e. between 50 and 75 kg urea/ha) as starter can be beneficial to improve growth, development, physiological traits and total yield of inoculated chickpea.


cell membrane stability, chickpea, chlorophyll content, nitrogen fertilizer, relative water content, rhizobium inoculation, yield

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