Investigation on the effect of nitrogen and micronutrient amounts and fertilizing methods on corn (S.C. 704) yield in Kerman condition, Iran

Subject Areas : Agroecology Journal

Farhad Homayoonfar ¹ (Scientific Board of Islamic Azad University, Kerman Branch)
Ali Reza Bahraminejad ² (Scientific Board of Islamic Azad University, Zarand Branch)

Received: 2008-02-04 Accepted : 2008-04-12 Published : 2008-04-20

Keywords: nitrogen, Fertilizer, corn, Single cross 704, Micronutrient,

Abstract :

   In order to investigate the effect of nitrogen and micronutrient amounts and fertilizing methods on corn (S.C. 704) quantity, an experiment was carried out at research station of Islamic Azad University, Kerman branch in 2005. The experimental design was the split split plot based on completely randomized block design (BCRD) with 3 replications. Source of nitrogen fertilizer, Urea, were considered in three levels (300, 450 and 600 Kg/ha) as the major plots with ( and ) fertilizer divide methods of each as the subplots. The micronutrient factor was also considered in two levels (0 and 3 ppm) as sub-subplots. Cultivation was performed as furrow system with 75cm between rows and 15cm between plants on the rows in 30th April. Nitrogen fertilizer was sprinkled in three time stages: synchronous with cultivation and 4 and 8 leave stages through fertilizing methods. The micronutrients was also sprinkled in 4 leave stage in two consecutive weeks. Plants were selected from 5m2 of three middle rows for determination of grain and biological performance at physiological ripening time. 15 plants were also selected randomly for measuring yield components. The quantity characteristics of corn, number of row in each corn, number of seed in each row, total weight of plant and weight of 1000 seeds were determined. According to the results, using 600 Kg/ha of Urea with  fertilizer dividing method resulted in higher yield than other treatments. Also, micronutrient application at 3ppm level only significantly improved total weight of plants and weight of 1000 seeds.

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