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Information Journal Paper

Title

THE EFFECT OF SLOW RELEASING NITROGEN FROM PELLET FERTILIZER OF NITROGEN AND MANURE ON GRAIN YIELD AND SOME PHYSIOLOGICAL CHARACTERISTICS OF CORN

Pages

 Start Page 97 | End Page 113

Abstract

 A field study was conducted at Abourehan research farm of Tehran University in 2009 to find out the effects of slow releasing nitrogen from PELLET FERTILIZER of nitrogen and manure on GRAIN YIELD and some PHYSIOLOGICAL CHARACTERISTICS of corn (Single Cross 704). The factorial design of the study comprised of randomized complete block with three replications. Factors this experiment involved: first factor was Two levels of application method FERTILIZER include (pellet and mixed with soil) and second factor was four levels of nitrogen FERTILIZER pulse manure include (46+600, 92+600, 138+600 and 184+600 kg ha-1) In this research, a Screw Extruder setup was designed and manufactured. N FERTILIZER Increasing from 46 to 184 kg/ha had significant effect on all yield and yield components traits except number of rows per ear. Maximum GRAIN YIELD was obtained with PELLET and 184 N kg/ha treatment. Also LAI, CGR and NAR curve was maximum with applying PELLET and 184 N kg/ha treatment. Results showed PELLET method through decreasing of leaching and slow releasing of N, cause low consumption of N to 50%.

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