THE EFFECTS OF SOURCES AND RATES OF NITROGEN ON GROWTH AND CL- AND NA+ CONCENTRATIONS IN WHEAT

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KESHAVARZ P.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Journal of Soil Research Year:2001 | Volume:15 | Issue:2 Page(s): 0-0

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Title

THE EFFECTS OF SOURCES AND RATES OF NITROGEN ON GROWTH AND CL- AND NA+ CONCENTRATIONS IN WHEAT

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KESHAVARZ P. | Issue Writer Certificate

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Abstract

In addition to the reduction of water availability and toxic ion effects in saline condition, high concentration of Na+ and Cl- ions will normally inhibit the plant nutrition. Suitable application and selection of fertilizer is a management method for enhancing yield and resistance of plants to salinity. To determine the effects of sources and rates of nitrogen on the yield, Cl- and Na+ concentration of wheat a 2-years trial factorial as completely randomized block design in three replications with three levels of N-source and four levels of N-rate was conducted at Nieshabour Agricultural Research Station in 1997-1999. The treatment were as follows:Nitrogen fertilizer from three sources: Urea, Ammonium Sulfate, Ammonium Nitrate.Nitrogen fertilizer at four rates:50%, 75%, 100% , and 125% of the recommended rate.The results showed that Ammonium nitrate significantly increased the grain yield, but the difference between Urea and Ammonium Sulfate was not significant. Also, nitrogen application increased the grain yield significantly. The highest yield was obtained with the treatment 25% higher than the recommended rate ( i.e.230 N kg/ha), and it was 10.2% more than the yield produced in the plots receiving the recommended treatment (184 N kg/ ha). As nitrogen rate increased, Cl- concentration in straw decreased, which was significant(α=0.05) at high levels of nitrogen application.

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APA: Copy

KESHAVARZ, P.. (2001). THE EFFECTS OF SOURCES AND RATES OF NITROGEN ON GROWTH AND CL- AND NA+ CONCENTRATIONS IN WHEAT. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, 15(2), 0-0. SID. https://sid.ir/paper/357525/en

Vancouver: Copy

KESHAVARZ P.. THE EFFECTS OF SOURCES AND RATES OF NITROGEN ON GROWTH AND CL- AND NA+ CONCENTRATIONS IN WHEAT. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES[Internet]. 2001;15(2):0-0. Available from: https://sid.ir/paper/357525/en

IEEE: Copy

P. KESHAVARZ, “THE EFFECTS OF SOURCES AND RATES OF NITROGEN ON GROWTH AND CL- AND NA+ CONCENTRATIONS IN WHEAT,” IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, vol. 15, no. 2, pp. 0–0, 2001, [Online]. Available: https://sid.ir/paper/357525/en

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