Interaction of Nitrogen Fertilizer and Wheat Density in Competition with Wild Barley under Metsulfuron methyl + Sulfosulfuron Doses in Karaj and Qom

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FARHANGFAR MOHAMMAD; OVEISI MOSTAFA; RAHIMIAN MASHHADI HAMID; ALIZADEH HASAN

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Journal: IRANIAN JOURNAL OF WEED SCIENCE Year:2017 | Volume:13 | Issue:1 Page(s): 45-56

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Title

Interaction of Nitrogen Fertilizer and Wheat Density in Competition with Wild Barley under Metsulfuron methyl + Sulfosulfuron Doses in Karaj and Qom

Author(s)

FARHANGFAR MOHAMMAD | OVEISI MOSTAFA | RAHIMIAN MASHHADI HAMID | ALIZADEH HASAN | Issue Writer Certificate

Keywords

wild barley biomassQ1

nitrogen use efficiencyQ2

herbicide dose and wheat yieldQ1

Abstract

Field experiments were conducted to study the effect of nitrogen, wheat density and herbicide doses on wheat-wild barley competition in Karaj and Qom. Experiment was a split-factorial with three replications. Experimental factors were wheat densities of 300, 400 and 500 plants m-2, nitrogen levels of 240 and 300 kg ha-1 and five doses of metsulfuron-methyl plus sulfosulfuron at 0, 20, 33, 45 and 54 g ha-1. Results from both locations indicated significant interactions between treatments. Depending on herbicide dose applied wheat density effect on wild-barley biomass was different. Decrease in wild-barley biomass obtained from increasing wheat density was significantly higher with low doses of herbicide. Regarding higher nitrogen efficiency in Karaj wheat, lower nitrogen level caused more competition ability of wheat and lower wild-barley biomass. In Qom experiment, the general trend was similar, differences were not significant at p-value <0. 05. In summary, integrating 240 kg h-1 of nitrogen fertilizer with wheat density of 400 plants m-2 and herbicide dose of 45 g ha-1 resulted in highest wheat yield in Karaj, while in Qom experiment, the treatment combination of 300 kg ha-1 plus wheat density of 500 plants m-2 and 45 g ha-1 herbicide gave the best wheat yield.

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APA: Copy

FARHANGFAR, MOHAMMAD, OVEISI, MOSTAFA, RAHIMIAN MASHHADI, HAMID, & ALIZADEH, HASAN. (2017). Interaction of Nitrogen Fertilizer and Wheat Density in Competition with Wild Barley under Metsulfuron methyl + Sulfosulfuron Doses in Karaj and Qom. IRANIAN JOURNAL OF WEED SCIENCE, 13(1 ), 45-56. SID. https://sid.ir/paper/185187/en

Vancouver: Copy

FARHANGFAR MOHAMMAD, OVEISI MOSTAFA, RAHIMIAN MASHHADI HAMID, ALIZADEH HASAN. Interaction of Nitrogen Fertilizer and Wheat Density in Competition with Wild Barley under Metsulfuron methyl + Sulfosulfuron Doses in Karaj and Qom. IRANIAN JOURNAL OF WEED SCIENCE[Internet]. 2017;13(1 ):45-56. Available from: https://sid.ir/paper/185187/en

IEEE: Copy

MOHAMMAD FARHANGFAR, MOSTAFA OVEISI, HAMID RAHIMIAN MASHHADI, and HASAN ALIZADEH, “Interaction of Nitrogen Fertilizer and Wheat Density in Competition with Wild Barley under Metsulfuron methyl + Sulfosulfuron Doses in Karaj and Qom,” IRANIAN JOURNAL OF WEED SCIENCE, vol. 13, no. 1 , pp. 45–56, 2017, [Online]. Available: https://sid.ir/paper/185187/en

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