Interaction between Nicosulfuron rate and time of application on Johnson grass and maize competition indices

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Einallahi f.; Ovisi M.; RAHIMIAN MASHHADI H.

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Journal: WEED RESEARCH JOURNAL Year:2017 | Volume:9 | Issue:1 Page(s): 1-15

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Title

Interaction between Nicosulfuron rate and time of application on Johnson grass and maize competition indices

Author(s)

Einallahi f. | Ovisi M. | RAHIMIAN MASHHADI H. | Issue Writer Certificate

Keywords

Corn growth indicesQ2

Corn yieldQ1

DensityQ1

Reduced doseQ2

Abstract

Chemical weed control is a main component of management programs in crop productions. Herbicide application time significantly increases herbicide efficiency. A field experiment was conducted to study the effect of Nicosulfuron time of application and dose on S. halepense competition with maize. Experiment was designed as split-plot in three replications. Main plots were herbicide dose of 0, 40, 60, 80, 100 g a. i. /ha and sub plots were herbicide application time as of 2-4, 4-6, 6-8 leaf stage of maize growth. Growth parameters of maize including height, leaf area (LA) and total biomass (TB) were measured. Results showed that, the highest height, LA and TB were obtained from Nicosulfuron application at 60 g a. i. /ha in 2-4 leaf stage of maize and no significant difference was shown with herbicide recommended dose or higher. Delaying in herbicide application led to increase the height and TB of Johnson grass and higher competition with maize. It caused decrease in maize growth indices. Current study showed that herbicide dose has main effect on changing weed-crop interactions. Successful management would change competition in advantage to crops using lower herbicide doses to achieve both economic and environmental purposes in sustainable crop protection.

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APA: Copy

Einallahi, f., Ovisi, M., & RAHIMIAN MASHHADI, H.. (2017). Interaction between Nicosulfuron rate and time of application on Johnson grass and maize competition indices. WEED RESEARCH JOURNAL, 9(1 ), 1-15. SID. https://sid.ir/paper/230792/en

Vancouver: Copy

Einallahi f., Ovisi M., RAHIMIAN MASHHADI H.. Interaction between Nicosulfuron rate and time of application on Johnson grass and maize competition indices. WEED RESEARCH JOURNAL[Internet]. 2017;9(1 ):1-15. Available from: https://sid.ir/paper/230792/en

IEEE: Copy

f. Einallahi, M. Ovisi, and H. RAHIMIAN MASHHADI, “Interaction between Nicosulfuron rate and time of application on Johnson grass and maize competition indices,” WEED RESEARCH JOURNAL, vol. 9, no. 1 , pp. 1–15, 2017, [Online]. Available: https://sid.ir/paper/230792/en

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