EFFECTS OF PLANT DENSITY AND NITROGEN APPLICATION METHODS ON YIELD AND YIELD COMPONENTS OF GRAIN MAIZE

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BAHRANI M.J.; SEIDI A.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2005 | Volume:12 | Issue:3 Page(s): 128-135

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Title

EFFECTS OF PLANT DENSITY AND NITROGEN APPLICATION METHODS ON YIELD AND YIELD COMPONENTS OF GRAIN MAIZE

Author(s)

BAHRANI M.J. | SEIDI A. | Issue Writer Certificate

Keywords

PLANT DENSITYQ3

N APPLICATION METHODSQ4

N TOPDRESSINGQ4

YIELD COMPONENTSQ4

Abstract

A field experiment was carried out to study the effects of PLANT DENSITY, and nitrogen application methods on yield, and YIELD COMPONENTS of grain maize (Zea mays L.)(SC 704 hybrid) at Bakhtajerd Agric. Exp. Sta., Darab, Iran in 1998. The experiment was conducted as a split plot arranged in randomized complete block design with four replications. Treatments consisted of three plant densities (5.33, 6.67 and 8.82 plants m-2) as main plots and five N APPLICATION METHODS (all N at planting, 1/2 at planting, and the rest as topdressing, 1/3 at planting, and the rest as topdressing, 1/4 at planting, and the rest as topdressing, and all N as top dressing) as subplots. The total applied N was 240 kg N ha-1. OF of Nitrogen topdressing was applied in stages 5-7 leaves, 12-14 leaves, and tassel appearance growth stages. Results showed that increased PLANT DENSITY did not significantly affect the ear number per plant, and harvest index. Increasing PLANT DENSITY from 5.33 to 6.67 plants m-2 had no significant effect on 1000-seed weight, but seed number per ear, grain, and proteins yield significantly decreased with increased PLANT DENSITY to 8.89 plants m-2. The highest grain and protein yield were obtained at 6.67 plants m-2. Nitrogen application methods had a significant effect on seed number per ear, 1000-seed weight, seed and protein yields. The highest rates were obtained when N was applied as 1/4 at planting, and 3/4 as topdressing which was not significantly different with applying 1/3 N at planting, and 2/3 as topdressing. It was generally concluded that the highest seed, and protein yields was obtained with planting 6.67 plants m-2, and applying 1/4 N at planting, and the rest as topdressing.

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تاثیر آرایش کاشت و تراکم بوته بر عملکرد و اجزای عملکرد دانه و اجزای آن در دو هیبرید ذرت

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APA: Copy

BAHRANI, M.J., & SEIDI, A.. (2005). EFFECTS OF PLANT DENSITY AND NITROGEN APPLICATION METHODS ON YIELD AND YIELD COMPONENTS OF GRAIN MAIZE. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 12(3), 128-135. SID. https://sid.ir/paper/9763/en

Vancouver: Copy

BAHRANI M.J., SEIDI A.. EFFECTS OF PLANT DENSITY AND NITROGEN APPLICATION METHODS ON YIELD AND YIELD COMPONENTS OF GRAIN MAIZE. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2005;12(3):128-135. Available from: https://sid.ir/paper/9763/en

IEEE: Copy

M.J. BAHRANI, and A. SEIDI, “EFFECTS OF PLANT DENSITY AND NITROGEN APPLICATION METHODS ON YIELD AND YIELD COMPONENTS OF GRAIN MAIZE,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 12, no. 3, pp. 128–135, 2005, [Online]. Available: https://sid.ir/paper/9763/en

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