EFFECT OF NITROGEN RATE AND METHOD OF NITROGEN APPLICATION ON YIELD AND SOME CHARACTERISTICS OF SPEED FEED FORAGE SORGHUM

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VARMAZYARI A.; KHALILIMAHALLEH J.; ROSHDI M.; KHARAZMI K.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2011 | Volume:3 | Issue:11 Page(s): 53-66

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Title

EFFECT OF NITROGEN RATE AND METHOD OF NITROGEN APPLICATION ON YIELD AND SOME CHARACTERISTICS OF SPEED FEED FORAGE SORGHUM

Author(s)

VARMAZYARI A. | KHALILIMAHALLEH J. | ROSHDI M. | KHARAZMI K. | Issue Writer Certificate

Keywords

APPLICATION TIMEQ2

FORAGE SORGHUMQ3

YIELDQ2

NITROGENQ2

Abstract

To study the effects of NITROGEN levels and its APPLICATION TIME on fresh, dry matter and agronomic traits of Speed-feed cultivar of FORAGE SORGHUM an experiment was carried out in factorial design as randomized blocks with three replications in Khoy agricultural and natural resources research station in 2009. Four levels of N (60, 120, 180 and 240 kg/ha) were applied together with four APPLICATION TIMEs of NITROGEN (T1: all applications prior to sowing, T2:1/2 prior to sowing + 1/2 start of 2th cut, T3: 1/4 in every prior to sowing, 30-40 cm of plant height in 1th cut, start of 2th cut and 30-40 cm of plant height in 2th cut, T4: 1/6 in every prior sowing, 30-40 cm of plant height and swelling of flag leaf of 1th cut and start, 30-40 cm of plant height and swelling of flag leaf of 2th cut The highest total dry matter, total fresh fodder and protein YIELD was obtained from application of 240 kg/ha N (92.06, 20.16 and 2.22 t/ha respectively) but there weren't significant differences with application of 180 kg/ha. That the highest total fresh fodder and Dry matter, 89.28 and 19.62 t/ha respectively were obtained from T4 APPLICATION TIMEs with no difference with T2, T3.the highest dry matter correlation showed by stem dry weight and fresh fodder by r=0.686 and r=0.872 respectively. Because of the absence of significant differences between amounts of 180 and 240 kg/ha, application of 180 kg/ha N with T4 splits is recommended and it is concluded that there was loss of nutrients via leaching and sublimation of N in one stage application.

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APA: Copy

VARMAZYARI, A., KHALILIMAHALLEH, J., ROSHDI, M., & KHARAZMI, K.. (2011). EFFECT OF NITROGEN RATE AND METHOD OF NITROGEN APPLICATION ON YIELD AND SOME CHARACTERISTICS OF SPEED FEED FORAGE SORGHUM. JOURNAL OF RESEARCH IN CROP SCIENCES, 3(11), 53-66. SID. https://sid.ir/paper/167908/en

Vancouver: Copy

VARMAZYARI A., KHALILIMAHALLEH J., ROSHDI M., KHARAZMI K.. EFFECT OF NITROGEN RATE AND METHOD OF NITROGEN APPLICATION ON YIELD AND SOME CHARACTERISTICS OF SPEED FEED FORAGE SORGHUM. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2011;3(11):53-66. Available from: https://sid.ir/paper/167908/en

IEEE: Copy

A. VARMAZYARI, J. KHALILIMAHALLEH, M. ROSHDI, and K. KHARAZMI, “EFFECT OF NITROGEN RATE AND METHOD OF NITROGEN APPLICATION ON YIELD AND SOME CHARACTERISTICS OF SPEED FEED FORAGE SORGHUM,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 3, no. 11, pp. 53–66, 2011, [Online]. Available: https://sid.ir/paper/167908/en

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