THE EFFECT OF PLANT DENSITIES AND TIME OF NITROGEN APPLICATION ON SOME AGRONOMIC CHARACTERISTIC OF RAPESEED

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DANESH SHAHRAKI A.A.R.; KASHANI ALI; MESGARBASHI M.; NABIPOUR M.; KOUHI DEHKORDI M.

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Journal: Year:2008 | Volume:21 | Issue:2 (79 IN AGRONOMY AND HORTICULTURE) Page(s): 10-17

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Title

THE EFFECT OF PLANT DENSITIES AND TIME OF NITROGEN APPLICATION ON SOME AGRONOMIC CHARACTERISTIC OF RAPESEED

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Keywords

TOP DRESSINGQ2

YIELD AND YIELD COMPONENTSQ3

SEED OIL CONTENTQ3

HARVEST INDEXQ2

Abstract

Effect of plant density and time of nitrogen fertilizer application on some agronomic characteristics of rape seed were studied in a split plot as base of RCB design with four replications in 2003-2004 at college of Agricultural, Shahid Chamran University of Ahvaz. In this study, main plots were consisted of 3 levels of plant density include 60, 80 and 100 plants per m2 and sub-plots were 3 times of nitrogen fertilizer application include application of nitrogen in 3 times: 1/3 at sowing date, 1/3 when stem elongation starts and 1/3 at the beginning of flowering, application of nitrogen in 2 stage: 1/3 at sowing date and 2/3 when stem elongation starts and application of nitrogen in 2 times: 1/2 at sowing date and 1/2 at stem elongation. The results showed that plant density affected the HARVEST INDEX (HI), seed yield, oil yield and number of pods per m2 significantly. There were not significant difference in number of seeds per pod and 1000 seed weight. Time of nitrogen application have significant effect on seed yield and number of pod per m2. The Highest grain yield and oil yield (4404.4 and 1825.0 kg/ha respectively) were obtained with 100 plants per m2 and application of nitrogen at 3 times.

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APA: Copy

DANESH SHAHRAKI, A.A.R., KASHANI, ALI, MESGARBASHI, M., NABIPOUR, M., & KOUHI DEHKORDI, M.. (2008). THE EFFECT OF PLANT DENSITIES AND TIME OF NITROGEN APPLICATION ON SOME AGRONOMIC CHARACTERISTIC OF RAPESEED. PAJOUHESH-VA-SAZANDEGI, 21(2 (79 IN AGRONOMY AND HORTICULTURE)), 10-17. SID. https://sid.ir/paper/18715/en

Vancouver: Copy

DANESH SHAHRAKI A.A.R., KASHANI ALI, MESGARBASHI M., NABIPOUR M., KOUHI DEHKORDI M.. THE EFFECT OF PLANT DENSITIES AND TIME OF NITROGEN APPLICATION ON SOME AGRONOMIC CHARACTERISTIC OF RAPESEED. PAJOUHESH-VA-SAZANDEGI[Internet]. 2008;21(2 (79 IN AGRONOMY AND HORTICULTURE)):10-17. Available from: https://sid.ir/paper/18715/en

IEEE: Copy

A.A.R. DANESH SHAHRAKI, ALI KASHANI, M. MESGARBASHI, M. NABIPOUR, and M. KOUHI DEHKORDI, “THE EFFECT OF PLANT DENSITIES AND TIME OF NITROGEN APPLICATION ON SOME AGRONOMIC CHARACTERISTIC OF RAPESEED,” PAJOUHESH-VA-SAZANDEGI, vol. 21, no. 2 (79 IN AGRONOMY AND HORTICULTURE), pp. 10–17, 2008, [Online]. Available: https://sid.ir/paper/18715/en

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