EVALUATION OF NITROGEN FERTILIZER MANAGEMENT EFFECTS ON YIELD IN FLOWERING STAGE OF RAPESEED IN GORGAN REGION

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BEHDADIAN ALI REZA; SOLTANI AFSHIN; ZEINALI EBRAHIM; AJAMNORUZI HOSEIN; MASOUMI HASSAN

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2013 | Volume:15 | Issue:1 Page(s): 163-174

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Title

EVALUATION OF NITROGEN FERTILIZER MANAGEMENT EFFECTS ON YIELD IN FLOWERING STAGE OF RAPESEED IN GORGAN REGION

Author(s)

Keywords

CRITICAL NITROGENQ1

FERTILIZER MANAGEMENTQ2

NITROGEN NUTRITION INDEXQ2

RAPESEEDQ2

SEED YIELDQ2

Abstract

To evaluate the effects of nitrogen management at yellow budding stage on SEED YIELD with using NITROGEN NUTRITION INDEX (ratio of nitrogen concentration in the plant to optimum concentration), of RAPESEED farms in Gorgan, an experiment was conducted as a nested model arranged in a complete randomized design (CRD) in 2010. Fifteen RAPESEED fields were classified at three levels of management (optimum, middle, weak). During the experiment, questionnaires were completed by farmers for quantification of agricultural management. The results showed that levels of management are significantly difference from NITROGEN NUTRITION INDEX (NNI) (P<0.01). Although quantities of NITROGEN NUTRITION INDEX (NNI) were higher in optimum level of management than the middle and weak levels, but at all management levels during the growing season, the index was less than one. This indicates restriction in development and production due to nitrogen deficiency. NITROGEN NUTRITION INDEX in yellow budding stage have, significant positive correlation (P<0.05) with SEED YIELD, and confirmed importance of access to nitrogen sources in yellow budding stage.

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APA: Copy

BEHDADIAN, ALI REZA, SOLTANI, AFSHIN, ZEINALI, EBRAHIM, AJAMNORUZI, HOSEIN, & MASOUMI, HASSAN. (2013). EVALUATION OF NITROGEN FERTILIZER MANAGEMENT EFFECTS ON YIELD IN FLOWERING STAGE OF RAPESEED IN GORGAN REGION. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 15(1), 163-174. SID. https://sid.ir/paper/209323/en

Vancouver: Copy

BEHDADIAN ALI REZA, SOLTANI AFSHIN, ZEINALI EBRAHIM, AJAMNORUZI HOSEIN, MASOUMI HASSAN. EVALUATION OF NITROGEN FERTILIZER MANAGEMENT EFFECTS ON YIELD IN FLOWERING STAGE OF RAPESEED IN GORGAN REGION. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2013;15(1):163-174. Available from: https://sid.ir/paper/209323/en

IEEE: Copy

ALI REZA BEHDADIAN, AFSHIN SOLTANI, EBRAHIM ZEINALI, HOSEIN AJAMNORUZI, and HASSAN MASOUMI, “EVALUATION OF NITROGEN FERTILIZER MANAGEMENT EFFECTS ON YIELD IN FLOWERING STAGE OF RAPESEED IN GORGAN REGION,” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 15, no. 1, pp. 163–174, 2013, [Online]. Available: https://sid.ir/paper/209323/en

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