THE STUDY OF NITROGEN MANAGEMENT AND FORAGE HARVEST TIME ON FORAGE AND GRAIN YIELD AND REMOBILIZATION OF BARELY CULTIVAR JONOOB

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MOJDAM MANI

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Journal: CROP PHYSIOLOGY Year:2010 | Volume:1 | Issue:4 Page(s): 85-97

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Title

THE STUDY OF NITROGEN MANAGEMENT AND FORAGE HARVEST TIME ON FORAGE AND GRAIN YIELD AND REMOBILIZATION OF BARELY CULTIVAR JONOOB

Author(s)

MOJDAM MANI | Issue Writer Certificate

Keywords

BARELYQ2

NITROGENT HARVEST TIMEQ2

FORAGE AND GRAIN YIELDQ3

REMOBILIZOTIONQ3

Abstract

In order to study of effect of different amounts of nitrogen and forage harvest time on grain and forage yield and remobilization of BARELY cultivar Jonoob, an experiment was conducted in a factorial form in a randomized completely block design (RCBD) in Ghalechenen, located in Kootabdollah in Ahvaz city during 2008-2009.The experiment treatments included four levels of nitrogen per hectare (60, 90, 120, and 150) in the form of urea fertilizer, and three forage harvest time including none- forage harvest, forage harvest at the time of stem elongation without reproductive meristem cut, and forage harvest at the time of stem elongation with reproductive meristem cut of main stem. The results indicated that forage harvest treatments had a significant reduction in grain yield compared to control treatment (none- forage harvest). Among the nitrogen fertilizer treatments, the most grain yield belonged to 120 kg pure nitrogen in hectare. Protein yield of dry forage had a significant increase with the increase of nitrogen application, but with a delay in forage harvest time, protein percentage decreased and its yield increased significantly. Obtained results of this experiment indicated that high amounts of nitrogen couldn’ t compensate the damage of delay in forage harvest time for seed production. The remobilization and current photosynthesis in both treatments of forage harvest decreased, as it was significant in forage harvest treatment in the middle of stem elongation. The increase of nitrogen fertilizer from 60 to 120 kg caused an increase of remobilization and current photosynthesis. According to measured compartments, it is said that nitrogen consumption with applying 120 kg pure nitrogen in hectare and forage harvest in the stage of stem initiation, had an appropriate preference for dual purpose planting (forage and seed) compared to other treatments.

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APA: Copy

MOJDAM, MANI. (2010). THE STUDY OF NITROGEN MANAGEMENT AND FORAGE HARVEST TIME ON FORAGE AND GRAIN YIELD AND REMOBILIZATION OF BARELY CULTIVAR JONOOB. CROP PHYSIOLOGY, 1(4), 85-97. SID. https://sid.ir/paper/174505/en

Vancouver: Copy

MOJDAM MANI. THE STUDY OF NITROGEN MANAGEMENT AND FORAGE HARVEST TIME ON FORAGE AND GRAIN YIELD AND REMOBILIZATION OF BARELY CULTIVAR JONOOB. CROP PHYSIOLOGY[Internet]. 2010;1(4):85-97. Available from: https://sid.ir/paper/174505/en

IEEE: Copy

MANI MOJDAM, “THE STUDY OF NITROGEN MANAGEMENT AND FORAGE HARVEST TIME ON FORAGE AND GRAIN YIELD AND REMOBILIZATION OF BARELY CULTIVAR JONOOB,” CROP PHYSIOLOGY, vol. 1, no. 4, pp. 85–97, 2010, [Online]. Available: https://sid.ir/paper/174505/en

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