INFLUENCE OF SUPPLEMENTAL FOLIAR APPLICATION OF NITROGEN AND POTASSIUM ON THE GRAIN YIELD, CONCENTRATION AND EFFICIENCY OF NITROGEN IN RICE (ORYZA SATIVA L.)

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ASADI S.; ZAVAREH M.; SHOKRI H.; SHAHIN ROKHSAR P.

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Journal: Applied Agricultural Research Year:2015 | Volume:- | Issue:108 Page(s): 127-136

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Title

INFLUENCE OF SUPPLEMENTAL FOLIAR APPLICATION OF NITROGEN AND POTASSIUM ON THE GRAIN YIELD, CONCENTRATION AND EFFICIENCY OF NITROGEN IN RICE (ORYZA SATIVA L.)

Author(s)

ASADI S. | ZAVAREH M. | SHOKRI H. | SHAHIN ROKHSAR P. | Issue Writer Certificate

Keywords

RICEQ2

FOLIAR APPLICATIONQ2

NITROGEN EFFICIENCYQ2

PROTEIN YIELDQ2

Abstract

A randomized complete block design with three replications was performed in RICE Research Institute of Iran, Rasht in 2008, to find the effect of supplement FOLIAR APPLICATION of nitrogen and potassium on Bahar-1 hybrid RICE’s grain yield, concentration and efficiency of nitrogen. FOLIAR APPLICATION of 20 kg nitrogen (5 % N) and 15 kg potassium (3 % K2O) in different pre-anthesis stages (maximum tillering, booting, and both stages) was considered as treatments. FOLIAR APPLICATION of distilled water was considered as control. Results revealed that the grain yield and grain PROTEIN YIELD were increased in treatments which nitrogen and potassium was applied in pre-anthesis stages compared to control treatment. Foliar fertilization in booting stage resulted to the highest amount of grain and straw nitrogen. No significant effect of foliar fertilization was seen on potassium amount of grains.Foliar nitrogen application had no significant effect on agronomic and physiological efficiency and apparent recovery of nitrogen.However, nitrogen uptake efficiency increased by 14.8 % compared to control treatment in maximum tillering stage. The highest amount of grain protein (11.6 %) was related to FOLIAR APPLICATION of nitrogen in both maximum tillering and booting stages compared to control. Overall, it could be concluded that maximum tillering and booting stages are the best pre-anthesis time for FOLIAR APPLICATION of nitrogen and potassium on cv. Bahar-1 hybrid RICE.

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APA: Copy

ASADI, S., ZAVAREH, M., SHOKRI, H., & SHAHIN ROKHSAR, P.. (2015). INFLUENCE OF SUPPLEMENTAL FOLIAR APPLICATION OF NITROGEN AND POTASSIUM ON THE GRAIN YIELD, CONCENTRATION AND EFFICIENCY OF NITROGEN IN RICE (ORYZA SATIVA L.). APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI), -(108), 127-136. SID. https://sid.ir/paper/214741/en

Vancouver: Copy

ASADI S., ZAVAREH M., SHOKRI H., SHAHIN ROKHSAR P.. INFLUENCE OF SUPPLEMENTAL FOLIAR APPLICATION OF NITROGEN AND POTASSIUM ON THE GRAIN YIELD, CONCENTRATION AND EFFICIENCY OF NITROGEN IN RICE (ORYZA SATIVA L.). APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI)[Internet]. 2015;-(108):127-136. Available from: https://sid.ir/paper/214741/en

IEEE: Copy

S. ASADI, M. ZAVAREH, H. SHOKRI, and P. SHAHIN ROKHSAR, “INFLUENCE OF SUPPLEMENTAL FOLIAR APPLICATION OF NITROGEN AND POTASSIUM ON THE GRAIN YIELD, CONCENTRATION AND EFFICIENCY OF NITROGEN IN RICE (ORYZA SATIVA L.),” APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI), vol. -, no. 108, pp. 127–136, 2015, [Online]. Available: https://sid.ir/paper/214741/en

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