Effect of nitrogen supplying sources on nitrogen use efficiency in rice (Oryza sativa L. cv. Shiroudi)

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MOHAMMADIAN M.; Astaraie A.; LAKZIAN A.; EMAMI H.; KAVOUSI M.

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Journal: Iranian Journal of Crop Sciences Year:2019 | Volume:21 | Issue:1 Page(s): 82-95

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Title

Effect of nitrogen supplying sources on nitrogen use efficiency in rice (Oryza sativa L. cv. Shiroudi)

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Keywords

Deep PlacementQ1

Free-living Nitrogen Fixing BacteriaQ2

Nitrogen Use Efficiency and RiceQ1

Abstract

The use of nitrogen fertilizer has a key role in enhancing agricultural productivity worldwide. In order to achieve an effective approach to enhance nitrogen use efficiency in rice, a field experiment was conducted in a randomized complete block design with three replications and 13 treatments on Shiroudi, a high yielding rice cultivar in Rice Research Institute of Iran (Amol) in 2015 and 2016. Treatments were included: N0: Without N fertilizer (Control), N1: split application of 115 kg. ha-1, (N2, N3), (N4, N5) and (N6, N7) application of 115 and 57. 5 kg. ha-1 N from Sulfur Coated Urea (SCU), Urea Super Granule (USG) and Ammonium Sulfate (AS) sources, respectively. Nitrogen nanofertilizer+ 50% of recommended N fertilizer (N8), application of Azospirillium, Azotobacter and Azospirillium + Azotobacter (N9, N10 and N11), farmers nitrogen fertilizer practice (115 kg. ha-1 from source of urea) (N12). Results showed that the effect of nitrogen fertilizer treatments on grain yield, dry matter, harvest index, grain and straw N content, total N uptake, N harvest index and all N use efficiency indices were significant. The highest grain yield (7869 kg. ha-1) was obtained from N6 (115 kg. ha-1 N from source of ammonium solfate). The highest rates of PFP (136. 2 kg. kg1), AEN (38. 1 kg. kg-1), REN (90. 8 %), PEN (42 kg. kg-1) and IEN (54. 2 kg. kg-1) were obtained from N5 (USG) treatment. Based on the results of this experiment, Deep Placement of USG fertilizer due to higher N uptake may led to reduce N losses and has relative advantage campared to other N fertilizer sources in rice production.

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APA: Copy

MOHAMMADIAN, M., Astaraie, A., LAKZIAN, A., EMAMI, H., & KAVOUSI, M.. (2019). Effect of nitrogen supplying sources on nitrogen use efficiency in rice (Oryza sativa L. cv. Shiroudi). IRANIAN JOURNAL OF CROP SCIENCES, 21(1 ), 82-95. SID. https://sid.ir/paper/385333/en

Vancouver: Copy

MOHAMMADIAN M., Astaraie A., LAKZIAN A., EMAMI H., KAVOUSI M.. Effect of nitrogen supplying sources on nitrogen use efficiency in rice (Oryza sativa L. cv. Shiroudi). IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2019;21(1 ):82-95. Available from: https://sid.ir/paper/385333/en

IEEE: Copy

M. MOHAMMADIAN, A. Astaraie, A. LAKZIAN, H. EMAMI, and M. KAVOUSI, “Effect of nitrogen supplying sources on nitrogen use efficiency in rice (Oryza sativa L. cv. Shiroudi),” IRANIAN JOURNAL OF CROP SCIENCES, vol. 21, no. 1 , pp. 82–95, 2019, [Online]. Available: https://sid.ir/paper/385333/en

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