Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (<i>Curcuma longa</i> L.) at Tepi, Southwestern Ethiopia

Behailu Mekonnen; Weyessa Garedew

doi:doi:10.11648/j.ajaf.20190704.11

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Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia

Behailu Mekonnen, Weyessa Garedew

Published in American Journal of Agriculture and Forestry (Volume 7, Issue 4)

Received: 6 May 2019 Accepted: 24 June 2019 Published: 4 July 2019

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Abstract

Turmeric is one of the most widely grown spice crop in southwestern part of Ethiopia. However, the yield and quality of this crop is low due to many factors. In 2016/2017 main cropping season, an experiment was conducted to determine the effects of nitrogen rate and time of application on yield and quality of turmeric at Tepi. The study consists of five nitrogen rates (0, 46, 69, 92, 115 kg ha^-1) and five split applications time (full dose at emergence, half at emergence + half at lag growth stage, 1/3^rd at emergence + 1/3^rd at lag growth stage + 1/3^rd at tillering stage, 1/4^th at emergence + 1/4^th at lag growth stage + 1/4^th at tillering stage + 1/4^th at slow growth stage, and 1/5^th at emergence + 1/5^th at lag growth stage + 1/5^th at tillering stage + 1/5^th at slow growth stage + 1/5^th at maturity stage ). A split plot design with three replications was used by assigning nitrogen rate as main plot factor while time of application as sub-plot factor. The result revealed that mother and finger rhizome number, mother and finger rhizome weight, fresh rhizome yield and oleoresin content were significantly affected by the interaction effects of nitrogen rate and time of application. The highest value for the variables measured was recorded at three equal split application of 115 kg N ha^-1 (1/3^rd at emergence + 1/3^rd at lag growth stage + 1/3^rd at tillering stage). Three times split application of nitrogen produced more yield and better quality as compared to the two times of application in turmeric; the most commonly known time of nitrogen application in many crops. Therefore, turmeric producer in southwestern Ethiopia should apply 115 kg N ha^-1 nitrogen in three times split application to maximize their turmeric yield and quality.

Published in	American Journal of Agriculture and Forestry (Volume 7, Issue 4)
DOI	10.11648/j.ajaf.20190704.11
Page(s)	126-132
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Oleoresin Content, Rhizome Yield, Split Application, Nitrogen Rate

References

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Behailu Mekonnen, Weyessa Garedew. (2019). Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. American Journal of Agriculture and Forestry, 7(4), 126-132. https://doi.org/10.11648/j.ajaf.20190704.11

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ACS Style

Behailu Mekonnen; Weyessa Garedew. Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. Am. J. Agric. For. 2019, 7(4), 126-132. doi: 10.11648/j.ajaf.20190704.11

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AMA Style

Behailu Mekonnen, Weyessa Garedew. Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. Am J Agric For. 2019;7(4):126-132. doi: 10.11648/j.ajaf.20190704.11

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@article{10.11648/j.ajaf.20190704.11,
  author = {Behailu Mekonnen and Weyessa Garedew},
  title = {Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia},
  journal = {American Journal of Agriculture and Forestry},
  volume = {7},
  number = {4},
  pages = {126-132},
  doi = {10.11648/j.ajaf.20190704.11},
  url = {https://doi.org/10.11648/j.ajaf.20190704.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaf.20190704.11},
  abstract = {Turmeric is one of the most widely grown spice crop in southwestern part of Ethiopia. However, the yield and quality of this crop is low due to many factors. In 2016/2017 main cropping season, an experiment was conducted to determine the effects of nitrogen rate and time of application on yield and quality of turmeric at Tepi. The study consists of five nitrogen rates (0, 46, 69, 92, 115 kg ha-1) and five split applications time (full dose at emergence, half at emergence + half at lag growth stage, 1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage, 1/4th at emergence + 1/4th at lag growth stage + 1/4th at tillering stage + 1/4th at slow growth stage, and 1/5th at emergence + 1/5th at lag growth stage + 1/5th at tillering stage + 1/5th at slow growth stage + 1/5th at maturity stage ). A split plot design with three replications was used by assigning nitrogen rate as main plot factor while time of application as sub-plot factor. The result revealed that mother and finger rhizome number, mother and finger rhizome weight, fresh rhizome yield and oleoresin content were significantly affected by the interaction effects of nitrogen rate and time of application. The highest value for the variables measured was recorded at three equal split application of 115 kg N ha-1 (1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage). Three times split application of nitrogen produced more yield and better quality as compared to the two times of application in turmeric; the most commonly known time of nitrogen application in many crops. Therefore, turmeric producer in southwestern Ethiopia should apply 115 kg N ha-1 nitrogen in three times split application to maximize their turmeric yield and quality.},
 year = {2019}
}

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TY  - JOUR
T1  - Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia
AU  - Behailu Mekonnen
AU  - Weyessa Garedew
Y1  - 2019/07/04
PY  - 2019
N1  - https://doi.org/10.11648/j.ajaf.20190704.11
DO  - 10.11648/j.ajaf.20190704.11
T2  - American Journal of Agriculture and Forestry
JF  - American Journal of Agriculture and Forestry
JO  - American Journal of Agriculture and Forestry
SP  - 126
EP  - 132
PB  - Science Publishing Group
SN  - 2330-8591
UR  - https://doi.org/10.11648/j.ajaf.20190704.11
AB  - Turmeric is one of the most widely grown spice crop in southwestern part of Ethiopia. However, the yield and quality of this crop is low due to many factors. In 2016/2017 main cropping season, an experiment was conducted to determine the effects of nitrogen rate and time of application on yield and quality of turmeric at Tepi. The study consists of five nitrogen rates (0, 46, 69, 92, 115 kg ha-1) and five split applications time (full dose at emergence, half at emergence + half at lag growth stage, 1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage, 1/4th at emergence + 1/4th at lag growth stage + 1/4th at tillering stage + 1/4th at slow growth stage, and 1/5th at emergence + 1/5th at lag growth stage + 1/5th at tillering stage + 1/5th at slow growth stage + 1/5th at maturity stage ). A split plot design with three replications was used by assigning nitrogen rate as main plot factor while time of application as sub-plot factor. The result revealed that mother and finger rhizome number, mother and finger rhizome weight, fresh rhizome yield and oleoresin content were significantly affected by the interaction effects of nitrogen rate and time of application. The highest value for the variables measured was recorded at three equal split application of 115 kg N ha-1 (1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage). Three times split application of nitrogen produced more yield and better quality as compared to the two times of application in turmeric; the most commonly known time of nitrogen application in many crops. Therefore, turmeric producer in southwestern Ethiopia should apply 115 kg N ha-1 nitrogen in three times split application to maximize their turmeric yield and quality.
VL  - 7
IS  - 4
ER  -

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Author Information

Behailu Mekonnen

Tepi National Spices Research Center, Tepi, Ethiopia
Weyessa Garedew

Jimma University College of Agriculture and Veterinary Medicine, Jimma, Ethiopia

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Behailu Mekonnen, Weyessa Garedew. (2019). Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. American Journal of Agriculture and Forestry, 7(4), 126-132. https://doi.org/10.11648/j.ajaf.20190704.11

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ACS Style

Behailu Mekonnen; Weyessa Garedew. Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. Am. J. Agric. For. 2019, 7(4), 126-132. doi: 10.11648/j.ajaf.20190704.11

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AMA Style

Behailu Mekonnen, Weyessa Garedew. Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. Am J Agric For. 2019;7(4):126-132. doi: 10.11648/j.ajaf.20190704.11

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@article{10.11648/j.ajaf.20190704.11,
  author = {Behailu Mekonnen and Weyessa Garedew},
  title = {Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia},
  journal = {American Journal of Agriculture and Forestry},
  volume = {7},
  number = {4},
  pages = {126-132},
  doi = {10.11648/j.ajaf.20190704.11},
  url = {https://doi.org/10.11648/j.ajaf.20190704.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaf.20190704.11},
  abstract = {Turmeric is one of the most widely grown spice crop in southwestern part of Ethiopia. However, the yield and quality of this crop is low due to many factors. In 2016/2017 main cropping season, an experiment was conducted to determine the effects of nitrogen rate and time of application on yield and quality of turmeric at Tepi. The study consists of five nitrogen rates (0, 46, 69, 92, 115 kg ha-1) and five split applications time (full dose at emergence, half at emergence + half at lag growth stage, 1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage, 1/4th at emergence + 1/4th at lag growth stage + 1/4th at tillering stage + 1/4th at slow growth stage, and 1/5th at emergence + 1/5th at lag growth stage + 1/5th at tillering stage + 1/5th at slow growth stage + 1/5th at maturity stage ). A split plot design with three replications was used by assigning nitrogen rate as main plot factor while time of application as sub-plot factor. The result revealed that mother and finger rhizome number, mother and finger rhizome weight, fresh rhizome yield and oleoresin content were significantly affected by the interaction effects of nitrogen rate and time of application. The highest value for the variables measured was recorded at three equal split application of 115 kg N ha-1 (1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage). Three times split application of nitrogen produced more yield and better quality as compared to the two times of application in turmeric; the most commonly known time of nitrogen application in many crops. Therefore, turmeric producer in southwestern Ethiopia should apply 115 kg N ha-1 nitrogen in three times split application to maximize their turmeric yield and quality.},
 year = {2019}
}

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TY  - JOUR
T1  - Nitrogen Fertilizer Rate and Time of Application Affected Yield and Quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia
AU  - Behailu Mekonnen
AU  - Weyessa Garedew
Y1  - 2019/07/04
PY  - 2019
N1  - https://doi.org/10.11648/j.ajaf.20190704.11
DO  - 10.11648/j.ajaf.20190704.11
T2  - American Journal of Agriculture and Forestry
JF  - American Journal of Agriculture and Forestry
JO  - American Journal of Agriculture and Forestry
SP  - 126
EP  - 132
PB  - Science Publishing Group
SN  - 2330-8591
UR  - https://doi.org/10.11648/j.ajaf.20190704.11
AB  - Turmeric is one of the most widely grown spice crop in southwestern part of Ethiopia. However, the yield and quality of this crop is low due to many factors. In 2016/2017 main cropping season, an experiment was conducted to determine the effects of nitrogen rate and time of application on yield and quality of turmeric at Tepi. The study consists of five nitrogen rates (0, 46, 69, 92, 115 kg ha-1) and five split applications time (full dose at emergence, half at emergence + half at lag growth stage, 1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage, 1/4th at emergence + 1/4th at lag growth stage + 1/4th at tillering stage + 1/4th at slow growth stage, and 1/5th at emergence + 1/5th at lag growth stage + 1/5th at tillering stage + 1/5th at slow growth stage + 1/5th at maturity stage ). A split plot design with three replications was used by assigning nitrogen rate as main plot factor while time of application as sub-plot factor. The result revealed that mother and finger rhizome number, mother and finger rhizome weight, fresh rhizome yield and oleoresin content were significantly affected by the interaction effects of nitrogen rate and time of application. The highest value for the variables measured was recorded at three equal split application of 115 kg N ha-1 (1/3rd at emergence + 1/3rd at lag growth stage + 1/3rd at tillering stage). Three times split application of nitrogen produced more yield and better quality as compared to the two times of application in turmeric; the most commonly known time of nitrogen application in many crops. Therefore, turmeric producer in southwestern Ethiopia should apply 115 kg N ha-1 nitrogen in three times split application to maximize their turmeric yield and quality.
VL  - 7
IS  - 4
ER  -

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