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Effect of Farmyard Manure and Inorganic Nitrogen Fertilizers Rates on the Yield and Yield Traits of Sweet Potato (Ipomoea batatas L.) at Assosa District

Received: 24 June 2022    Accepted: 23 July 2022    Published: 28 July 2022
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Abstract

Sweet potato is high yield potential and adaptability to a wide range of environmental conditions. However, due to low soil fertility the yield was become low in some part of country. The objective of this study was to evaluate the combined effects of organic farmyard manure and inorganic nitrogen on yield and yield components of sweet potato. Four farmyard manure rates (0, 4.5, 9 and 13.5 ton ha-1) and four nitrogen rates (0, 45, 90 and 135N kg ha-1) fertilizers were evaluated in RCBD with three replications at Assosa district. The interaction effects of farmyard manure with nitrogen fertilizers rates were not significantly (P > 0.05) influenced total root yield of sweet potato. The highest yield was recorded by the combination 13.5 ton farmyard manure per ha with that of 45 kg of nitrogen per ha. The combination of 13.5 ton ha-1 farmyard manure with 45kg nitrogen ha-1 fertilizers recorded more than minimum acceptable of marginal rate of return (393.39%). So, we conclude that applying 13.5 ton ha-1 farmyard manure with 45kg nitrogen ha-1 fertilizers benefits farmers or beneficiaries at Assosa district. In future the researchers would have to investigate the combination of farmyard manure with nitrogen rates for more than two years at Assosa area.

Published in International Journal of Ecotoxicology and Ecobiology (Volume 7, Issue 3)
DOI 10.11648/j.ijee.20220703.11
Page(s) 32-36
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), 2024. Published by Science Publishing Group

Keywords

Farmyard, Manure, Nitrogen, Rates, Sweet Potato

References
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  • APA Style

    Desta Bekele, Merga Boru. (2022). Effect of Farmyard Manure and Inorganic Nitrogen Fertilizers Rates on the Yield and Yield Traits of Sweet Potato (Ipomoea batatas L.) at Assosa District. International Journal of Ecotoxicology and Ecobiology, 7(3), 32-36. https://doi.org/10.11648/j.ijee.20220703.11

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    ACS Style

    Desta Bekele; Merga Boru. Effect of Farmyard Manure and Inorganic Nitrogen Fertilizers Rates on the Yield and Yield Traits of Sweet Potato (Ipomoea batatas L.) at Assosa District. Int. J. Ecotoxicol. Ecobiol. 2022, 7(3), 32-36. doi: 10.11648/j.ijee.20220703.11

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    AMA Style

    Desta Bekele, Merga Boru. Effect of Farmyard Manure and Inorganic Nitrogen Fertilizers Rates on the Yield and Yield Traits of Sweet Potato (Ipomoea batatas L.) at Assosa District. Int J Ecotoxicol Ecobiol. 2022;7(3):32-36. doi: 10.11648/j.ijee.20220703.11

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  • @article{10.11648/j.ijee.20220703.11,
      author = {Desta Bekele and Merga Boru},
      title = {Effect of Farmyard Manure and Inorganic Nitrogen Fertilizers Rates on the Yield and Yield Traits of Sweet Potato (Ipomoea batatas L.) at Assosa District},
      journal = {International Journal of Ecotoxicology and Ecobiology},
      volume = {7},
      number = {3},
      pages = {32-36},
      doi = {10.11648/j.ijee.20220703.11},
      url = {https://doi.org/10.11648/j.ijee.20220703.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijee.20220703.11},
      abstract = {Sweet potato is high yield potential and adaptability to a wide range of environmental conditions. However, due to low soil fertility the yield was become low in some part of country. The objective of this study was to evaluate the combined effects of organic farmyard manure and inorganic nitrogen on yield and yield components of sweet potato. Four farmyard manure rates (0, 4.5, 9 and 13.5 ton ha-1) and four nitrogen rates (0, 45, 90 and 135N kg ha-1) fertilizers were evaluated in RCBD with three replications at Assosa district. The interaction effects of farmyard manure with nitrogen fertilizers rates were not significantly (P > 0.05) influenced total root yield of sweet potato. The highest yield was recorded by the combination 13.5 ton farmyard manure per ha with that of 45 kg of nitrogen per ha. The combination of 13.5 ton ha-1 farmyard manure with 45kg nitrogen ha-1 fertilizers recorded more than minimum acceptable of marginal rate of return (393.39%). So, we conclude that applying 13.5 ton ha-1 farmyard manure with 45kg nitrogen ha-1 fertilizers benefits farmers or beneficiaries at Assosa district. In future the researchers would have to investigate the combination of farmyard manure with nitrogen rates for more than two years at Assosa area.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Effect of Farmyard Manure and Inorganic Nitrogen Fertilizers Rates on the Yield and Yield Traits of Sweet Potato (Ipomoea batatas L.) at Assosa District
    AU  - Desta Bekele
    AU  - Merga Boru
    Y1  - 2022/07/28
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    DO  - 10.11648/j.ijee.20220703.11
    T2  - International Journal of Ecotoxicology and Ecobiology
    JF  - International Journal of Ecotoxicology and Ecobiology
    JO  - International Journal of Ecotoxicology and Ecobiology
    SP  - 32
    EP  - 36
    PB  - Science Publishing Group
    SN  - 2575-1735
    UR  - https://doi.org/10.11648/j.ijee.20220703.11
    AB  - Sweet potato is high yield potential and adaptability to a wide range of environmental conditions. However, due to low soil fertility the yield was become low in some part of country. The objective of this study was to evaluate the combined effects of organic farmyard manure and inorganic nitrogen on yield and yield components of sweet potato. Four farmyard manure rates (0, 4.5, 9 and 13.5 ton ha-1) and four nitrogen rates (0, 45, 90 and 135N kg ha-1) fertilizers were evaluated in RCBD with three replications at Assosa district. The interaction effects of farmyard manure with nitrogen fertilizers rates were not significantly (P > 0.05) influenced total root yield of sweet potato. The highest yield was recorded by the combination 13.5 ton farmyard manure per ha with that of 45 kg of nitrogen per ha. The combination of 13.5 ton ha-1 farmyard manure with 45kg nitrogen ha-1 fertilizers recorded more than minimum acceptable of marginal rate of return (393.39%). So, we conclude that applying 13.5 ton ha-1 farmyard manure with 45kg nitrogen ha-1 fertilizers benefits farmers or beneficiaries at Assosa district. In future the researchers would have to investigate the combination of farmyard manure with nitrogen rates for more than two years at Assosa area.
    VL  - 7
    IS  - 3
    ER  - 

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Author Information
  • Assosa Agricultural Research Center, Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia

  • Assosa Agricultural Research Center, Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia

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