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Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia

Received: 19 March 2020     Accepted: 7 April 2020     Published: 29 April 2020
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Abstract

The lack of site specific fertilizer recommendation to replenish declining soil fertility has been the major challenge to boost crop production in Ethiopia. Therefore, an investigation was conducted on soil pH and Av. P status assessment and mapping at wuchale district. About One hundred sixty one (161) geo–referenced soil samples were collected by using grid survey method. For both soil parameter analysis standard laboratory analysis were followed. In order to predict values for not sampled locations the Ordinary Kriging interpolation was used by ArcGIS10.3 software. The pH of the soil samples ranged from 4.84 to 6.67 and about 98.13% of all agricultural soils were acidic in reaction. The district has three categories of soil pH but the majority of the area falls in moderately acidic, strongly acidic and neutral soil pH which account area share of 51.55%, 46.58% and 1.87% respectively. Available P ranged from 2 to 64.79 ppm. The available phosphorus level is categorized as low, medium and high which is 26.70%, 52.80% and 20.50% respectively. The dominating class is medium i.e. (5 to 15ppm). Appropriate rate of lime needs to be applied or cultivating acid tolerant crops is recommended for both strongly acidic and moderately acidic soils of the study district to obtain optimum crop yields. The areas which are low in available soil phosphorus level need to be improved by adding organic manures (FYM/Compost) and inorganic fertilizers to boost the agricultural productivity of the study areas.

Published in American Journal of Environmental Science and Engineering (Volume 4, Issue 1)
DOI 10.11648/j.ajese.20200401.11
Page(s) 1-6
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), 2020. Published by Science Publishing Group

Keywords

Soil pH, Available Phosphorus, Status and Kriging

References
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Cite This Article
  • APA Style

    Endale Bedada, Ajema Lemma, Wubalem Abera, Abera Donis, Dereje Girma. (2020). Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia. American Journal of Environmental Science and Engineering, 4(1), 1-6. https://doi.org/10.11648/j.ajese.20200401.11

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    ACS Style

    Endale Bedada; Ajema Lemma; Wubalem Abera; Abera Donis; Dereje Girma. Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia. Am. J. Environ. Sci. Eng. 2020, 4(1), 1-6. doi: 10.11648/j.ajese.20200401.11

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    AMA Style

    Endale Bedada, Ajema Lemma, Wubalem Abera, Abera Donis, Dereje Girma. Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia. Am J Environ Sci Eng. 2020;4(1):1-6. doi: 10.11648/j.ajese.20200401.11

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  • @article{10.11648/j.ajese.20200401.11,
      author = {Endale Bedada and Ajema Lemma and Wubalem Abera and Abera Donis and Dereje Girma},
      title = {Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia},
      journal = {American Journal of Environmental Science and Engineering},
      volume = {4},
      number = {1},
      pages = {1-6},
      doi = {10.11648/j.ajese.20200401.11},
      url = {https://doi.org/10.11648/j.ajese.20200401.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajese.20200401.11},
      abstract = {The lack of site specific fertilizer recommendation to replenish declining soil fertility has been the major challenge to boost crop production in Ethiopia. Therefore, an investigation was conducted on soil pH and Av. P status assessment and mapping at wuchale district. About One hundred sixty one (161) geo–referenced soil samples were collected by using grid survey method. For both soil parameter analysis standard laboratory analysis were followed. In order to predict values for not sampled locations the Ordinary Kriging interpolation was used by ArcGIS10.3 software. The pH of the soil samples ranged from 4.84 to 6.67 and about 98.13% of all agricultural soils were acidic in reaction. The district has three categories of soil pH but the majority of the area falls in moderately acidic, strongly acidic and neutral soil pH which account area share of 51.55%, 46.58% and 1.87% respectively. Available P ranged from 2 to 64.79 ppm. The available phosphorus level is categorized as low, medium and high which is 26.70%, 52.80% and 20.50% respectively. The dominating class is medium i.e. (5 to 15ppm). Appropriate rate of lime needs to be applied or cultivating acid tolerant crops is recommended for both strongly acidic and moderately acidic soils of the study district to obtain optimum crop yields. The areas which are low in available soil phosphorus level need to be improved by adding organic manures (FYM/Compost) and inorganic fertilizers to boost the agricultural productivity of the study areas.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia
    AU  - Endale Bedada
    AU  - Ajema Lemma
    AU  - Wubalem Abera
    AU  - Abera Donis
    AU  - Dereje Girma
    Y1  - 2020/04/29
    PY  - 2020
    N1  - https://doi.org/10.11648/j.ajese.20200401.11
    DO  - 10.11648/j.ajese.20200401.11
    T2  - American Journal of Environmental Science and Engineering
    JF  - American Journal of Environmental Science and Engineering
    JO  - American Journal of Environmental Science and Engineering
    SP  - 1
    EP  - 6
    PB  - Science Publishing Group
    SN  - 2578-7993
    UR  - https://doi.org/10.11648/j.ajese.20200401.11
    AB  - The lack of site specific fertilizer recommendation to replenish declining soil fertility has been the major challenge to boost crop production in Ethiopia. Therefore, an investigation was conducted on soil pH and Av. P status assessment and mapping at wuchale district. About One hundred sixty one (161) geo–referenced soil samples were collected by using grid survey method. For both soil parameter analysis standard laboratory analysis were followed. In order to predict values for not sampled locations the Ordinary Kriging interpolation was used by ArcGIS10.3 software. The pH of the soil samples ranged from 4.84 to 6.67 and about 98.13% of all agricultural soils were acidic in reaction. The district has three categories of soil pH but the majority of the area falls in moderately acidic, strongly acidic and neutral soil pH which account area share of 51.55%, 46.58% and 1.87% respectively. Available P ranged from 2 to 64.79 ppm. The available phosphorus level is categorized as low, medium and high which is 26.70%, 52.80% and 20.50% respectively. The dominating class is medium i.e. (5 to 15ppm). Appropriate rate of lime needs to be applied or cultivating acid tolerant crops is recommended for both strongly acidic and moderately acidic soils of the study district to obtain optimum crop yields. The areas which are low in available soil phosphorus level need to be improved by adding organic manures (FYM/Compost) and inorganic fertilizers to boost the agricultural productivity of the study areas.
    VL  - 4
    IS  - 1
    ER  - 

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Author Information
  • Fitche Agricultural Research Center, Fitche, Ethiopia

  • Fitche Agricultural Research Center, Fitche, Ethiopia

  • Fitche Agricultural Research Center, Fitche, Ethiopia

  • Fitche Agricultural Research Center, Fitche, Ethiopia

  • Fitche Agricultural Research Center, Fitche, Ethiopia

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