Volume 4, Issue 1, March 2020, Page: 1-6
Assessment and Mapping of Soil pH and Available Phosphorus Status in Wuchale District, North Shewa Zone, Oromia
Endale Bedada, Fitche Agricultural Research Center, Fitche, Ethiopia
Ajema Lemma, Fitche Agricultural Research Center, Fitche, Ethiopia
Wubalem Abera, Fitche Agricultural Research Center, Fitche, Ethiopia
Abera Donis, Fitche Agricultural Research Center, Fitche, Ethiopia
Dereje Girma, Fitche Agricultural Research Center, Fitche, Ethiopia
Received: Mar. 19, 2020;       Accepted: Apr. 7, 2020;       Published: Apr. 29, 2020
DOI: 10.11648/j.ajese.20200401.11      View  46      Downloads  28
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.
Keywords
Soil pH, Available Phosphorus, Status and Kriging
To cite this article
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, American Journal of Environmental Science and Engineering. Vol. 4, No. 1, 2020, pp. 1-6. doi: 10.11648/j.ajese.20200401.11
Copyright
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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