Soil Fertility Assessment and Mapping at Adami Tulu Jidoo Kombolcha District, East Shewa Zone, Oromia Region, Ethiopia

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Research areas:
Year:
2020
Type of Publication:
Article
Keywords:
Arc GIS, Soil Fertility Assessment, Soil Fertility Assessment Map
Authors:
Reta Worku; Taddesse Hunduma
Journal:
IJRIES
Volume:
7
Number:
3
Pages:
39-49
Month:
May
ISSN:
2394-1375
BibTex:
Abstract:
Information on soil fertility assessment and mapping of arable land helps to design appropriate Soil fertility management practices. The study was conducted during 2014/2015 at Adami tuluu jidoo kombolcha District to assess and map soil fertility status of the district for selected soil fertility parameters (N, P, K, Mg, OM, CEC and PH). Accordingly, based on the soil forming factors such as; parent material, climate, topography and geomorphology Adami tuluu jidoo kombolcha District was divided into land units. Then, a total of 136 composite soil samples were collected and analyzed at Batu soil Research Center. Finally, based on laboratory soil analysis result and GPS points, ArcGIS10.3 Software through Ordinary Kriging was used to predict values for un-sampled locations and mapped for whole district. From the study done the Geostatistical analysis revealed that available Phosphorus, Organic matter, total nitrogen, exchangeable magnesium and Cation exchange capacity were classified into low, medium, high and dominated by medium class with an area coverage of 72.71% 78.77%,77.85% 84.41% and 51.89% respectively. However, exchangeable sodium was classified only into very low, low medium, high and dominated by medium class with an area coverage of 46.98%. Soil pH was classified into neutral, slightly acidic, slightly alkaline to strongly alkaline.