Spatial Variability of Soil Physical and Chemical Properties in Akure, South Western, Nigeria
Keywords:
soil property, GP S, sampling point, productivity potential
Abstract
The determination of the spatial variability of soil physical and chemical properties enables essential requirement for crop growth and development. The objectives of the study therefore were to determine the soil physical and chemical properties and characterize the spatial variability of soil physical and chemical properties across the study area. The physical and chemical properties determined were bulk density, particle density, Soil Hydraulic Conductivity (SHC),Water Holding Capacity (WHC) and soil pH, Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), Cation Exchange Capacity (CEC), Soil Organic Matter (SOM) respectively. The study was conducted at the Agricultural Engineering Research Farm land, the Federal University of Technology, Akure (FUTA). Soil samples were collected from three sampling depths between 0-60cm at an interval of 20cm at different 20 points across the field while coordinates of the soil sampling points were determined using Global Positioning System (GPS) procedures. Results showed that the average textural class was sandy clay loamwhile in physical properties: bulk density, particle density, SHC, WHC were 1.47 g/cm 3 , 2.23 g/cm 3 , 0.027cm/hr, 41.78 % respectively and chemical properties showed that the soil pH, N, P, K, Ca, Mg, CEC, SOM were 6.43, 0.10%, 1.60 mg/kg, 0.26 cmol/kg, 2.66 cmol/kg, 1.59 cmol/kg, 13.31cmol/kg, 1.69% respectively. It showed that the spatial variability of major soil parameters have influence on the spatial distribution of crop productivity potential. Therefore, the soil physical and chemical properties should be determined after every round of crop production on the field to determine the change in the soil properties.
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Published
2017-03-15
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