PAPER TITLE :CLASSIFICATION AND EVALUATION OF SOILS FOR MAIZE CULTIVATION IN WESTERN PART AKOKO SOUTHWEST LOCAL GOVERNMENT AREA OF ONDO STATE, NIGERIA

APPLIED TROPICAL AGRICULTURE | VOLUME 19 NUMBER 1 2014

Paper Details

  • Author(s) : Adesemuyi E.A., B:S Ewulo * & Ojeniyi S.O
  • Abstract:

Soil varies both laterally and vertically over landscape and therefore requires proper inventory of its attributes for classification and optimal utilization.
In order to examine the attributes of soils in selected locations in western parts of Akoko Southwest Local Government Area of Ondo state and
evaluate its potential for maize cultivation, six pedons were established at Ose-Oba (Pedon 1), Ago-Ajayi (Pedon 2), Oyinmo (Pedon 3), Agbanimu
(Pedon 4), Araromi (Pedon 5) and Ago-Fulani (Pedon 6). Morphological descriptions of the pedons were carried out and horizons sampled for
chemical analysis. Pedons were characterize and classified according to USDA soil Taxonomy and FAO/UNESCO system of soil classification. The
suitability of the study area for maize cultivation was evaluated with non-parametric and parametric square-root methods. The results of morphological
and physical analyses revealed deep (100 - 160 cm) and well drained soils with increase in clay content with depth (argillic). Surface soil textures were
sandy loam underlain by sandy clay loam. Topsoil reaction varied from slightly acidic to neutral (pH: 6.43 - 7.09). Percentage organic carbon and total
nitrogen were low. The soil were acidic with low base saturation (<50% by NH4OAc), a requirement for classifying the soil in the order Ultisols
following USDA system of soil taxonomy. The appropriate correlation in FAO/UNESCO system of classification is Acrisol. All pedons were
kandic in nature with ustic moisture regime. Parametric evaluation showed that sites with Pedons 1, 5, and 6 are not currently suitable for maize
cultivation, Pedon 4 site is marginally suitable while sites with Pedons 2 and 3 are moderately suitable for agriculture. However, potentially, Pedons 5
and 6 are marginally suitable for agriculture. The soil requires varying level of fertility management practices targeted at alleviating its identified
constraint to maize productivity.