A suitability assessment studies was carried out to assess the suitability of the toposequence along Ogoni, Andoni and Opobo unity road for the cultivation of coconut. Results obtained from the studies revealed sand fractions were high ranging from 81.6 – 84.6g/kg, followed by silt (11 – 17 g/kg) and clay (0.4 – 3.4) in that order. Soil reaction (pH) ranged from acidic to slightly acidic (5.62-6.53) with low organic carbon (0.1 - 0.99g/kg) and total nitrogen (0.009-0.005g/kg). The potassium contents were moderate; while exchangeable cations and available phosphorus were very low. The results also showed that pedon 1, 2 and 3 were moderately suitable (S2) for coconut cultivation but with limitation in fertility especially low organic carbon and soil physical characteristics in term of erosion hazard and flood. Therefore in optimizing and sustaining the soils for coconut production, appropriate management practices to remedy erosion and the poor drainage condition due to flood and fertility of the soils should be developed and applied to boost coconut production in the area. Planting of cover crops and application of organic residue should be considered especially in area due to the sandy texture of the soils for coconut cultivation. Furthermore, the study shows that coconut can be cultivated in the environment due to favouarable climatic and edaphic condition in the study area.
Boma et al. (Tue,) studied this question.
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