present study showed that accessible phosphorus was significantly (P<0.05) varied between land use types. According to Landon [26], the level of accessible phosphorus on the soils of natural forest and grazing land can be illustrated as a medium whereas the other two land uses were less than 5 mg/kg and hence described as low. Another study showed that most of the soils of the highlands of Ethiopia are deficient in their inherent available phosphorus due to acidic nature of the soil [29]. Furthermore, the correlation Coefficient showed that available phosphorus was correlated (r=0.89; p<0.01) with pH (H2O) but (r=-0.42) to acid saturation. In similar way, obtainable potassium was significantly varied (p<0.01) among land use types. The occurrence of high rates of accessible K in the natural forest (120 mg/ kg) could be attributed to the highest value of CEC of the sampled soilswhich indicate their greater storage capacity and supplying power of potassium Table 2.
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