Characterization and suitability evaluation of rubber growing soils of Nigeria
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TextPublication details: Indian Journal of Natural Rubber Research 1996Description: 93-99Subject(s): Summary: Morphological, physical and chemical characteristics of the rubber growing soils of south western and south-eastern Nigeria were studied. The terrain is ;flat to gently sloping. The soils are well drained, deep and generally sandy with clay content ranging from 1.2 to 35 per cent, of low fertility and very acid (pH 4.2) to moderately acid (pH 5.5). Effective cation exchange capacity ranged between 1.56 and 8.93 cmol per kg soil. The organic carbon, total N and available P ranged from 1.1 to 42.7, 0.04 to 2.8 g per kg and 2.4 to 24.2 mew g per g respectively. Soil structure varied from granular on the surface to weak moderate angular blocky and subangular blocky in the subsoils with friable to slightly sticky consistency. The soils were found to be generally suitable for rubber (Hevea brasiliensis) growth with only slight limitations of fertility and low clay content in most areas and a threatening erosion around Calabar. The suitability of soils from different areas was in the order: Okhuo and Benin > Akwete> Odagwa > Calabar.
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Journals
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RRII Library Soils and agonomy | Volume 9, Issue 2 | Journals |
Morphological, physical and chemical characteristics of the rubber growing soils of south western and south-eastern Nigeria were studied. The terrain is ;flat to gently sloping. The soils are well drained, deep and generally sandy with clay content ranging from 1.2 to 35 per cent, of low fertility and very acid (pH 4.2) to moderately acid (pH 5.5). Effective cation exchange capacity ranged between 1.56 and 8.93 cmol per kg soil. The organic carbon, total N and available P ranged from 1.1 to 42.7, 0.04 to 2.8 g per kg and 2.4 to 24.2 mew g per g respectively. Soil structure varied from granular on the surface to weak moderate angular blocky and subangular blocky in the subsoils with friable to slightly sticky consistency. The soils were found to be generally suitable for rubber (Hevea brasiliensis) growth with only slight limitations of fertility and low clay content in most areas and a threatening erosion around Calabar. The suitability of soils from different areas was in the order: Okhuo and Benin > Akwete> Odagwa > Calabar.
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