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Nigerian Journal of Soil Science -- Vol. 15 (2005): Effects of organic manure on soil chemical properties and yield of ginger - research note | 27 USD |
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Nigerian Journal of Soil Science -- Vol. 15 (2005): Comparative effects of plant residues and NPK fertilizer on soil properties in a humid ultisol | 27 USD |
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Nigerian Journal of Soil Science -- Vol. 15 (2005): Assessment of heavy metal contamination of Robertkiri oil field's soil | 27 USD |
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| Total: 81 USD | |||
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