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International Journal of Soil Science
Year: 2007  |  Volume: 2  |  Issue: 1  |  Page No.: 78 - 81

Influence of Sawdust Ash on Soil Chemical Properties and Cowpea Performance in Southwest Nigeria

M.A. Awodun    

Abstract: Field trials were carried out at two locations in fairly acidic soils in Southwest Nigeria to test effect of sawdust ash on soil chemical properties, leaf nutrient content and yield of cowpea (Vigna unguiculata Walps). Sawdust ash applied at 2, 4, 6, 8 and 10 t ha-1 significantly increased soil organic matter, pH, N, P, K, Ca and Mg contents relative to 0 t ha-1 sawdust ash. The 4, 6, 8 and 10 t ha-1 sawdust ash increased pod weight and grain yield. The mean increases in grain yield across locations were 17, 63 and 68%, respectively.

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