Abstract
A trial was conducted on sandy clay, slightly acidic, low organic carbon (C) and available phosphorus (P) soil to evaluate the effect of ashed cocoa pod husk (ACPH) and urea fertilizer on the growth and dry matter yield of coffee under greenhouse condition at Cocoa Research Institute of Nigeria (CRIN), Ibadan in 2011. The treatments consist of ACPH applied at 5, 10, 15 and 20 Kg N ha-1, urea (10 Kg N ha-1 ) and control. The ACPH significantly (p< 0.05) enhanced coffee seedling growth parameters relative to control, while urea reduced the growth of coffee seedlings. Application of ACPH at all levels increased the soil pH, N, P, K, Ca, Mg and C significantly (p< 0.05) compared to control. It is concluded that the growth and dry matter yield of coffee seedlings could be enhanced by the use of ashed cocoa pod husk at 15 kg N ha-1.
Keywords:
ashed cocoa pod husk
organic carbon
soil fertility
urea
coffee
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