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Abstract

Effect of goat and poultry manure application on selected soil properties and yield of garden egg (Solanum melongena) on acid sand of Akwa Ibom State of Nigeria.

Abstract

Field research was conducted at the University of Uyo Teaching and Research Farm in 2003 to determine the effect of goat and poultry manure application on selected soil Physico-Chemical properties, and yield of garden egg (Solanum melongena). The experiment was laid out in a Completely Randomized Design (CRD) with four replicates. Animal manure treatments were applied at 4 levels; Control [O t/ha], Goat Manure GM [lO t/ha], Poultry manure PM. [lO t/ha], and GM+ PM [5+5 t/ha] applied at 4 weeks after transplanting (WAT). Soil Samples were collected at 0-20 cm depth from treated plots at 1, and 3 months after transplanting [MAT] for laboratory analysis. Soil parameters analysed were; pH, organic matter, total Nitrogen, available Phosphorus, exchangeable Potassium, Calcium, Cation exchange capacity and base saturation percentage. Plant parameters sampled were; plant height urn, number of branches and leaves per plant, leaf area index (cm), and fruit yield (kg/ha). The result showed that poultry, goat manure and their combination [GM+PM] generally increased soil pH, with a range of 5.48-5.72 from initial pH of 4.24 in control plot. Poultry manure treatment alone, increased soil pH up to 5.87 representing 35.44 percent, and soil organic matter status by 6.66% representing 126.53 percent over control respectively. Application of goat manure alone increased soil total Nitrogen status by 0.24% representing 166.67 percent over control. Application of GM and PM alone improved base saturation percentage generally with PM giving a higher percent over control, application ot GM, PM alone and their combination significantly affected garden egg fruit yield.