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Research Article
Vol. 22, Issue 1
Effect of Npk and Poultry Manure on Cowpea and Soil Nutrient Composition
Field experiment was conducted at University of Agriculture, Makurdi in the Southern Guinea Savanna ecology of Nigeria to test effect of NPK fertilizer and Poultry manure on performance of cowpea and soil nutrient composition. The study conducted in 2008 and 2009 had a control, NPK 20 – 10 – 10 (48 kgha-1) and poultry manure (PM) with or without NP...