Effects of NPK, Bio-Fertilizers and Manures on Growth of Maize (Zea mays L.) and Soil Nutrients Content in Maiduguri, Nigeria

A pot experiment was carried out at screen house, Faculty of Agriculture University Maiduguri to compare the effect NPK, bio-fertilizers and manures applications on growth nutrient uptake by maize. The consisted 9 treatments combined application NPK half full recommended rates for maize, Azotobacter chroococcum, Bacillus megaterium Pseudomonas fluorescence biofertilizers cow dung poultry replicated three times in a Completely Randomized Design (CRD). Result treatment having dose manure recorded highest plant height 3, 6 weeks after planting (95.19 cm, 148.63 149.63 respectively) total shoot root fresh dry weights (74.40 g, 196.93 28.83 46.93 g/plant, respectively). Higher nitrogen, phosphorus potassium contents soil (2.76 g/kg N 0.13 mg/kg P2O5 1.41 Cmol/kg K2Osoil) were also with above treatments.