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The interest in organic materials as soil fertility restorer is increasing due to the high cost and unavailability at the right time of inorganic fertilizer and the problem associated with residue disposal by burning which can further aggravate global warming. The effects of different organic materials and NPK fertilizer on the performance of maize were examined in field experiments carried out at the Teaching and Research Farm of the Ambrose Alli University, Ekpoma in a forest savannadoaj:fffca8ddc8904fbfb931b13c95c9d279 fatcat:v3m5wjmu3bbenoteqave6apjee