TY - JOUR T1 - Response of three soils in the derived savanna zone of southwestern Nigeria to combined application of organic and inorganic fertilizer as affecting phosphorus fractions JO - Eurasian Journal of Soil Science VL - 7 IS - 2 SP , EP - 187 - 194 KW - Poultry manure, single superphosphate, phosphorus fractions, derived savanna soils. SN - 2147-4249 DO - 10.18393/ejss.393289 PY - 2018 PB - Federation of Eurasian Soil Science Societies ER -