1. Ataga, D. O. and Omoti, U. October 1987.Fertilizer use on palms in Nigeria. Paper presented at the National Fertilizer Seminar sponsored by FPDD, October, 28–30. Nigeria: NAFCON, and Federal Superphosphate Company, Port Harcourt.
2. DETERMINATION OF TOTAL, ORGANIC, AND AVAILABLE FORMS OF PHOSPHORUS IN SOILS