CHARACTERIZATION OF SOILS OF EDO STATE OF NIGERIA FOR THE COMPUTATION OF PHOSPHORUS FERTILIZER FACTOR

Article Id: ARCC3115 | Page : 78-84
Citation :- CHARACTERIZATION OF SOILS OF EDO STATE OF NIGERIA FOR THE COMPUTATION OF PHOSPHORUS FERTILIZER FACTOR.Indian Journal Of Agricultural Research.2000.(34):78-84
1.0. Osemwota, A.1. Ogboghodo. G.O. Okpefa and K.E. Njukwe
Address : Department of Soil Science, Edo State University, Ekpoma-Nigeria

Abstract

A sorption study was conducted on soils of Edo State of Nigeria to work out phosphorus fertilizer required for raising the soil test value or P status. Eleven surface soil samples (0-15cm) differing in soli physico-chemical properties were used for study. Composite surface soil collected from each site was, treated with ten levels of P and incubated for forty two-day period. Analysis for P using Bray PI, showed that the quantity of applied P (kg/ha) required to raise the soil test value by a unit amount (mg/L), i.e. the P fertilizer factor varied from 1.28 to 2.50 with a mean of 1.76. The level of P sorption was influenced by free Fe2O3.

Keywords

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