Phosphorus recovery from triple superphosphate by soyabean in the Guinea savanna of Nigeria

Abstract

Phosphorus fertilizer was applied at two rates to four soyabean varieties of different duration to maturity at four sites. The P rate had no significant (p > 0.05) interaction with site or variety. TGx1670-1F, one of the two late varieties, had the highest levels of total P (11 kg/ha) and apparent fertilizer P recovery (15%). Copyright © 2006 John Wiley & Sons, Ltd