The effect of controlled-release fertilizer ‘Osmocote’ on growth, yield and composition of onion plants E. B. AmansJ. H. G. Slangen OriginalPaper Pages: 79 - 84
Ammonia volatilization from urea and ammoniacal fertilizers surface applied to winter wheat and grassland S. G. SommerC. Jensen OriginalPaper Pages: 85 - 92
Crop nitrogen utilization and soil nitrate loss in a lettuce field L. E. JacksonL. J. StiversK. K. Tanji OriginalPaper Pages: 93 - 105
Response of ensete (Ensete ventricosum W.) to mineral fertilizers in southwest Ethiopia Y. UloroK. Mengel OriginalPaper Pages: 107 - 113
Comparison of the Pi, Colwell, Bray 1, calcium acetate lactate (CAL) and Truog soil phosphorus test for predicting growth of oats, barley, triticale and clover in the field in lateritic soils fertilised with superphosphate and rock phosphate Vijay KumarM. D. A. BollandR. J. Gilkes OriginalPaper Pages: 115 - 124
A comparison of five soil phosphorus tests for five crop species for soil previously fertilized with superphosphate and rock phosphate M. D. A. BollandVijay KumarR. J. Gilkes OriginalPaper Pages: 125 - 132
Identification of residual P compounds in fertilized soils using density fractionation, X-ray diffraction, scanning and transmission electron microscopy Vijay KumarR. J. GilkesM. D. A. Bolland OriginalPaper Pages: 133 - 149
Chemical characterization and agronomic effectiveness of phosphorus applied as a polyphosphate-chitosan complex E. FrossardP. TekelyJ. L. Morel OriginalPaper Pages: 151 - 158
Nitrogen application and underground water contamination in some agricultural soils of South Western Nigeria M. T. Adetunji OriginalPaper Pages: 159 - 163
