Phosphorus sorption capacity of low activity clay soils of South Western Nigeria and its usefulness in evaluating P requirement of rice M. T. Adetunji OriginalPaper Pages: 181 - 188
Organic residue management, soil nutrient changes and maize yield in a humid Ultisol M. T. Adetunji OriginalPaper Pages: 189 - 195
Nitrogen losses and fertilizer N use efficiency in irrigated porous soils Milkha S. AulakhBijay-Singh OriginalPaper Pages: 197 - 212
Towards a practical approach to fertilizer recommendations for food crop production in smallholder farms in Kenya H. F. SchnierH. ReckeA. W. Muriuki OriginalPaper Pages: 213 - 226
The bioconversion of tunisian phosphorite usingAspergillus niger D. BojinovaR. VelkovaSt. Zhelev OriginalPaper Pages: 227 - 232
Potassium availability with application of sewage sludge, and sludge and manure composts in field experiments Guang WenJulien P. WinterThomas E. Bates OriginalPaper Pages: 233 - 241
The value of poultry manure for wetland rice grown in rotation with wheat Bijay-SinghYadvinder-SinghO. P. Meelu OriginalPaper Pages: 243 - 250
Differential availability of partially sulphuric and phosphoric acidulated phosphate rocks I. Plant response A. GhaniS. S. S. Rajan OriginalPaper Pages: 251 - 259
Balanced pasture fertilization in the Basque Country: I. Phosphorus and potassium budgets on dairy farms M. OyanarteG. BesgaA. G. Sinclair OriginalPaper Pages: 261 - 269
The effect of nitrogen source and crop rotation on the growth and yield of processing tomatoes J. CaveroR. E. PlantD. B. Friedman OriginalPaper Pages: 271 - 282