Sucrose fatty acid esters enhance efficiency of foliar-applied urea-nitrogen to soybeans M. IkedaW. K. ChoiY. Yamada OriginalPaper Pages: 127 - 131
Effects of N fertilizer application timing on common bean production R. A. HensonF. A. Bliss OriginalPaper Pages: 133 - 138
Assessment of the nitrogen requirements of maize (Zea mays L.) in Southern Guinea Savanna agroecology of Nigeria O. O. AgbedeA. G. OjanugaA. Y. Adepoju OriginalPaper Pages: 139 - 144
Transformations of residual fertilizer P in a semi-arid tropical soil under eight-year peanut-wheat rotation M. S. AulakhN. S. Pasricha OriginalPaper Pages: 145 - 152
Comparison of Olsen and Pi soil tests for evaluating phosphorus bioavailability in a calcareous soil treated with single superphosphate and partially acidulated phosphate rock R. G. MenonS. H. ChienAbd el Nabi Gadalla OriginalPaper Pages: 153 - 158
Potassium response ofBrassica chinensis Baily in the Guangzhou area, Southern China H. D. RuanR. J. GilkesX. Z. Hu OriginalPaper Pages: 159 - 162
The effect of level of application on the residual value of superphosphate on a sandy soil in south-western Australia M. D. A. BollandN. J. Barrow OriginalPaper Pages: 163 - 172
Relative agronomic merit of fused calcium phosphate E. OtabbongJ. Persson OriginalPaper Pages: 173 - 185
Fate of ammonium-N in pot studies as affected by DCD addition K. Vilsmeier OriginalPaper Pages: 187 - 189
Turnover of15N ammonium sulfate with dicyandiamide under aerobic and anaerobic soil conditions K. Vilsmeier OriginalPaper Pages: 191 - 196
Potential use of naturally occurring sulphuric acid to beneficiate poorly soluble phosphate from Eppawala, Sri Lanka Kapila DahanayakeAtula SenaratneA. Liyanaarachchi OriginalPaper Pages: 197 - 201
Flotation of a carbonate rich sedimentary phosphate rock T. F. Al-FarissH. O. OzbelgeA. M. Abdulrazik OriginalPaper Pages: 203 - 208
Comparison between acidulation by sulfuric acid and by phosphoric acid for Saudi phosphate rock T. F. Al-FarissS. S. E. H. ElnashaieH. A. Ibrahim OriginalPaper Pages: 209 - 227
Economical nitrogen—sulfur fluids J. L. BolesC. A. HodgeL. C. Faulkner OriginalPaper Pages: 233 - 248