1. Superphosphates from Brazilian phosphate concentrates

   • E. Cekinski
   • J. H. Thomassin

   OriginalPaper Pages: 125 - 133

2. Kinetics of release of potassium by sodium tetraphenyl boron from some top soil samples of Red (Alfisols), Black (Vertisols) and Alluvial (Inceptisols and Entisols) soils of India

   • S. K. Dhillon
   • K. S. Dhillon

   OriginalPaper Pages: 135 - 138

3. Agronomic performance of urea briquette applicator in transplanted rice

   • N. K. Savant
   • P. S. Ongkingco
   • K. S. Rao

   OriginalPaper Pages: 139 - 142

4. Effects of phosphorus on yield of cowpea cultivars intercropped with pearl millet on Psammentic paleustalf in Niger

   • B. R. Ntare
   • A. Bationo

   OriginalPaper Pages: 143 - 147

5. Thirty years fertilization and irrigation in Dutch apple orchards: A review

   • J. A. Kipp

   OriginalPaper Pages: 149 - 156

6. The phase system CaO-CO(NH₂)₂-N₂O₅-H₂O at 25°C

   • A. W. Frazier

   OriginalPaper Pages: 157 - 160

7. Crystallography and equilibrium solubility for ammonium and potassium orthophosphites and hypophosphites

   • A. W. Frazier
   • K. R. Waerstad

   OriginalPaper Pages: 161 - 168

8. Agronomic effectiveness of partially acidulated rock phosphate and fused calcium-magnesium phosphate compared with superphosphate

   • M. D. A. Bolland
   • R. N. Glencross
   • Vijay Kumar

   OriginalPaper Pages: 169 - 183

9. Phosphorus effectiveness in fertilized soils evaluated by chemical solutions and residual value for wheat growth

   • R. E. Mendoza

   OriginalPaper Pages: 185 - 194

10. The residual value of rock phosphate and superphosphate from field sites assessed by glasshouse bioassay using three plant species with different external P requirements

    • Vijay Kumar
    • R. J. Gilkes
    • M. D. A. Bolland

    OriginalPaper Pages: 195 - 207

11. Foliar urea fertilization of cereals: A review

    • M. J. Gooding
    • W. P. Davies

    OriginalPaper Pages: 209 - 222

12. The interpretation of Olsen extractable P values in relation to recommendations for the fertilizer requirements of crops

    • D. K. Benbi
    • S. P. S. Brar

    OriginalPaper Pages: 223 - 227

13. Dryland wheat yield dependence on rainfall, applied N and mulching in preceding maize

    • K. S. Sandhu
    • D. K. Benbi
    • S. Saggar

    OriginalPaper Pages: 229 - 237

14. Nitric acid acidulation of phosphate rock and pyrolysis of acidulate to produce phosphatic and nitrogen fertilizers

    • Jack M. Sullivan
    • John H. Grinstead Jr.
    • John J. Kohler

    OriginalPaper Pages: 239 - 248

15. Response of subterranean clover (Trifolium subterraneum) to lime, magnesium, and boron on acid infertile soil in subtropical China

    • D. L. Michalk
    • Huang Zhi-Kai

    OriginalPaper Pages: 249 - 257