1. Response of tomato to nitrogen fertilization and irrigation frequencies in a semi-arid tropical soil

   • P. O. Nwadukwe
   • V. O. Chude

   OriginalPaper Pages: 85 - 88

2. Impact on ammonia volatilization losses of mixing KCl of high pH with urea

   • C. B. Christianson
   • G. Carmona
   • R. G. Howard

   OriginalPaper Pages: 89 - 92

3. Dissolution of phosphate rock during the composting of poultry manure: an incubation experiment

   • S. Mahimairaja
   • N. S. Bolan
   • M. J. Hedley

   OriginalPaper Pages: 93 - 104

4. Coupling of dry matter and nitrogen accumulation in ryegrass

   • A. R. Overman
   • D. L. Robinson
   • S. R. Wilkinson

   OriginalPaper Pages: 105 - 108

5. Phosphate availability in calcareous Vertisols and Inceptisols in relation to fertilizer type and soil properties

   • B. Castro
   • J. Torrent

   OriginalPaper Pages: 109 - 119

6. Influence of continuous cropping and fertilization on adsorption and desorption of soil phosphorus

   • K. N. Sharma
   • Harjit Singh
   • A. C. Vig

   OriginalPaper Pages: 121 - 128

7. Effect of citrate and tartrate on phosphate adsorption by amorphous ferric hydroxide

   • C. Dye

   OriginalPaper Pages: 129 - 134

8. Agricultural response functions for limited resource farmers in Sub-Saharan Africa

   • Pierre -Justin Kouka
   • Curtis M Jolly
   • Julio Henao

   OriginalPaper Pages: 135 - 141

9. Assessing nitrogen mineralization from soil organic matter using anion exchange membranes

   • P. Qian
   • J. J. Schoenau

   OriginalPaper Pages: 143 - 148

10. Human urine - Chemical composition and fertilizer use efficiency

    • H. Kirchmann
    • S. Pettersson

    OriginalPaper Pages: 149 - 154

11. The effect of increasing application rate of granular calcium ammonium nitrate on net nitrification in a laboratory study of grassland soils

    • C. J. Watson
    • D. J. Kilpatrick
    • J. E. Cooper

    OriginalPaper Pages: 155 - 161

12. Acid region '95?

    Announcement Pages: 163 - 163