1. Studies on the phosphate potentials of soils

   • P. H. T. Beckett
   • R. E. White

   OriginalPaper Pages: 253 - 282

2. The effect of some actinomycetes on rhizobia andAgrobacterium radiobacter

   • D. A. Van Schreven

   OriginalPaper Pages: 283 - 302

3. Die Aufnahme von Kohlendioxid durch die Pflanzenwurzel

   • H. Kick
   • D. Sauerbeck
   • F. Führ

   OriginalPaper Pages: 303 - 316

4. An investigation into the possible changes in the microbial population of soils stored at −15°C

   • E. Grossbard
   • D. M. Hall

   OriginalPaper Pages: 317 - 332

5. The humification of high-moor peat

   • K. T. Wieringa

   OriginalPaper Pages: 333 - 344

6. An investigation into the bacteriology of top-soil dumps

   • H. Barkworth
   • Mary Bateson

   OriginalPaper Pages: 345 - 353

7. Evaluation of available phosphorus in highly phosphorus-deficient soils

   • U. Kafkafi
   • J. Hagin
   • A. Şaplakoglu

   OriginalPaper Pages: 354 - 364

8. Study on the phosphate retention and release in some East Pakistan soils

   • D. H. Khan
   • A. C. Roy

   OriginalPaper Pages: 365 - 376

9. Studies on the major-element deficiencies of the pigeon pea (Cajanus cajan) in sand culture

   • R. Nichols

   OriginalPaper Pages: 377 - 387

10. Effect of four acidifying materials added to a calcareous soil on the availability of phosphorus to ryegrass

    • M. B. Sen Gupta
    • A. H. Cornfield

    Short Communication Pages: 388 - 390

11. The effect of 2:4-dinitro-phenol on phosphorus transformations during humus decomposition

    • H. F. Birch

    Short Communication Pages: 391 - 394