1. Differential production of oxalate by mycorrhizal fungi in arid ecosystems

   • M. F. Allen
   • C. Figueroa
   • E. B. Allen

   Original Paper Pages: 287 - 292

2. Carbon mineralization kinetics as influenced by soil properties

   • R. Riffaldi
   • A. Saviozzi
   • R. Levi-Minzi

   Original Paper Pages: 293 - 298

3. Ergosterol and microbial biomass relationship in soil

   • G. Djajakirana
   • R. G. Joergensen
   • B. Meyer

   Original Paper Pages: 299 - 304

4. Use of NaCN to increase the growth of N₂-fixing bacteria in a model spermosphere mimicked by sucrose and amino acids leached by seeds

   • H. Ota
   • Y. Easashi

   Original Paper Pages: 305 - 309

5. Winter cover cropping influence on nitrogen mineralization, presidedress soil nitrate test, and corn yields

   • S. Kuo
   • U. M. Sainju
   • E. Jellum

   Original Paper Pages: 310 - 317

6. Effect of the inhibitors nitrapyrin and sodium chlorate on nitrification and N₂O formation in an acid forest soil

   • J. Bauhus
   • A. C. Meyer
   • R. Brumme

   Original Paper Pages: 318 - 325

7. Nitrogen and oxygen isotope ratios of nitrous oxide emitted from soil and produced by nitrifying and denitrifying bacteria

   • E. A. Webster
   • D. W. Hopkins

   Original Paper Pages: 326 - 330

8. Contributions from different microbial processes to N₂O emission from soil under different moisture regimes

   • F. A. Webster
   • D. W. Hopkins

   Original Paper Pages: 331 - 335

9. Modeling of net N-mineralization with a method of heuristic self-organization (GMDH)

   • A. Rohde

   Original Paper Pages: 336 - 341

10. Biological soil amelioration as the basis of sustainable agriculture and forestry

    • M. Oikarinen

    Original Paper Pages: 342 - 344

11. Volatilization losses of surface-applied urea nitrogen from Vertisols in the Indian semi-arid tropics

    • Ashok K. Patra
    • J. R. Burford
    • T. J. Rego

    Original Paper Pages: 345 - 349

12. Role of earthworms in nitrogen cycling during the cropping phase of shifting agriculture (Jhum) in north-east India

    • Tunira Bhadauria
    • P. S. Ramakrishnan

    Original Paper Pages: 350 - 354

13. Earthworm response to 10 weeks of incubation in a pot with acid mine spoil, sewage sludge, and lime

    • E. Pallant
    • L. M. Hilster

    Original Paper Pages: 355 - 358

14. Oxidation of methane in the rhizosphere of rice plants

    • H. A. C. Denier van der Gon
    • H. -U. Neue

    Original Paper Pages: 359 - 366

15. Characteristics of earthworm casts affecting herbicide sorption and movement

    • N. S. Bolan
    • S. Baskaran

    Original Paper Pages: 367 - 372

16. Arylsulfatase activity in soil and soil extracts using natural and artificial substrates

    • J. K. Whalen
    • P. R. Warman

    Original Paper Pages: 373 - 378