1. The "oxygen paradox" of dinitrogen-fixing bacteria

   • K. Marchal
   • J. Vanderleyden

   REVIEW ARTICLE Pages: 363 - 373

2. Soluble organic nitrogen in agricultural soils

   • D. V. Murphy
   • A. J. Macdonald
   • W. S. Wilmer

   REVIEW ARTICLE Pages: 374 - 387

3. Modelling refractory soil organic matter

   • P. D. Falloon
   • P. Smith

   REVIEW ARTICLE Pages: 388 - 398

4. New insights into organic-mineral particles: composition, properties and models of molecular structure

   • H.-R. Schulten
   • P. Leinweber

   REVIEW ARTICLE Pages: 399 - 432

5. The central role of microbial activity for iron acquisition in maize and sunflower

   • J. Masalha
   • H. Kosegarten
   • K. Mengel

   ORIGINAL PAPER Pages: 433 - 439

6. Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and land-use history for soils from the West African moist savanna zone

   • B. Vanlauwe
   • K. Aihou
   • R. Merckx

   ORIGINAL PAPER Pages: 440 - 449

7. Effect of calcium carbonate, sand, and organic matter levels on mortality of five species of Azospirillum in natural and artificial bulk soils

   • Y. Bashan
   • P. Vazquez

   ORIGINAL PAPER Pages: 450 - 459

8. Phosphate-solubilizing microorganisms associated with the rhizosphere of mangroves in a semiarid coastal lagoon

   • P. Vazquez
   • G. Holguin
   • Y. Bashan

   ORIGINAL PAPER Pages: 460 - 468

9. Two new terricolous spathidiids (Protozoa, Ciliophora) from tropical Africa: Arcuospathidium vlassaki and Arcuospathidium bulli

   • W. Foissner

   ORIGINAL PAPER Pages: 469 - 477

10. Long-term suppression of Pythium ultimum in arid soil using fresh and composted municipal wastes

    • J. A. Pascual
    • T. Hernandez
    • J. M. Lynch

    ORIGINAL PAPER Pages: 478 - 484

11. Inoculation of rice plants with the endophytic diazotrophs Herbaspirillum seropedicae and Burkholderia spp.

    • V.L. Divan Baldani
    • J. I. Baldani
    • J. Döbereiner

    ORIGINAL PAPER Pages: 485 - 491

12. Combining field incubation with nitrogen-15 labelling to examine nitrogen transformations in low to high intensity grassland management systems

    • D. J. Hatch
    • S. C. Jarvis
    • R. D. Lovell

    ORIGINAL PAPER Pages: 492 - 499

13. Inventory of nitrous oxide emissions from agriculture in Belgium – calculations according to the revised 1996 Intergovernmental Panel on Climate Change guidelines

    • E. Van Moortel
    • P. Boeckx
    • O. Van Cleemput

    ORIGINAL PAPER Pages: 500 - 509

14. A rapid chloroform-fumigation extraction method for measuring soil microbial biomass carbon and nitrogen in flooded rice soils

    • C. Witt
    • J. L. Gaunt
    • H.-U. Neue

    ORIGINAL PAPER Pages: 510 - 519

15. Dynamics of soil microbial biomass and nitrogen availability in a flooded rice soil amended with different C and N sources

    • C. Witt
    • U. Biker
    • J. C. G. Ottow

    ORIGINAL PAPER Pages: 520 - 527

16. Towards a better understanding of carbon flow in the rhizosphere: a time-dependent approach using carbon-14

    • F. R. Warembourg
    • H. D. Estelrich

    ORIGINAL PAPER Pages: 528 - 534

17. Rhizobiology and nitrogen fixation of some tree legumes native to Sri Lanka

    • T.I. Lalani Wijesundara
    • L.H.J. Van Holm
    • S. A. Kulasooriya

    ORIGINAL PAPER Pages: 535 - 543

18. Influence of soil compaction on carbon and nitrogen mineralization of soil organic matter and crop residues

    • S. De Neve
    • G. Hofman

    ORIGINAL PAPER Pages: 544 - 549

19. Colonization behaviour of two enterobacterial strains on cereals

    • R. Remus
    • S. Ruppel
    • W. Merbach

    ORIGINAL PAPER Pages: 550 - 557

20. Response of Mucuna pruriens to symbiotic nitrogen fixation by rhizobia following inoculation in farmers' fields in the derived savanna of Benin

    • P. Houngnandan
    • N. Sanginga
    • O. Van Cleemput

    ORIGINAL PAPER Pages: 558 - 565

21. Nitrogen and phosphorus management on Dutch dairy farms: legislation and strategies employed to meet the regulations

    • J. J. Neeteson

    ORIGINAL PAPER Pages: 566 - 572