The "oxygen paradox" of dinitrogen-fixing bacteria K. MarchalJ. Vanderleyden REVIEW ARTICLE Pages: 363 - 373
Soluble organic nitrogen in agricultural soils D. V. MurphyA. J. MacdonaldW. S. Wilmer REVIEW ARTICLE Pages: 374 - 387
New insights into organic-mineral particles: composition, properties and models of molecular structure H.-R. SchultenP. Leinweber REVIEW ARTICLE Pages: 399 - 432
The central role of microbial activity for iron acquisition in maize and sunflower J. MasalhaH. KosegartenK. Mengel ORIGINAL PAPER Pages: 433 - 439
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. VanlauweK. AihouR. Merckx ORIGINAL PAPER Pages: 440 - 449
Effect of calcium carbonate, sand, and organic matter levels on mortality of five species of Azospirillum in natural and artificial bulk soils Y. BashanP. Vazquez ORIGINAL PAPER Pages: 450 - 459
Phosphate-solubilizing microorganisms associated with the rhizosphere of mangroves in a semiarid coastal lagoon P. VazquezG. HolguinY. Bashan ORIGINAL PAPER Pages: 460 - 468
Two new terricolous spathidiids (Protozoa, Ciliophora) from tropical Africa: Arcuospathidium vlassaki and Arcuospathidium bulli W. Foissner ORIGINAL PAPER Pages: 469 - 477
Long-term suppression of Pythium ultimum in arid soil using fresh and composted municipal wastes J. A. PascualT. HernandezJ. M. Lynch ORIGINAL PAPER Pages: 478 - 484
Inoculation of rice plants with the endophytic diazotrophs Herbaspirillum seropedicae and Burkholderia spp. V.L. Divan BaldaniJ. I. BaldaniJ. Döbereiner ORIGINAL PAPER Pages: 485 - 491
Combining field incubation with nitrogen-15 labelling to examine nitrogen transformations in low to high intensity grassland management systems D. J. HatchS. C. JarvisR. D. Lovell ORIGINAL PAPER Pages: 492 - 499
Inventory of nitrous oxide emissions from agriculture in Belgium – calculations according to the revised 1996 Intergovernmental Panel on Climate Change guidelines E. Van MoortelP. BoeckxO. Van Cleemput ORIGINAL PAPER Pages: 500 - 509
A rapid chloroform-fumigation extraction method for measuring soil microbial biomass carbon and nitrogen in flooded rice soils C. WittJ. L. GauntH.-U. Neue ORIGINAL PAPER Pages: 510 - 519
Dynamics of soil microbial biomass and nitrogen availability in a flooded rice soil amended with different C and N sources C. WittU. BikerJ. C. G. Ottow ORIGINAL PAPER Pages: 520 - 527
Towards a better understanding of carbon flow in the rhizosphere: a time-dependent approach using carbon-14 F. R. WarembourgH. D. Estelrich ORIGINAL PAPER Pages: 528 - 534
Rhizobiology and nitrogen fixation of some tree legumes native to Sri Lanka T.I. Lalani WijesundaraL.H.J. Van HolmS. A. Kulasooriya ORIGINAL PAPER Pages: 535 - 543
Influence of soil compaction on carbon and nitrogen mineralization of soil organic matter and crop residues S. De NeveG. Hofman ORIGINAL PAPER Pages: 544 - 549
Colonization behaviour of two enterobacterial strains on cereals R. RemusS. RuppelW. Merbach ORIGINAL PAPER Pages: 550 - 557
Response of Mucuna pruriens to symbiotic nitrogen fixation by rhizobia following inoculation in farmers' fields in the derived savanna of Benin P. HoungnandanN. SangingaO. Van Cleemput ORIGINAL PAPER Pages: 558 - 565
Nitrogen and phosphorus management on Dutch dairy farms: legislation and strategies employed to meet the regulations J. J. Neeteson ORIGINAL PAPER Pages: 566 - 572