1. Soil organic nitrogen composition in Pinus forest acid soils: variability and bioavailability

   • Á. Prieto-Fernández
   • Tarsy Carballas

   ORIGINAL PAPER Pages: 177 - 185

2. Within-field variability of mineral nitrogen in grassland

   • N. Bogaert
   • J. Salomez
   • M. Van Meirvenne

   ORIGINAL PAPER Pages: 186 - 193

3. Soil organic matter transformations induced by Hieracium pilosella L. in tussock grassland of New Zealand

   • H. Knicker
   • S. Saggar
   • I. Kögel-Knabner

   ORIGINAL PAPER Pages: 194 - 201

4. A new method for determining the metabolic activity of specific bacterial populations in soil using tritiated leucine and immunomagnetic separation

   • Gitte Sengeløv
   • Søren J. Sørensen
   • N. Kroer

   ORIGINAL PAPER Pages: 202 - 208

5. Influence of soil phosphorus status and nitrogen addition on carbon mineralization from 14C-labelled glucose in pasture soils

   • S. Saggar
   • C. B. Hedley
   • G. J. Salt

   ORIGINAL PAPER Pages: 209 - 216

6. Survival and cell culturability of biocontrol Pseudomonas fluorescens CHA0 in the rhizosphere of cucumber grown in two soils of contrasting fertility status

   • C. Hase
   • M. Hottinger
   • Y. Moënne-Loccoz

   ORIGINAL PAPER Pages: 217 - 221

7. Evolution of organic matter and nitrogen during co-composting of olive mill wastewater with solid organic wastes

   • C. Paredes
   • A. Roig
   • J. Cegarra

   ORIGINAL PAPER Pages: 222 - 227

8. Response of field-grown bean (Phaseolus vulgaris L.) to Rhizobium inoculation and nitrogen fertilization in two Cerrados soils

   • M. A. T. Vargas
   • Ieda C. Mendes
   • Mariangela Hungria

   ORIGINAL PAPER Pages: 228 - 233

9. Evaluation of symbiotic dinitrogen inputs of herbaceous legumes into tropical cover-crop systems

   • B. Ibewiro
   • N. Sanginga
   • R. Merckx

   ORIGINAL PAPER Pages: 234 - 242

10. Microbial diversity and activity of disturbed soil in the northern Chihuahuan Desert

    • X. Liu
    • William C. Lindemann
    • Robert L. Steiner

    ORIGINAL PAPER Pages: 243 - 249

11. Mechanical damage of roots provides enhanced colonization of the wheat endorhizosphere by the dinitrogen-fixing cyanobacterium Nostoc sp. strain 2S9B

    • M. Gantar

    ORIGINAL PAPER Pages: 250 - 255

12. Misidentification of soil bacteria by fatty acid methyl ester (FAME) and BIOLOG analyses

    • N. Oka
    • P. G. Hartel
    • H. D. Skipper

    ORIGINAL PAPER Pages: 256 - 258

13. Effects of Azospirillum brasilense on root morphology of common bean (Phaseolus vulgaris L.) under different water regimes

    • Marcelo A. German
    • Saul Burdman
    • Jaime Kigel

    ORIGINAL PAPER Pages: 259 - 264