1. Influence of air porosity on distribution of gases in soil under assay for denitrification

   • G. W. McCarty
   • D. R. Shelton
   • A. M. Sadeghi

   ORIGINAL PAPER Pages: 173 - 178

2. Arbuscular mycorrhizal fungi respond to rhizobial inoculation and cropping systems in farmers' fields in the Guinea savanna

   • N. Sanginga
   • R. J. Carsky
   • K. Dashiell

   ORIGINAL PAPER Pages: 179 - 186

3. Time-course of dinitrogen fixation of promiscuous soybean cultivars measured by the isotope dilution method

   • R. C. Abaidoo
   • K. E. Dashiell
   • P. W. Singleton

   ORIGINAL PAPER Pages: 187 - 192

4. Soil microbial biomass and mineralization of carbon and nitrogen in ecological, integrated and conventional forage and arable cropping systems

   • T. A. Breland
   • R. Eltun

   ORIGINAL PAPER Pages: 193 - 201

5. Microbial activity in grassland soil amended with sewage sludge containing varying rates and combinations of Cu, Ni and Zn

   • M. Khan
   • J. Scullion

   ORIGINAL PAPER Pages: 202 - 209

6. Size and activity of the soil microbial biomass under grass and arable management

   • R. J. Haynes

   ORIGINAL PAPER Pages: 210 - 216

7. Influence of soil properties on microbial populations, activity and biomass in humid subtropical mountainous ecosystems of India

   • K. Arunachalam
   • A. Arunachalam
   • N. P. Melkania

   ORIGINAL PAPER Pages: 217 - 223

8. Inorganic fertilizer enrichment of soil: effect on decomposition of plant litter under subhumid tropical conditions

   • A. B. Kwabiah
   • R. P. Voroney
   • N. C. Stoskopf

   ORIGINAL PAPER Pages: 224 - 231

9. Changes in soil microbial biomass, metabolic quotient, and organic matter turnover under Hieracium (H. pilosella L.)

   • S. Saggar
   • P. D. McIntosh
   • H. Knicker

   ORIGINAL PAPER Pages: 232 - 238

10. Microbial response of an acid forest soil to experimental soil warming

    • S. S. Arnold
    • I. J. Fernandez
    • L. M. Zibilske

    ORIGINAL PAPER Pages: 239 - 244

11. Mineralization of organic sulfur and its importance as a reservoir of plant-available sulfur in upland soils of north China

    • W. Zhou
    • S. T. Li
    • B. Lin

    ORIGINAL PAPER Pages: 245 - 250

12. Effects of coniferous resin on fungal biomass and mineralisation processes in wood ant nest materials

    • L. Lenoir
    • J. Bengtsson
    • T. Persson

    ORIGINAL PAPER Pages: 251 - 257

13. Variation in quality and decomposability of red oak leaf litter along an urban-rural gradient

    • M. M. Carreiro
    • K. Howe
    • R. V. Pouyat

    ORIGINAL PAPER Pages: 258 - 268