1. Influence of clipping and soil water status on vesicular-arbuscular mycorrhizae of two semi-arid tussock grasses

   • M. F. Allen
   • J. H. Richards
   • C. A. Busso

   OriginalPaper Pages: 285 - 289

2. Formation of phosphoryl triamide by decomposition of thiophosphoryl triamide in soil

   • G. W. McCarty
   • J. M. Bremner

   OriginalPaper Pages: 290 - 292

3. Use of nutrient: phosphorus ratios to evaluate the effects of vesicular arbuscular mycorrhiza on nutrient uptake in unsterilized soils

   • J. Arines
   • A. Vilariño

   OriginalPaper Pages: 293 - 297

4. Mineral-fixed ammonium in clay- and silt-size fractions of soils incubated with ¹⁵N-ammonium sulphate for five years

   • E. S. Jensen
   • B. T. Christensen
   • L. H. Sørensen

   OriginalPaper Pages: 298 - 302

5. Growth and cocoon production of Perionyx excavatus (Oligochaeta)

   • A. J. Reinecke
   • L. Hallatt

   OriginalPaper Pages: 303 - 306

6. Interaction of the vesicular-arbuscular mycorrhizae of maize with extractable soil phosphorus levels and nitrogen-potassium fertilizers

   • A. J. R. Guttay
   • L. M. C. Dandurand

   OriginalPaper Pages: 307 - 310

7. Competition among strains of Bradyrhizobium and vesicular-arbuscular mycorrhizae for groundnut (Arachis hypogaea L.) root infection and their effect on plant growth and yield

   • P. T. C. Nambiar
   • V. Anjaiah

   OriginalPaper Pages: 311 - 318

8. Influence of microarthropod abundance and climatic factors on weight loss and mineral nutrient contents of Eucalyptus leaf litter during decomposition

   • M. V. Reddy
   • B. Venkataiah

   OriginalPaper Pages: 319 - 324

9. Hydrolysis of ammonium polyphosphate in soils under aerobic and anaerobic conditions

   • M. V. Venugopalan
   • R. Prasad

   OriginalPaper Pages: 325 - 327

10. Nutrient and phytotoxic contributions of residue to soil in no-till continuous-corn ecosystems

    • D. P. Breakwell
    • R. F. Turco

    OriginalPaper Pages: 328 - 334

11. Detection of nitrification in a stagnohumic-gley soil

    • D. W. Hopkins
    • A. G. O'Donnell
    • R. S. Shiel

    OriginalPaper Pages: 335 - 338

12. Preparation of nitrogen and phosphorus-enriched paddy straw compost and its effect on yield and nutrient uptake by wheat (Triticum aestivum L.)

    • K. C. Bangar
    • S. Shanker
    • M. M. Mishra

    OriginalPaper Pages: 339 - 342

13. Effect of cultivation on microbial carbon and nitrogen in dry tropical forest soil

    • S. C. Srivastava
    • J. S. Singh

    OriginalPaper Pages: 343 - 348

14. Rapid and sensitive determination of microbial activity in soils and in soil aggregates by dimethylsulfoxide reduction

    • K. Alef
    • D. Kleiner

    OriginalPaper Pages: 349 - 355

15. Azospirillum — plant root associations: A review

    • K. Michiels
    • J. Vanderleyden
    • A. Van Gool

    OriginalPaper Pages: 356 - 368

16. Effects of nitrification inhibitors on germination of various seeds in soil

    • J. M. Bremner
    • M. J. Krogmeier

    OriginalPaper Pages: 369 - 372

17. Effects of plant-bacterial-amoebal interactions on plant uptake of nitrogen under field conditions

    • M. Clarholm

    OriginalPaper Pages: 373 - 378