REFERENCES - Soil Ecology - page 589

Papendick, R.I. and Campbell, G.S. (1981) Theory and measurement of water potential, in Water Potential
Relations in Soil Microbiology (eds J.F. Parr, W.R. Gardner and L.F. Elliot), Soil Science Society of
America, Madison, Wisconsin, pp. 1-22.
Parker, L.W., Fowler, H.G., Ettershank, G. et al. (1982) The effects of subterranean termite removal on desert
soil nitrogen and ephemeral flora. Journal of Arid Environments, 5 , 53-9.
Parkinson, D. (1982) Filamentous fungi, in Methods of soil analysis. Part 2. Chemical and microbial
properties (eds A.L. Page, R.H. Miller and D.R. Keeney), American Society of Agronomy, Soil Science
Society ofAmerica, Madison, Wisconsin, pp. 949-68.
Parle, J.N. (1963) Microorganisms in the intestines of earthworms. Journal of General Microbiology, 31 , 1-11.
Parmelee, R.W. and Alston, D.G. (1986) Nematode trophic structure in conventional and no-tillage
agroecosystems. Journal of Nematology , 18 (3), 403-7.
Parmelee, R.W., Beare, M.H., Cheng, W. et al. (1990) Earthworms and enchytraeids in conventional and
no-tillage agroecosystems: a biocide approach to assess their role in organic matter breakdown. Biology
and Fertility of Soils , 10 , 1-10.
Parmelee, R.W., Ehrenfeld, J.G. and Tate, R.L.I. (1993) Effects of pine roots on microorganisms, fauna, and
nitrogen availability in two soil horizons of a coniferous forest spodosol. Biology and Fertility of Soils ,
15 , 113-9.
Parton, W.J., Anderson, D.W., Cole, C.V. et al. (1983) Simulation of soil organic matter formation and
mineralization in semiarid agroecosystems, in Nutrient Cycling in Agricultural Ecosystems (eds R.R.
Lowrance, R.L. Todd, L.E. Asmussen et al. ), Georgia Experimental Station, Athens, Georgia, pp. 533-50.
Pashanasi, B., Lavelle, P., Alegre, J. et al. (1996) Effect of the endogeic earthworm Pontoscolex corethrurus
on soil chemical characteristics and plant growth in a low-input tropical agroecosystem. Soil Biology &
Biochemistry, 28 (6), 801 -10.
Paton, T.R., Humphreys, G.S. and Mitchell, P.B. (1995) Soils: A New Global View. Yale University Press,
New Haven.
Patrick, W.H. and Jugsujinda, A. (1992) Sequential reduction and oxidation of inorganic nitrogen, manganese,
and iron in flooded soil. Soil Science Society of America, Proceedings, 56 , 1071-3.
Patriquin, D.G. (1982) Nitrogen fixation in sugarcane litter. Biological Agriculture and Horticulture, 1 , 39-64.
Patwardhan, A.S., Nieber, J.L. and Moore, I.D. (1988) Oxygen, carbon dioxide, and water transfer in soils:
mechanisms and crop response. Transactions of the American Society of Agricultural Engineers,
31 , 1383-95.
Pau, R.N. (1989) Nitrogenases without molybdenum. Trends in Biochemical Sciences, 14 , 183-6.
Paul, E.A. (1984) Dynamics of organic matter in soils. Plant and Soil, 76 , 275-85.
Paul, E.A. and Clark, F.E. (1989) Soil Microbiology and Biochemistry, Academic Press, London.
Peachey, J.E. (1963) Studies on Enchytraeidae (Oligochaeta) of moorland soils, in Progress in Soil Zoology
(ed. P.H. Murphy), Butterworths, London, pp. 286-93.
Peakall, R., Handel, S.M. and Beattie, A.J. (1991) The evidence for, and importance of, ant pollination, in
Ant-Plant Interactions (eds C.R. Huxley and D.F. Cutler), Oxford University Press, Oxford, pp. 421-9.
Pearce, M.J. and Waite, B.S. (1994) A list of termite genera (Isoptera) with comments on taxonomic changes
and regional distribution. Sociobiology , 23 (3), 247-63.
Pearson, R. and Parkinson, D. (1961) The sites of excretion of ninhydrin positive substances by Broad Bean
seedlings. Plant and Soil , 13 , 391-6.
Pedro, G. (1964) Contribution à l'étude expérimentale de l'altération géochimique des roches cristallines.
Annales Agronomiques , 15 , 85-191, 243-333, 9-456.
Pedro, G. (1979) Caractérisation générale des processus de l'altération hydrolytique. Base des méthodes