Table Of Content

Plant and Soil 139: 307-309, 1992. Contents of Volume 139 1992 Volume 139, No. 1 R. S. Utkhede, T. C. Vrain and J. M. Yorston, Effects of nematodes, fungi and bacteria on the growth of young apple trees grown in apple replant disease soil M. Hungria, A. R. J. Eaglesham and R. W. F. Hardy, Physiological comparisons of root and stem nodules of Aeschynomene scabra and Sesbania rostrata M. D. Serna and F. Pomares, Indexes of assessing N availability in sewage sludges A. Mozafar and J. J. Oertli, Uptake of a microbially-produced vitamin (B12) by soybean roots A. Mozafar and J. J. Oertli, Root-zone temperature and salinity: Interacting effects on tillering, growth and element concentration in barley A. Clemensson-Lindell and H. Persson, Effects of freezing on rhizosphere and root nutrient content using two soil sampling methods A. Cresswell, A. J. Gordon and L. R. Mytton, The physiology and biochemistry of cultivar-strain interactions in the white clover-Rhizobium symbiosis N. D. Turvey, C. Carlyle and G. M. Downes, Effects of micronutrients on the growth form of two families of Pinus radiata (D.Don) seedlings J. H. letswaart, W. A. J. Griffioen and W. H. O. Ernst, Seasonality of VAM infection in three populations of Agrostis capillaris (Gramineae) on soil with or without heavy metal enrichment J. W. Kloepper, R. Rodriguez-Käbana, J. A. Mcinroy and R. W. Young, Rhizosphere bacteria antagonistic to soybean cyst (Heterodera glycines) and root-knot (Meloidogyne incognita) nematodes: Identification by fatty acid analysis and frequency of biological control activity J. W. Kloepper, J. A. Mcinroy and K. L. Bowen, Comparative identification by fatty acid analysis of soil, rhizosphere, and geocarposphere bacteria of peanut (Arachis hypogaea L.) M. J. Goss and M. J. G. P. R. Carvalho, Manganese toxicity: The significance of magnesium for the sensitivity of wheat plants B. K. Teo, P. R. Verma and R. A. A. Morrall, The effects of herbicides and mycoparasites at different moisture levels on carpogenic germination in Sclerotinia sclerotiorum M. van Noordwijk, M. J. Kooistra, F. R. Boone, B. W. Veen and D. Schoonderbeek, Root-soil contact of maize, as measured by a thin-section technique. |. Validity of the method M. J. Kooistra, D. Schoonderbeek, F. R. Boone, B. W. Veen and M. van Noordwijk, Root-soil contact of maize, as measured by a thin-section technique. Il. Effects of soil compaction B. W. Veen, M. van Noordwijk, P. de Willigen, F. R. Boone and M. J. Kooistra, Root-soil contact of maize, as measured by a thin-section technique. Ill. Effects on shoot growth, nitrate and water uptake efficiency Short communications J. P. Schimmel, S. Helfer and |. J. Alexander, Effects of starch additions on N turnover in Sitka spruce forest floor 139 K. S. Kumarasinghe, C. Kirda, A. R. A. G. Mohamed, F. Zapata and S. K. A. Danso, $C isotope discrimination correlates with biological nitrogen fixation in soybean (Glycine max (L.) Merrill) 145 308 Volume 139, No. 2 . Tan, W. G. Keltjens and G. R. Findenegg, Acid soil damage in sorghum genotypes: Role of magnesium deficiency and root impairment . F. Chapman, M. J. Robson and R. W. Snaydon, Interactions between defoliation and the nitrogen nutrition of white clover (Trifolium repens L.): Effects on carbon utilisation in clonal plants . Christiansen-Weniger, A. F. Groneman and J. A. van Veen, Associative No fixation and root exudation of organic acids from wheat cultivars of different aluminium tolerance . R. Marin, P. H. Masscheleyn and W. H. Patrick Jr., The influence of chemical form and concentration of arsenic on rice growth and tissue arsenic concentration . K. Vessey, Cultivar differences in assimilate partitioning and capacity to maintain No fixation rate in pea during pod-filling J. T. Douglas, A. J. Koppi and C. J. Moran, Alteration of the structural attributes of a compact clay loam soil by growth of a perennial grass crop . Monza, M. J. Delgado and E. J. Bedmar, Nitrate reductase and nitrite reductase activity in free- living cells and bacteroids of Rhizobium loti . M. Kelly, S. A. Barber and G. S. Edwards, Modeling magnesium, phosphorus and potassium uptake by loblolly pine seedlings using a Barber-Cushman approach . Marriott and M. Smith, Senescence and decomposition of white clover stolons in grazed upland grass/clover swards . Kieliszewska-Rokicka, Effect of nitrogen level on acid phosphatase activity of eight isolates of ectomycorrhizal fungus Paxillus involutus cultured in vitro . O. Nyamai, Investigations on decomposition of foliage of woody species using a perfusion method . J. Atwell, Nitrate and ammonium as nitrogen sources for lupins prior to nodulation . Griffiths and D. Robinson, Root-induced nitrogen mineralisation: A nitrogen balance model M. Mamoun and J. M. Olivier, Effect of soil Pseudomonads on colonization of hazel roots by the ecto-mycorrhizal species Tuber melanosporum and its competitors X. Zou, D. W. Valentine, R. L. Sanford Jr. and D. Binkley, Resin-core and buried-bag estimates of nitrogen transformations in Costa Rican lowland rainforests T. He and G. R. Cramer, Growth and mineral nutrition of six rapid-cycling Brassica species in response to seawater salinity Short communications S. J. Park and B. R. Buttery, Ethyl-methane sulphonate (EMS) induced nodulation mutants of common bean (Phaseolus vulgaris L.) lacking effective nodules A. Camprubi, V. Estaün and C. Calvet, Effect of aromatic plant species on vesicular-arbuscular mycorrhizal establishment in Pistacia terebinthus Instructions to authors Contents of Volume 139