Variation among black walnut seedling families in resistance to competition and allelopathy George RinkJ. W. Van Sambeek OriginalPaper Pages: 3 - 10
Labile pool and selective distribution of iron in calcareous and sodic soils S. DyanandM. K. Sinha OriginalPaper Pages: 11 - 21
Relationships of soil chemical properties to composition of five barley cultivars, and relationships between constituents of whole plants and of grain A. C. DickS. S. MalhiD. R. Walker OriginalPaper Pages: 23 - 29
Distribution of spring barley roots in Danish soils, of different texture and under different climatic conditions H. Breuning Madsen OriginalPaper Pages: 31 - 43
Influence of waterlogging on availability and uptake of heavy metals by oat grown in different soils Gerda Krog BjerreHans-Henrik Schierup OriginalPaper Pages: 45 - 56
Uptake of six heavy metals by oat as influenced by soil type and additions of cadmium, lead, zinc and copper Gerda Krog BjerreHans-Henrik Schierup OriginalPaper Pages: 57 - 69
Nature and properties of humic acid prepared from different sources and its effect on nutrient availability Samir PalM. B. Sengupta OriginalPaper Pages: 71 - 91
Influence of washing on elemental analysis of leaves of fieldgrown crop plants W. L. HargroveK. OhkiD. O. Wilson OriginalPaper Pages: 93 - 100
Comparative effects of precipitation acidity on three forest soils: carbon cycling responses Christopher S. Cronan OriginalPaper Pages: 101 - 112
Effect of periodate oxidation on the polysaccharide content and microaggregate stability of rhizosphere and non-rhizosphere soils G. P. SparlingM. V. Cheshire OriginalPaper Pages: 113 - 122
Importance of adventitious roots to growth of floodedPlatanus occidentalis seedlings H. TsukaharaT. T. Kozlowski OriginalPaper Pages: 123 - 132
Cassava as an alternate host for multiplication of VAM fungi V. P. Potty Short Communications Pages: 135 - 137
Competition studies withRhizobium trifolii in laboratory experiments T. J. McLoughlinL. K. Dunican Short Communications Pages: 139 - 143
Predicting nitrogen availability to raphia palms (Raphia hookeri) under various moisture regimes N. O. Aisueni Short Communications Pages: 145 - 148
Effect of boron on soluble protein and sugar contents of tomato roots R. M. EstebanJ. G. ColladoM. Fernandez Herrera Short Communications Pages: 149 - 151
Most probable numbers of Azospirillum associated with the roots of inoculated pearl millet A. V. RaoB. Venkateswarlu Short Communications Pages: 153 - 158