Field evaluation of laboratory techniques for predicting the ability of roots to penetrate strong soil and of the influence of roots on water sorptivity S. A. MaterecheraA. M. AlstonA. R. Dexter Research Article Pages: 149 - 158
Selection of Bradyrhizobium strains and provenances of Acacia mangium and Faidherbia albida: Relationship with their tolerance to acidity and aluminium D. LesueurH. G. DiemC. Le Roux Research Article Pages: 159 - 166
Amino acid content in xylem sap of regrowing alfalfa (Medicago sativa L.): Relations with N uptake, N2 fixation and N remobilization T. H. KimJ. BigotJ. Boucaud Research Article Pages: 167 - 174
Leaf expansion, photosynthesis, and water relations of sunflower plants grown on compacted soil A. AndradeD. W. WolfeE. Fereres Research Article Pages: 175 - 184
Towards the biological control of fungal and bacterial diseases of tomato using antagonistic Streptomyces spp. M. S. El-AbyadM. A. El-SayedSabha M. El-Sabbagh Research Article Pages: 185 - 195
Vesicular-arbuscular mycorrhizal effectiveness in an acid soil amended with fresh organic matter M. SoedarjoM. Habte Research Article Pages: 197 - 203
Near isogenic lines of soybeans as tools to identify nodulation specificmutants of Bradyrhizobium elkanii T. E. DevineJ. J. O'NeillL. D. Kuykendall Research Article Pages: 205 - 209
Competition between Tuber melanosporum and other ectomycorrhizal fungi under two irrigation regimes M. MamounJ. M. Olivier Research Article Pages: 211 - 218
Competition between Tuber melanosporum and other ectomycorrhizal fungi, under two irrigation regimes M. MamounJ. M. Olivier Research Article Pages: 219 - 225
Ethylene production in rice bronzing leaves induced by ferrous iron X. X. PengM. Yamauchi Research Article Pages: 227 - 234
A new approach to quantify the utilization of non-exchangeable soil potassium by plants D. MeyerA. Jungk Research Article Pages: 235 - 243
Determination of root distribution of wheat by auger sampling K. KumarS. S. PriharP. R. Gajri Research Article Pages: 245 - 253
Evaluating the contribution of magnesium deficiency in the aluminium toxicity syndrome in twelve sorghum genotypes Kezheng TanWillem G. KeltjensGünter R. Findenegg Research Article Pages: 255 - 261
Microtensiometer technique for in situ measurement of soil matric potential and root water extraction from a sandy soil Doris VetterleinHorst MarschnerRainer Horn Research Article Pages: 263 - 273
Use of a microtensiometer technique to study hydraulic lift in a sandy soil planted with pearl millet (Pennisetum americanum [L.] Leeke) Doris VetterleinHorst Marschner Research Article Pages: 275 - 282
Stomatal numbers of soybean and response to water stress B. R. ButteryC. S. TanD. C. MacTavish Research Article Pages: 283 - 288
Influence of root-induced pH on the solubility of soil aluminium in the rhizosphere Tara Singh Gahoonia Short Communication Pages: 289 - 291
The effect of acetylene on N transformations in an acid oak-beech soil W. De BoerP. J. A. Klein GunnewiekH. J. Laanbroek Short Communication Pages: 292 - 296