Plant and bacterial mucilages of the maize rhizosphere: Comparison of their soil binding properties and histochemistry in a model system M. WattM. E. McCullyC. E. Jeffree Research Article Pages: 151 - 165
Genotypic differences in nitrogen assimilation in Vicia faba: Effect of nitrate Juan Manuel CabaCarmen LluchFrancisco Ligero Research Article Pages: 167 - 174
Emergence and growth of two non-nodulated soybean genotypes (Glycine max (L.) Merr.) in response to soil acidity K. D. RitcheyT. E. Carter Jr. Research Article Pages: 175 - 183
Arsenate tolerance in Agrostis castellana and Agrostis delicatula T. De KoeN. M. M. Jaques Research Article Pages: 185 - 191
Differences among maize cultivars in the utilization of soil nitrate and the related losses of nitrate through leaching F. WieslerW. J. Horst Research Article Pages: 193 - 203
Potential role of allelopathy in the soil and the decomposing root of Chinese-fir replant woodland Qishui Zhang Research Article Pages: 205 - 210
Regulation of NH4 + uptake in wheat plants: Effect of root ammonium concentration and amino acids H. F. CausinA. J. Barneix Research Article Pages: 211 - 218
Effectiveness of VAM fungi in nonsterile soils before and after optimization of P in soil solution M. HabteR. L. Fox Research Article Pages: 219 - 226
Heterogeneity of soil and soil solution chemistry under Norway spruce (Picea abies Karst.) and European beech (Fagus silvatica L.) as influenced by distance from the stem basis A. S. KochE. Matzner Research Article Pages: 227 - 237
Growth and development of seminal and crown root systems in N-limited barley, and their contributions to nitrate acquisition during vegetative and generative growth M. MattssonT. LundborgC.-M. Larsson Research Article Pages: 239 - 247
Iron deficiency in lentil: Yield loss and geographic distribution in a germplasm collection W. ErskineN. P. SaxenaM. C. Saxena Research Article Pages: 249 - 254
Manganese nutrition and accumulation of phenolics and lignin as related to differential resistance of wheat genotypes to the take-all fungus Z. RengelR. D. GrahamJ. F. Pedler Research Article Pages: 255 - 263
Utilization of the ambient concentration as a criterion for steady state after exponential growth: Some culture experiments with optimum or suboptimum N nutrition A. H. J. FreijsenH. Otten Research Article Pages: 265 - 271
Assessment of lead availability in soils contaminated by mine spoil Marcus JoponyScott Young Research Article Pages: 273 - 278
Effects of a short-term p-hydroxybenzoic acid application on grain yield and yield components in different tiller categories of spring barley O. ChristenJ. V. Lovett Research Article Pages: 279 - 286
Effects of an organic manure on the transformations of ammonium nitrogen in planted and unplanted soil S. P. TrehanA. Wild Research Article Pages: 287 - 294