Effects of aluminium on nodulation of two Stylosanthes species grown in nutrient solution margarida M. De CarvalhoD. G. EdwardsC. S. Andrew OriginalPaper Pages: 141 - 152
Amidase and urease activities in plants W. T. Frankenberger Jr.M. A. Tabatabai OriginalPaper Pages: 153 - 166
Correlation of greenhouse bioassay with field response to fertilizer by paper birch L. O. Safford OriginalPaper Pages: 167 - 176
Biomass, nutrient distribution and litterfall in Populus, Pinus and Picea stands on two different soils in Minnesota Donald A. PeralaDavid H. Alban OriginalPaper Pages: 177 - 192
Effect of mulches on bacterial populations and enzyme activity in soil and vegetable yields Lester HankinDavid E. HillGeorge R. Stephens OriginalPaper Pages: 193 - 201
Lithium as a non-radioactive tracer for roots of intercropped species M. P. L. D. MartinR. W. SnaydonD. S. H. Drennan OriginalPaper Pages: 203 - 208
Effect of vesicular arbuscular mycorrhiza and soluble phosphate onAbelmoscus esculentus (L.) Moench K. R. KrishnaD. J. Bagyaraj OriginalPaper Pages: 209 - 213
Effects of dry and moist incubation of soils on the extractability of native and applied soil copper J. G. WilliamsR. G. McLaren OriginalPaper Pages: 215 - 224
Effects of phosphate sorptivity on long-term plant recovery and effectiveness of fertilizer phosphate in soils I. C. R. Holford OriginalPaper Pages: 225 - 236
The effects of crop rotation and fertilization on soil xylanase activity in a soil of the southeastern United States R. Rodíguez-Kábana OriginalPaper Pages: 237 - 247
Competition of strains of Rhizobium of the cowpea group in two soil types B. S. GhaiI. S. KarirS. K. Agnihotri Short Communications Pages: 251 - 253
Effects of three systemic insecticides on seed germination and growth ofPinus halepensis seedlings M. O. OlofinbobaT. T. Kozlowski Short Communications Pages: 255 - 258
Influence of Ca, pH and humic acid on Cd uptake L. D. TylerM. B. McBride Short Communications Pages: 259 - 262
Effect of ammonium or nitrate on nitrogen fixation by a terrestrial Blue-green alga G. A. Rodgers Short Communications Pages: 263 - 266
An improved method for the selective determination of trace quantities of arsenite and arsenate in plant material F. -A. AustenfeldR. L. Berghoff Short Communications Pages: 267 - 271
The effect of water stress on the mortality ofBetula pendula Roth. andBuddleia davidii Franch. seedlings R. N. HumphriesM. A. JordanL. Guarino Short Communications Pages: 273 - 276
Root CEC determinations to establish root biomasses of two plant species grown in mixtures Sep R. TroelstraFrank Berendse Short Communications Pages: 277 - 281
Influence of simazine on formation of vesicular-arbuscular mycorrhizae inChenopodium quinona Willd S. M. SchwabE. L. V. JohnsonJ. A. Menge Short Communications Pages: 283 - 287
Colonisation of modified metalliferous environments in Zaïre by the copper flowerHaumaniastrum katangense F. MalaisseR. R. Brooks Short Communications Pages: 289 - 293