Contribution of organic acids to the acidification of the rhizosphere of maize seedlings Wolfgang PetersenMichael Böttger OriginalPaper Pages: 159 - 163
A model to predict transformations and losses of nitrogen in UK pastures grazed by beef cattle D. ScholefieldD. R. LockyerK. C. Tyson OriginalPaper Pages: 165 - 177
The bioavailability of cadmium to lettuce and cabbage in soils previously treated with sewage sludges Andrew P. JacksonBrian J. Alloway OriginalPaper Pages: 179 - 186
Mobilization of cadmium and other metals from two soils by root exudates of Zea mays L., Nicotiana tabacum L. and Nicotiana rustica L. M. MenchE. Martin OriginalPaper Pages: 187 - 196
Nutrient requirements of exotic tree species in Zimbabwe N. SangingaD. GwazeM. J. Swift OriginalPaper Pages: 197 - 205
Diversity of Frankia strains isolated from single nodules of Alnus glutinosa M. Faure-RaynaudC. DaniereA. Capellano OriginalPaper Pages: 207 - 211
Interference effects of Cassia uniflora Mill on Parthenium hysterophorus L. Syamasundar Joshi OriginalPaper Pages: 213 - 218
Temporal variations in some plant and soil P pools in two pasture soils of widely different P fertility status K. R. TateT. W. SpeirJ. C. Cowling OriginalPaper Pages: 219 - 232
Microbial biomass and bacteria in two pasture soils: An assessment of measurement procedures, temporal variations, and the influence of P fertility status K. R. TateD. J. RossKarina N. Whale OriginalPaper Pages: 233 - 241
Germination and seedling growth of carrots under salinity and moisture stress U. SchmidhalterJ. J. Oertli OriginalPaper Pages: 243 - 251
Growth responses of mycorrhizal and non-mycorrhizal tropical forage species to different levels of soil phosphate I. AriasI. KoomenD. S. Hayman OriginalPaper Pages: 253 - 260
Physiological characterization of opine-utilizing rhizobacteria for traits related to plant growth-promoting activity Chantal J. BeauchampDion PatriceHani Antoun OriginalPaper Pages: 273 - 279
Transport of Rb and Sr to the ear in mature, excised shoots of wheat: Effects of temperature and stem length on Rb removal from the xylem H. KuppelwieserU. Feller OriginalPaper Pages: 281 - 288
Response of determinate soybean cultivars to low pH soils J. E. BoardA. G. Caldwell Short Communication Pages: 289 - 292
Seed yield of sorghum grown in an alfisol, in relation to boron nutrition at the reproductive phase S. M. MisraN. C. SinhaP. S. Tomer Short Communication Pages: 293 - 296
Evaluation of the leaf juice of some higher plants for their toxicity against soil borne pathogens A. KumarS. C. Tripathi Short Communication Pages: 297 - 301