The effect of sodium chlorate and nitrapyrin on the nitrification mediated nitrosation process in soils El Sayed AzharO. Van CleemputW. Verstraete OriginalPaper Pages: 133 - 139
Effects of soil applied herbicides on leaf nitrate reductase and crude protein in the leaf and seed of two cowpea cultivars D. N. OmokaroC. O. Ajakaiye OriginalPaper Pages: 141 - 146
Pathogenesis ofSynchytrium endobioticum VII. Earthworms as vectors of wart disease of potato M. C. HampsonJ. W. Coombes OriginalPaper Pages: 147 - 150
Citrus replant problem in Iraq I. Possible role of soil fungi and nematodes M. S. HassanA. H. El-BehadliI. S. Alsaadawi OriginalPaper Pages: 151 - 155
Citrus replant problem in Iraq II. Possible role of allelopathy M. S. HassanI. S. AlsaadawiA. El-Behadli OriginalPaper Pages: 157 - 160
Citrus replant problem in Iraq III. Interactive effect of soil fungi and allelopathy M. S. HassanA. H. El-BehadliI. S. Alsaadawi OriginalPaper Pages: 161 - 166
Nitrogen losses from field-grown spring barley plants as affected by rate of nitrogen application J. K. SchjørringN. E. NielsenA. Gottschau OriginalPaper Pages: 167 - 175
Crop responses to applications of both chlorsulfuron and monoammonium phosphate Patrice A. RotherRobert B. McKercher OriginalPaper Pages: 177 - 182
Response of cowpea to variations in planting density and nutrient level R. A. SmithJ. R. Porter OriginalPaper Pages: 183 - 190
Soil microbial biomass and respiration measurements: An automated technique based on infra-red gas analysis O. HeinemeyerH. InsamG. Walenzik OriginalPaper Pages: 191 - 195
Inducible nitrate reductase of rice plants as a possible indicator for nitrification in water-logged paddy soils Christiane UhelCatherine RoumetL. Salsac OriginalPaper Pages: 197 - 206
The selective allelopathic interaction of a pasture-forest intercropping in Taiwan Chang-Hung ChouSun-Jung ChangWei-Hsiung Den OriginalPaper Pages: 207 - 215
Determination of cation exchange capacity of ryegrass roots by summing exchangeable cations Z. RengelD. L. Robinson OriginalPaper Pages: 217 - 222
Aluminum and plant age effects on adsorption of cations in the Donnan free space of ryegrass roots Z. RengelD. L. Robinson OriginalPaper Pages: 223 - 227
Inoculation of willows (Salix spp.) with ectomycorrhizal fungi on mined boreal peatland M. A. J. LoreeI. LummeT. Tormala OriginalPaper Pages: 229 - 238
A comparison of methods for measuring the colonisation of a root system by fluorescent Pseudomonads K. G. DaviesR. Whitbread OriginalPaper Pages: 239 - 246
Factors affecting the colonisation of a root system by fluorescent Pseudomonads: The effects of water, temperature and soil microflora K. G. DaviesR. Whitbread OriginalPaper Pages: 247 - 256
Aluminum effects on growth, grain yield and nutrient use efficiency ratios in sorghum genotypes V. C. BaligarH. L. Dos SantosA. F. de C. Bahia Filho OriginalPaper Pages: 257 - 264
The porous-membrane technique for root studies of field-grown crops C. A. BeyroutyD. M. Oosterhuis OriginalPaper Pages: 265 - 271
Reduction in below-ground biomass estimates from freezing of soil cores D. L. PriceR. K. Heitschmidt Short Communications Pages: 273 - 274
Influence ofGlycine max nodulation on the persistence in soil of a genetically markedBradyrhizobium japonicum strain L. D. Kuykendall Short Communications Pages: 275 - 277
Chemical composition of fresh and composted urban waste P. L. GiusquianiM. PatumiM. Businelli Short Communications Pages: 278 - 282
Rhizobium meliloti inoculation of alfalfa selected for tolerance to acid, aluminum-rich soils P. G. HartelJ. H. Bouton Short Communications Pages: 283 - 285
Occurrence of nitrogen-fixing Azospirillum in vesicular-arbuscular mycorrhizal fungi K. V. B. R. TilakC. Y. LiIwan Ho Short Communications Pages: 286 - 288
Allelopathic effects of nicotine on maize I. Its possible importance in crop rotation S. J. H. RizviG. P. MishraV. Rizvi Short Communications Pages: 289 - 291
Allelopathic effects of nicotine on maize S. J. H. RizviG. P. MishraV. Rizvi Short Communications Pages: 292 - 293
