Leaf position-dependent changes in proline, pyrroline-5-carboxylate reductase activity and water relations under salt-stress in genetically stable salt-tolerant somaclones ofBrassica juncea L. Shashi MadanH. S. NainawateeJ. B. Chowdhury Research Article Pages: 151 - 156
Effect of pH on competition for nodule occupancy by type I and type II strains ofRhizobium leguminosarum bv.phaseoli S. D. FreyL. K. Blum Research Article Pages: 157 - 164
Soil acidity in relation to groundnut-Bradyrhizobium symbiotic performance Diman van RossumArthur MuyotchaFred C. Boogerd Research Article Pages: 165 - 175
Siderophore production byBradyrhizobium spp. strains nodulating groundnut Diman van RossumArthur MuyotchaFred C. Boogerd Research Article Pages: 177 - 187
Nitrous oxide and carbon dioxide emissions from pelletized and nonpelletized poultry litter incorporated into soil M. L. CabreraS. C. ChiangS. A. Thompson Research Article Pages: 189 - 195
Pre-germination effects on mechanically impeded root growth of barley (Hordeum vulgare L) K. M. Volkmar Research Article Pages: 197 - 202
Contribution by two arbuscular mycorrhizal fungi to P uptake by cucumber (Cucumis sativus L.) from32P-labelled organic matter during mineralization in soil Erik J. JonerIver Jakobsen Research Article Pages: 203 - 209
The temperature-dependence of the maximum axial growth pressure of roots of pea (Pisum sativum L.) W. R. WhalleyL. J. ClarkA. R. Dexter Research Article Pages: 211 - 215
Characterisation of the type and extent of nutrient limitation in grassland vegetation using a bioassay with intact sods Han OlffDick M. Pegtel Research Article Pages: 217 - 224
Determination of stable molybdenum isotopes by thermionic mass spectrometry for tracer studies of molybdenum plant metabolism M. SaumerE. GantnerH. J. Ache Research Article Pages: 225 - 233
Denitrification and N2O emission from urine-affected grassland soil C. A. M de KleinR. S. P. van Logtestijn Research Article Pages: 235 - 241
Distribution of soil fractions and location of soil bacteria in a vertisol under cultivation and perennial grass M. KabirJ. L. ChotteL. Jocteur Monrozier Research Article Pages: 243 - 255
Soil P resources, plant growth and rooting characteristics in nutrient poor upland grasslands A. E. S. MacklonL. A. Mackie-DawsonA. Lilly Research Article Pages: 257 - 266
Root growth and nitrate utilization of maize cultivars under field conditions F. WieslerW. J. Horst Research Article Pages: 267 - 277
Models for predicting soil zinc availability for barley X. WuI. Aasen Research Article Pages: 279 - 285
Interference effects of the invasive plantCarduus nutans L. against the nitrogen fixation ability ofTrifolium repens L. D. A. WardleK. S. NicholsonA. Rahman Research Article Pages: 287 - 297
The response of seedlings of two dipterocarp species to nutrient additions and ectomycorrhizal infection Lee Su SeeI. J. Alexander Research Article Pages: 299 - 306