Phosphorus requirement and sources of nitrogen in three soybean (Glycine max) genotypes, Bragg, nts 382 and Chippewa S. F. B. N. GunawardenaS. K. A. DansoF. Zapata Research Article Pages: 1 - 9
Carbon distribution in grass (Festuca pratensis L.) during regrowth after cutting—utilization of stored and newly assimilated carbon Gerd Johansson Research Article Pages: 11 - 20
Wheat root biomass and nitrogen dynamics—effects of daily irrigation and fertilization Thomas KättererAnn-Charlotte HanssonOlof Andrén Research Article Pages: 21 - 30
Gas-exchange activity, carbohydrate status, and protein turnover in root nodule subpopulations of field pea (Pisum sativum L. cv. Century) Per-Åke VikmanJ. Kevin Vessey Research Article Pages: 31 - 38
Genotype-environment interaction and correlation between vegetative and grain production measures of potassium use-efficiency in wheat (T. aestivum L.) grown under potassium stress J. J. WoodendA. D. M. Glass Research Article Pages: 39 - 44
Phage sensitivity and host range of Rhizobium strains isolated from root nodules of temperate legumes Natalie I. NovikovaElena A. PavlovaElena V. Limeshchenko Research Article Pages: 45 - 53
Alleviation of soil acidity in Ultisol and Oxisol for corn growth H. IsmailJ. ShamshuddinS. R. Syed Omar Research Article Pages: 55 - 65
Yield responses of Nepalese spring wheat (Triticum aestivum L.) cultivars to inoculation with Azospirillum spp. of Nepalese origin Tribikram BhattaraiDieter Hess Research Article Pages: 67 - 76
Pyrolysis-field ionization mass spectrometry of agricultural soils and humic substances: Effect of cropping systems and influence of the mineral matrix Hans-Rolf SchltenPeter Leinweber Research Article Pages: 77 - 90
The kinetics of NH4 + and NO3 − uptake by Douglas fir from single N-solutions and from solutions containing both NH4 + and NO3 − Cobie Kamminga-Van WijkHidde B. A. Prins Research Article Pages: 91 - 96
Inhibition of nitrate uptake by aluminium in maize R. P. DurieuxW. A. JacksonR. H. Moll Research Article Pages: 97 - 104
Elevated atmospheric CO2 and feedback between carbon and nitrogen cycles Donald R. ZakKurt S. PregitzerDiana L. Randlett Research Article Pages: 105 - 117
Soil macrostructure and root growth of establishing seedlings P. S. Cornish Research Article Pages: 119 - 126
Nitrous oxide and dinitrogen emissions from urine-affected soil under controlled conditions R. M. MonaghanD. Barraclough Research Article Pages: 127 - 138
Nutrient and carbon dioxide release by interacting species of straw-decomposing fungi Clare H. RobinsonJ. DightonP. A. Coward Short Communication Pages: 139 - 142
Preparation of iron oxide-impregnated filter paper for use in the Pi test for soil phosphorus R. G. V. BramleyS. P. Roe Short Communication Pages: 143 - 146
Distribution of 15N from ammonium fertilizer in field grown Acacia N. ZakraR. W. WeaverG. de Taffin Short Communication Pages: 147 - 150