Uptake of saline groundwater by plants: An analytical model for semi-arid and arid areas Peter J. ThorburnGlen R. WalkerIan D. Jolly Research Article Pages: 1 - 11
Evidence against associative N2 fixation as a significant N source in long-term wheat plots E. BremerH. H. JanzenC. Gilbertson Research Article Pages: 13 - 19
Changes in the origin and quality of soil organic matter after pasture introduction in Rondônia (Brazil) Brigitte J. FeiglJerry MelilloCarlos C. Cerri Research Article Pages: 21 - 29
Stem deformity inPinus radiata plantations in south-eastern Australia Peter HopmansMatt KitchingGeorge Croatto Research Article Pages: 31 - 44
Nitrogen fixation by groundnut and soyabean and residual nitrogen benefits to rice in farmers' fields in Northeast Thailand B. ToomsanJ. F. McDonaghK. E. Giller Research Article Pages: 45 - 56
Estimates of seasonal nitrogen fixation of annual subterranean clover-based pastures using the15N natural abundance technique T. P. BolgerJ. S. PateN. C. Turner Research Article Pages: 57 - 66
Cadmium status of soils and plants from a long-term fertility experiment in southeast Norway A. S. JengB. R. Singh Research Article Pages: 67 - 74
Netuptake of sulphate and its transport to the shoot in tobacco plants fumigated with H2S or SO2 Cornelia HerschbachLuit J. de KokHeinz Rennenberg Research Article Pages: 75 - 84
A comparative account of the microbiological characteristics of soils under natural forest, grassland and cropfield from Eastern India P. PrasadS. BasuN. Behera Research Article Pages: 85 - 91
Heavy-metal uptake by crops from polluted river sediments covered by non-polluted topsoil W. van DrielB. van LuitW. Schuurmans Research Article Pages: 93 - 104
Heavy-metal uptake by crops from polluted river sediments covered by non-polluted topsoil M. van NoordwijkW. van DrielW. Schuurmans Research Article Pages: 105 - 113
Estimation of the influx and the radius of the depletion zone developing around a root during nutrient uptake K. M. SyringN. Claassen Research Article Pages: 115 - 123
Growth, radicle and root hair development ofDeschampsia flexuosa (L.) Trin. seedlings in relation to soil acidity Anna-Maj Balsberg-Påhlsson Research Article Pages: 125 - 132
Root surface area measurements based on adsorption and desorption of nitrite S. A. AnsariPramod KumarB. N. Gupta Research Article Pages: 133 - 137
A comparison of rooting environments in containers of different sizes J. TownendA. L. Dickinson Research Article Pages: 139 - 146
The use of fluorogenic substrates for measuring enzyme activity in peatlands C. FreemanG. LiskaM. A. Lock Research Article Pages: 147 - 152
Seasonal changes in production and nutrient content ofCynodon dactylon (L.) Pers. subjected to water deficits M. J. UtrillasL. AlegreE. Simon Short Communication Pages: 153 - 157