Does grazing mediate soil carbon and nitrogen accumulation beneath C4, perennial grasses along an environmental gradient? J.D. DernerD.D. BriskeT.W. Boutton OriginalPaper Pages: 147 - 156
The acetylene-induced decline in nitrogenase activity in root nodules of Elaeagnus angustifolia Gordon V. JohnsonChrista R. SchwintzerJohn D. Tjepkema OriginalPaper Pages: 157 - 161
Development of microtopography in a semi-arid grassland: Effects of disturbance size and soil texture Gustavo A. Martinez-TuranzasDebra P. CoffinIngrid C. Burke OriginalPaper Pages: 163 - 171
Nickel tolerance and copper - nickel co - tolerance in Mimulus guttatus from copper mine and serpentine habitats G.H. TilstoneM.R. Macnair OriginalPaper Pages: 173 - 180
Root hairs and phosphorus acquisition of wheat and barley cultivars Tara Singh GahooniaDebbie CareNiels Erik Nielsen OriginalPaper Pages: 181 - 188
Regulation of nitrogen fixation in infected cells of leguminous root nodules in relation to O2 supply F.J. Bergersen OriginalPaper Pages: 189 - 203
Effects of soil extracts from repeated plantation woodland of Chinese-fir on microbial activities and soil nitrogen mineralization dynamics Qishui Zhang OriginalPaper Pages: 205 - 212
Trophic interactions between bacterial-feeding nematodes in plant rhizospheres and the nematophagous fungus Hirsutella rhossiliensis to suppress Heterodera schachtii R.C. VenetteF.A.M. MostafaH. Ferris OriginalPaper Pages: 213 - 223
Soil organic carbon dynamics in cleared temperate forest spodosols converted to maize cropping Claudy JolivetDominique ArrouaysJean Lévèque OriginalPaper Pages: 225 - 231
The dependence of methane transport in rice plants on the root zone temperature Tatsuo HosonoIsamu Nouchi OriginalPaper Pages: 233 - 240
Spatial distribution of methane-oxidizing activity in a flooded rice soil S. KumaraswamyB. RamakrishnanN. Sethunathan OriginalPaper Pages: 241 - 248
Drought-induced changes in soil contact and hydraulic conductivity for roots of Opuntia ficus-indica with and without rhizosheaths Gretchen B. NorthPark S. Nobel OriginalPaper Pages: 249 - 258
Substrate conditions, foliar nutrients and the distributions of two canopy tree species in a Costa Rican secondary rain forest Bernal HerreraBryan Finegan OriginalPaper Pages: 259 - 267
Phosphate availability in combination with nitrate availability affects root yield and chicon yield and quality of Belgian endive (Cichorium intybus) Rafiqa AmézianeLaurent CassanAnis M. Limami OriginalPaper Pages: 269 - 277
Soil and solution chemistry under pasture and radiata pine in New Zealand R.L. ParfittH.J. PercivalL.F. Hill OriginalPaper Pages: 279 - 290
A large ephemeral release of nitrogen upon wetting of dry soil and corresponding root responses in the field Muyi CuiMartyn M. Caldwell OriginalPaper Pages: 291 - 299