Effect of low root temperature on symbiotic nitrogen fixation and competitive nodulation of Onobrychis viciifolia (sainfoin) by strains of arctic and temperate rhizobia D. PrévostE. S. P. Bromfield OriginalPaper Pages: 161 - 164
Effects of biotechnology byproducts and organic acids on nitrification in soils S. V. KarmarkarM. A. Tabatabai OriginalPaper Pages: 165 - 169
Competitiveness of Rhizobium leguminosarum bv. phaseoli strains in relation to environmental stress and plant defense mechanisms A. B. WolffW. StreitD. Werner OriginalPaper Pages: 170 - 176
Effects of phosphate fertilizer on biomass production and N2(C2H2) fixation by pot-grown Ulex gallii Planchon in a forest soil P. O'TooleD. G. CahalaneE. P. Farrell OriginalPaper Pages: 177 - 181
Immobilization of nitrogen from urea and plant residues in a ferrallitic soil: Laboratory experiments and study by size-fractionation C. FrancoisC. FellerJ. -P. Boudot OriginalPaper Pages: 182 - 188
Phosphatase activities of pasture plants and soils: Relationship with plant productivity and soil P fertility indices T. W. SpeirJ. C. Cowling OriginalPaper Pages: 189 - 194
Volatile fatty acid production with alfalfa (Medicago sativa) and glucose in denitrifying soil at different temperatures E. G. BeauchampS. Dorland OriginalPaper Pages: 195 - 198
Nitrogen mineralization in soil amended with sewage sludge and fly ash M. A. GarauJ. L. DalmauM. T. Felipó OriginalPaper Pages: 199 - 201
Leaf-litter consumption and assimilation by juveniles of Lumbricus terrestris L. (Oligochaeta, Lumbricidae) under different environmental conditions O. Daniel OriginalPaper Pages: 202 - 208
Weight response to the soil water potential of the earthworm Aporrectodea longa A. KretzschmarC. Bruchou OriginalPaper Pages: 209 - 212
Soil management problems in multiply cropped paddy fields in China Shi-ye Li OriginalPaper Pages: 213 - 216
