The root surface phosphatases ofEriophorum vaginatum: Effects of temperature, pH, substrate concentration and inorganic phosphorus Carolyn J. KroehlerArthur E. Linkins OriginalPaper Pages: 3 - 10
Effect of a phosphate solubilizing bacteria on maize growth and root exudation over four levels of labile phosphorus F. LaheurteJ. Berthelin OriginalPaper Pages: 11 - 17
Hydraulic resistance of two sorghums varying in drought resistance M. B. Kirkham OriginalPaper Pages: 19 - 24
Effect of salinity on phosphate accumulation and injury in soybean S. R. GrattanE. V. Maas OriginalPaper Pages: 25 - 32
Nitrogenase activity, hydrogen evolution and biomass production in different Casuarina symbioses Anita Sellstedt OriginalPaper Pages: 33 - 40
Characterization of organic matter from animal manures after digestion by earthworms F. PetrussiM. De NobiliP. Sequi OriginalPaper Pages: 41 - 46
Comparison of soil tests and leaf analysis as methods of diagnosing Zn deficiency in British Columbia apple orchards D. NeilsenP. B. HoypA. F. MacKenzie OriginalPaper Pages: 47 - 53
A comparison of the isotope recovery and difference methods for determining nitrogen fertilizer efficiency K. HarmsenJ. T. Moraghan OriginalPaper Pages: 55 - 67
A rapid non-destructive assay to quantify soybean nodule gas permeability P. R. WeiszT. R. Sinclair OriginalPaper Pages: 69 - 78
Nitrogen source effects on rhizosphere pH and nutrient accumulation by Pacific Northwest conifers B. A. RollwagenR. J. Zasoski OriginalPaper Pages: 79 - 86
Root turnover in a beech and a spruce stand of the Belgian Ardennes H. J. van PraagS. Sougnez-RemyG. Carletti OriginalPaper Pages: 87 - 103
The use of ion-exchange resin bags for measuring nutrient availability in an arid ecosystem Kate Lajtha OriginalPaper Pages: 105 - 111
Rhizobial ecology of the woody legumePsorothamnus spinosus in a Sonoran Desert Arroyo M. B. JenkinsR. A. VirginiaW. M. Jarrell OriginalPaper Pages: 113 - 120
The effect of pH on the uptake of cadmium by four plant species grown in flowing solution culture D. J. HatchL. H. P. JonesR. G. Burau OriginalPaper Pages: 121 - 126
Plant availability of applied and native boron in soils with diverse properties Ji-Yun JinD. C. MartensL. W. Zelazny OriginalPaper Pages: 127 - 132
The fate of nitrogen (15N) released from different plant materials during decomposition under field conditions Michael M. MüllerVeronica Sundman OriginalPaper Pages: 133 - 139
The fate of clover-derived nitrogen (15N) during decomposition under field conditions: Effects of soil type Michael M. Müller OriginalPaper Pages: 141 - 147
Release of carbon and nitrogen from decomposing roots of red clover as affected by liming of soil Michael M. MüllerBjörn Berg OriginalPaper Pages: 149 - 152