Thermocouple psychrometer for in situ leaf water potential determinations Ray W. BrownWalter T. McDonough OriginalPaper Pages: 5 - 10
Effects of sulpha drugs on nitrification of urea in soil Rajendra PrasadR. N. S. Reddy OriginalPaper Pages: 11 - 16
Microbial abundance in the rhizosphere: A computer model E. I. NewmanA. Watson OriginalPaper Pages: 17 - 56
Ecological aspects of nitrogen fixation by Purshia tridentata David A. DaltonDonald B. Zobel OriginalPaper Pages: 57 - 80
Effect of ammonium on uptake of phosphorus, potassium, calcium and magnesium by intact soybean plants Antoni J. RayarTang van Hai OriginalPaper Pages: 81 - 87
High and low molecular weight fractions of humic and fulvic acids K. H. Tan OriginalPaper Pages: 89 - 101
Growth of scots pine under nutritional and climatic stress H. G. MillerJ. D. MillerW. O. Binns OriginalPaper Pages: 103 - 114
Regrowth of western wheatgrass utilizing 14C-labeled assimilates stored in belowground parts U. G. Bokhari OriginalPaper Pages: 115 - 127
A comparison of the effect of different sewage sludges on young barley P. H. T. BeckettR. D. DavisP. Brindley OriginalPaper Pages: 129 - 141
Reassociation of a modified mycorrhiza with the host plant roots (Pinus radiata) and the transfer of acetylene reduction activity K. L. GilesH. C. M. Whitehead OriginalPaper Pages: 143 - 152
Nitrogen accumulation in kaolin mining wastes in cornwall I. Natural communities W. S. DancerJ. F. HandleyA. D. Bradshaw OriginalPaper Pages: 153 - 167
Reversal of adverse effects of heavy ammonium sulphate application on growth and nutrient status of a kikuyu pasture A. S. AwadD. G. Edwards OriginalPaper Pages: 169 - 183
Studies with antitranspirants on tea (Camellia sinensis L.) S. NagarajahG. B. Ratnassoriya OriginalPaper Pages: 185 - 197
Some effects of varied calcium nutrition on the growth and composition of tomato plants D. A. Hall OriginalPaper Pages: 199 - 211
The effects of metal ions on the root surface phosphatase activity of grasses differing in tolerance to serpentine soil I. R. WillettT. Batey OriginalPaper Pages: 213 - 221
Physiological studies on salinity VI. Changes in water content and mineral composition of some plants over a range of salinity stresses M. M. D. Heikal OriginalPaper Pages: 223 - 232
A possible role of allantion and the influence of nodulation on its production in soybean plants S. FujiharaK. YamamotoM. Yamaguchi OriginalPaper Pages: 233 - 242
The influence of calcium deficiency on the translocation of photosynthetically fixed 14C in soybeans D. R. GossettD. B. EgliJ. E. Leggett OriginalPaper Pages: 243 - 251
Effects of pesticides, lime and other amendments on soil ethylene M. WainwrightC. G. Kowalenko Short Communication Pages: 253 - 258