Sulphur uptake by ryegrass and its relationship to inorganic and organic sulphur levels and sulphatase activity in soil R. LeeT. W. Speir OriginalPaper Pages: 407 - 425
Fate of lead in the soil and its effects onPinus halepensis George Nakos Lead Pollution Pages: 427 - 443
Determination of categories of soil nitrogen by electro-ultrafiltration (EUF) K. NémethI. Q. MakhdumH. Beringer OriginalPaper Pages: 445 - 453
Organic solid wastes from urban environment as iron sources for sorghum Ali A. ParsaArthur Wallace OriginalPaper Pages: 455 - 461
Interactions ofRhizobium japonicum strains in soybean nodules and their contribution to nitrogen fixation Balappa K. PugashettiGeorge H. Wagner OriginalPaper Pages: 463 - 475
Effects of salinity, N-nutrition and humidity on photosynthesis and protein metabolism ofChloris gayana Kunth Adiva Shomer-IlanY. B. SamishY. Waisel OriginalPaper Pages: 477 - 486
A comparison of ammoniacal and nitrate nutrition of perennial ryegrass through a thermodynamic model K. R. MiddletonG. S. Smith OriginalPaper Pages: 487 - 504
Photosynthetic carbon fixation in iron-chlorotic and recovered green sugarcane leaves G. R. NaikG. V. Joshi OriginalPaper Pages: 505 - 511
Comparison of isotope techniques and non-nodulating isolines to study the effect of ammonium fertilization on dinitrogen fixation in soybean,Glycine max Alaides P. RuschelP. B. VoseE. Salati OriginalPaper Pages: 513 - 525
A sensitive method for continuous measurement of the carbon dioxide evolution rate of soil samples J. L. M. Huntjens Short Communications Pages: 529 - 534
Copper and cobalt uptake by metallophytes from Zaïre R. S. MorrisonR. R. BrooksF. Malaisse Short Communications Pages: 535 - 539
Effect of different soil types, pH and phosphorus levels on the wheat seedling and the incidence ofPythium graminicolum L. P. Kauraw Short Communications Pages: 551 - 557
Influence of soil pH on the soybean-endomycorrhiza symbiosis Horace D. SkipperGarriet W. Smith Short Communications Pages: 559 - 563