Some microbiological aspects of surface and buried soils on Mt. Kenya, East Africa M. G. BoyerW. C. Mahaney OriginalPaper Pages: 309 - 319
Effect of soil moisture and phosphate level on root hair growth of corn roots A. D. MackayS. A. Barber OriginalPaper Pages: 321 - 331
Growth responses and vascular plugging of citrus inoculated with rhizobacteria and xylem-resident bacteria John M. GardnerJ. L. ChandlerA. W. Feldman OriginalPaper Pages: 333 - 345
Effects of rhizospheric bacteria on wheat yield under field conditions E. MilletY. AviviM. Feldman OriginalPaper Pages: 347 - 355
Effects of plant breeding and selection on yields and nitrogen fixation in soybeans under two soil nitrogen regimes F. J. CoaleJ. J. MeisingerW. J. Wiebold OriginalPaper Pages: 357 - 367
Drought resistance of wheat plants inoculated with vesicular-arbuscular mycorrhizae J. R. EllisH. J. LarsenM. G. Boosalis OriginalPaper Pages: 369 - 378
Effect of complete plant submergence at different growth stages on grain yield, yield components and nutrient content of rice M. Devender ReddyB. N. Mittra OriginalPaper Pages: 379 - 386
Production of B-group vitamins by mycorrhizal fungi and actinomycetes isolated from the root zone of pine (Pinus sylvestris L.) E. StrzelczykU. Leniarska OriginalPaper Pages: 387 - 394
Effects of soil pH and associated cations on growth of apple trees planted in old orchard soil P. B. HoytG. H. Neilsen OriginalPaper Pages: 395 - 401
The importance of initial exchangeable ammonium in the nitrogen nutrition of lowland rice soils H. G. SchönK. MengelS. K. De Datta OriginalPaper Pages: 403 - 413
A single plant technique for field studies of distribution of32P-labelled phosphate between plant and soil pools J. K. Martin OriginalPaper Pages: 415 - 423
Modelling growth responses of soil nitrifiers to additions of ammonium sulphate and ammonium chloride P. R. DarrahP. H. NyeR. E. White OriginalPaper Pages: 425 - 439
Nitrogen-induced boron deficiency in lucerne I. R. WillettP. JakobsenB. A. Zarcinas Short Communications Pages: 443 - 446
A new dimension to observations in minirhizotrons: A stereoscopic view on root photographs Meine van NoordwijkAnton de JagerJohan Floris Short Communications Pages: 447 - 453