Assessment of residues of phosphate application in some soils of northern Nigeria W. B. Ipinmidun OriginalPaper Pages: 213 - 225
The mineral composition of the Robusta banana plant I. T. TwyfordD. Walmsley OriginalPaper Pages: 227 - 243
Manganese toxicity and marginal chlorosis of lettuce James VlamisD. E. Williams OriginalPaper Pages: 245 - 251
Survey of the matric water of various plant groups Hussian Al-SaadiHerman H. Wiebe OriginalPaper Pages: 253 - 261
The effects of humidity and cytokinin on growth and water relations of salt-stressed bean plants Jose TarQuinio PriscoJames W. O'Leary OriginalPaper Pages: 263 - 276
Bor-Toxizität, Bor-Aufnahme und Bor-Verteilung bei jungen gurkenpflanzen unter dem einflusz der N-Form D. von AltW. Schwarz OriginalPaper Pages: 277 - 283
Effect of soil and water salinity on tomato growth J. ShalhevetB. Yaron OriginalPaper Pages: 285 - 292
Nitrogen balance sheet of (NH4)2SO4-gypsum pellets and mixtures and ureaformaldehyde applied to corn in pots of sand A. Monem BalbaT. H. Sheta OriginalPaper Pages: 293 - 302
Soil phenolics and plant growth inhibition D. ChandramohanD. PurushothamanR. Kothandaraman OriginalPaper Pages: 303 - 308
The effect of pellet size on the ammonia loss from urea applied to forest soil Hans Nômmik OriginalPaper Pages: 309 - 318
Pectolytic enzymes in inoculated and uninoculated red clover seedlings P. M. Bonish OriginalPaper Pages: 319 - 328
Seasonal changes in symbiotic nitrogen fixation and haemoglobin content in nodules of peanuts J. SchiffmannRina Löbel OriginalPaper Pages: 329 - 340
Nitrogen balance studies for different Egyptian soils cropped with corn M. H. A. El-ShakweerA. S. Abdel-GhaffarM. A. Barakat OriginalPaper Pages: 341 - 349
Effect of flooding and cropping on the changes in the inorganic phosphate fractions in some rice soils M. A. SinglacharR. Samaniego OriginalPaper Pages: 351 - 359
Effects of applications of municipal compost on uptake of copper, zinc and boron by garden vegetables D. PurvesE. Jean Mackenzie OriginalPaper Pages: 361 - 371
The relationship of respiration in organic and mineral soil layers to soil chemical properties J. R. JorgensenC. G. Well OriginalPaper Pages: 373 - 387
The effects of applied N, K and Mg on the distribution of magnesium in the plant S. McIntoshP. CrooksK. Simpson OriginalPaper Pages: 389 - 397
Measurement of available phosphate content of some Spanish soils Teresa CrisantoC. D. Sutton OriginalPaper Pages: 399 - 412
Effects of aluminum, manganese, and lime on toxicity symptoms, nutrient composition, and yield of barley grown on a podzol soil Umesh C. GuptaJ. A. MacleodL. B. Macleod OriginalPaper Pages: 413 - 421
Differential susceptibility in some sorghum (Sorghum vulgar) genotypes to zinc deficiency in soil U. C. ShuklaS. K. AroraN. M. Safaya Short Communication Pages: 423 - 427
The uptake of Zn, Mn, Cu and B from spray mixtures by navel orange leaves R. O. BarnardW. J. FölscherP. C. J. Oberholzer Short Communication Pages: 429 - 432
Microbiological and biochemical effects of the application of bitumenous emulsions as soil conditioners J. P. VoetsM. MeerschmanW. Verstraete Short Communication Pages: 433 - 436
Ozone effects on growth of radish plants as influenced by nitrogen and phosphorus nutrition and by temperature D. P. OrmrodN. O. AdedipeG. Hofstra Short Communication Pages: 437 - 439
Organic acids in the rhizosphere of Zea mays and Phaseolus aureus plants R. P. PareekA. C. Gaur Short Communication Pages: 441 - 444
Nitrogen fixation in decaying chestnut logs Barney W. CornabyJack B. Waide Short Communication Pages: 445 - 448
Inhibition of Rhizobium in vitro by non-nodulating legume roots and root extracts V. Ranga RaoN. S. Subba RaoK. G. Mukerji Short Communication Pages: 449 - 452
Effect of steam sterilization of soil on two desert plant species A. WallaceE. F. FrolichG. V. Alexander Short Communication Pages: 453 - 456
Salt uptake and salt tolerance by sunflower J. G. BhattK. N. Indirakutty Short Communication Pages: 457 - 460
Azotobacter chroococcum in the phyllosphere of water hyacinth (Eichhornia crassipes Mort. Solms) V. IswaranA. SenRajne Apte Short Communication Pages: 461 - 463
Soil organic matter and phosphorus relationships under tropical forests Eugene Brams Short Communication Pages: 465 - 468