Some factors affecting the mineralization of organic sulphur in soils C. H. Williams OriginalPaper Pages: 205 - 223
Root-zone temperature effects on the early development of maize Eric G. BeauchampD. J. Lathwell OriginalPaper Pages: 224 - 234
Sulfur content of alfalfa in relation to growth in filtered and unfiltered air Albert UlrichM. A. TabatabaiC. M. Johnson OriginalPaper Pages: 235 - 252
The production of a phytotoxin, nectrolide, by some root-surface isolates ofCylindrocarpon radicicola, Wr. G. EvansJ. B. CartwrightN. H. White OriginalPaper Pages: 253 - 260
Forms of organic nitrogen in clay-amended sand soil J. ColomA. R. Wolcott OriginalPaper Pages: 261 - 268
Inorganic soil phosphate fractions as related to soil-test values by common methods P. K. Khanna OriginalPaper Pages: 277 - 284
Effect of associating anions on phosphorus retention in soil D. L. DebN. P. Datta OriginalPaper Pages: 303 - 316
Root exudates of the rice plant in relation to akagare, a physiological disorder of rice I. C. Mac RaeTeresita F. Castro OriginalPaper Pages: 317 - 323
Behaviour of photosynthetic products associated with growth and grain production in the rice plant Shen LianA. Tanaka OriginalPaper Pages: 333 - 347
Nodulation and nitrogen-fixation byHippophaƫ rhamnoides L. in the field W. D. P. StewartM. C. Pearson OriginalPaper Pages: 348 - 360
Studies on nutrition of Indian cereals O. N. MehrotraN. S. SinhaR. D. L. Srivastava OriginalPaper Pages: 361 - 368
The influence of foliar and substrate application of manganese on cotton H. E. JohamJ. V. Amin OriginalPaper Pages: 369 - 379
Contamination of urban garden soils with copper, boron, and lead D. Purves Short Communication Pages: 380 - 382
Extraction of triacontyl stearate from a soil F. L. HimesC. Bloomfield Short Communication Pages: 383 - 384
Counting emissions from potassium-42 in plant tissue with a liquid scintillation spectrometer W. F. NuttallA. L. CarterB. P. Warkentin Short Communication Pages: 385 - 388
A method for studying spatial relationships between the root systems of two neighbouring plants M. LitavJohn L. Harper Short Communication Pages: 389 - 392
An improved method for assessing soil-fungus population density R. Rodriguez-Kabana Short Communication Pages: 393 - 396