Particle-size effect on the rate of nitrification of nitrogen fertilizer materials, with special reference to ammonium-fixing soils Hans Nõmmik OriginalPaper Pages: 181 - 200
Der Wasserhaushalt vonAvena sativa L. bei steigender Mineralvolldüngung Sigrun Jaeger OriginalPaper Pages: 201 - 212
Some critical comparisons of peat-sand and loam-based composts, with special reference to the interpretation of physical and chemical analyses A. C. BuntP. Adams OriginalPaper Pages: 213 - 221
Growth vigour of some Egyptian cotton variety seedlings in relation to selected rhizospheric microflora antagonistic toRhizoctonia solani Kuhn M. S. NaimA. A. El-Esawy OriginalPaper Pages: 222 - 227
Ethanol extraction of free amino acids from soil Richard G. GilbertJack Altman OriginalPaper Pages: 229 - 238
The relationship of oxalic acid to the translocation and utilization of calcium inNicotiana tabacum D. M. BrumagenA. J. Hiatt OriginalPaper Pages: 239 - 249
The contribution of white clover to a mixed upland sward D. Gareth Jones OriginalPaper Pages: 250 - 260
NaCl effects on growth and transpiration inSalicornia bigelovii a salt-marsh halophyte Kenneth L. Webb OriginalPaper Pages: 261 - 268
Sensitivity of Malayan isolates of Fusarium to soil fungistasis D. A. Griffiths OriginalPaper Pages: 269 - 278
Nitrogen stress in wheat — Its measurement and relation to leaf nitrogen E. A. N. Greenwood OriginalPaper Pages: 279 - 288
The availability of organic matter in dried and undried soil, estimated by an anaerobic respiration technique G. W. SkyringJ. P. Thompson OriginalPaper Pages: 289 - 298
The effect of varying nitrogen supplies on the content of amino acids in wheat grain I. LarsenJ. Dissing Nielsen OriginalPaper Pages: 299 - 308
The effect of spraying with DNOC (4,6-dinitro-o-cresol) on the growth of the roots and shoots of winter rye plants J. BruinsmaJ. J. Schuurman OriginalPaper Pages: 309 - 316
Effect of varying static and changing moisture levels during incubation on extractability of soil phosphate D. M. EkpeteA. H. Cornfield OriginalPaper Pages: 317 - 321
Toxic effects of carbowaxes (Polyethylene glycols) onPinus halepensis Mill. seedlings B. Leshem Short Communication Pages: 322 - 324
Nature of the calcium effect in phosphate uptake by barley roots A. H. Hyde Short Communication Pages: 328 - 332
Einfluß der mechanischen Zerkleinerung von Streulagenproben auf Nmin-Anhäufung und CO2-Produktion im Brutversuch H. W. Zöttl Short Communication Pages: 336 - 338
Growth and copper content of anatomical plant parts as influenced by copper supply and time R. H. MaierR. A. Cattani Short Communication Pages: 339 - 342