Interlaboratory variability in the chemical analysis of leaf samples J. G. A. La BastideC. P. Van Goor OriginalPaper Pages: 1 - 7
Nitrification of ammonium sulphate and urea in an acid red yellow podzolic tea soil in Sri Lanka in relation to soil fertility S. SandanamS. KrishnapillaiJ. Sabaratnam OriginalPaper Pages: 9 - 22
The effect of manganese-oxidizing bacteria and pH on the availability of manganous ions and manganese oxides to oats in nutrient solutions S. M. Bromfield OriginalPaper Pages: 23 - 39
The effect of humic acid and Na2EDDHA on the uptake of Cu, Fe, and Zn by barley in sand culture A. M. ElgalaA. I. MetwallyR. A. Khalil OriginalPaper Pages: 41 - 48
Nitrogen transformation in soil during humification of straw labelled with15N D. Wójcik-Wojtkowiak OriginalPaper Pages: 49 - 55
Grain sorghum (Sorghum bicolor Pers.) responses to organic iron on calcareous soils A. A. SalardiniL. S. Murphy OriginalPaper Pages: 57 - 70
Manganese deficiency in sugar beet and the incorporation of manganese in the coating of pelleted seed R. F. FarleyA. P. Draycott OriginalPaper Pages: 71 - 83
Relationship between mineral nutrition of muskmelon and development of downy mildew caused byPseudoperonospora cubensis S. S. BainsJ. S. Jhooty OriginalPaper Pages: 85 - 90
The influence of soil moisture on water potential, transpiration and photosynthesis of conifer seedlings W. M. HavranekU. Benecke OriginalPaper Pages: 91 - 103
Urease activity and its Michaelis constant for soil systems Viraj BeriK. P. GoswamiS. S. Brar OriginalPaper Pages: 105 - 115
Sign-of-charge of species of Cu, Cd and Zn extracted from sewage sludge, and effect of plants J. V. LagerwerffR. P. Milberg OriginalPaper Pages: 117 - 125
Differences in root and shoot development of tomato (Lycopersicon esculentum L.) varieties across contrasting soil environments Sherry L. GulmonNeil C. Turner OriginalPaper Pages: 127 - 136
Tomato yields in relation to the nitrogen, potassium and magnesium status of the plants and of the peat substrate P. AdamsC. J. GravesG. W. Winsor OriginalPaper Pages: 137 - 148
The growth and nutrient uptake of winter wheat M. B. PageJean L. SmalleyO. Talibudeen OriginalPaper Pages: 149 - 160
Effects of film-forming and silicone antitranspirants on four herbaceous plant species Jay E. AndersonFrank Kreith OriginalPaper Pages: 161 - 173
Efficacy of urea spray for wheat crop under irrigated conditions in Iraq K. I MosluhJagdish SethAbdul K. K. Rashid Short Communication Pages: 175 - 178
Effect of mercuric chloride on carbon mineralization in soils E. R. LandaS. C. Fang Short Communication Pages: 179 - 183
Soil waterlogging, root rot and conifer windthrow: oxygen deficiency or phytoxicity? P. L. SandersonW. Armstrong Short Communication Pages: 185 - 190
A modified sulphur medium for the isolation of sulphur-oxidizing fungi M. Wainwright Short Communication Pages: 191 - 193
The effect of pH on nodulation and growth ofCoriaria myrtifolia L. A. CañizoC. MiguelC. Rodriguez-Barrueco Short Communication Pages: 195 - 198
Overcoming salinity inhibition of sorghum seed germination by hydration-dehydration treatment J. T. PriscoG. F. SoutoL. G. Rebouças Ferreira Short Communication Pages: 199 - 206
Nitrate determination in an oxisol using K2SO4 extraction and the nitrate-specific ion electrode A. S. BlackS. A. Waring Short Communication Pages: 207 - 211