Immobilization and availability of N and P in the forest floors of fertilized Rocky Mountain coniferous forests C. E. PrescottJ. P. CorbinD. Parkinson OriginalPaper Pages: 1 - 10
Some chemical and physical factors affecting the rate and dunamics of nitrification in urine-affected soil R. M. MonaghanD. Barraclough OriginalPaper Pages: 11 - 18
Effects of gypsum on the uptake, assimilation and cycling of 15N-labelled ammonium and nitrate-N by perennial ryegrass J. S. Bailey OriginalPaper Pages: 19 - 31
Root biomass changes after drainage and fertilization of a low-shrub pine bog Finn H. BrÆkke OriginalPaper Pages: 33 - 43
Effects of variations in soil water potential, depth of N placement, and cultivar on postanthesis N uptake by wheat S. B. WuestK. G. Cassman OriginalPaper Pages: 45 - 53
Plant-induced changes in the redox potentials of rice rhizospheres H. FlessaW. R. Fischer OriginalPaper Pages: 55 - 60
Prediction of long-term fertilizer nitrogen requirements of maize in the tropics using a nitrogen balance model D. L. OsmondD. J. LathwellS. J. Riha OriginalPaper Pages: 61 - 70
Impact of salinity stress on soil-borne fungi of sugarbeet M. S. El-AbyadAmira M. Abu-TalebMary S. Khalil OriginalPaper Pages: 75 - 83
Growth of seedling roots in response to external osmotic stress by polyethylene glycol 20,000 S. A. MaterecheraA. R. DexterJ. M. Kirby OriginalPaper Pages: 85 - 91
Soil phosphorus levels needed for equal P uptake from four soils with different water contents at the same water potential M. S. CoxS. A. Barber OriginalPaper Pages: 93 - 98
Effects of long-term barley monoculture on plant-affecting soil microbiota Stig OlssonBerndt Gerhardson OriginalPaper Pages: 99 - 108
Direct determination of total soil carbohydrate content I V O SafaříkHana Šantrůčková OriginalPaper Pages: 109 - 114
Nitrogen availability in radiata pine plantations on former pasture sites in southern New South Wales Elaine M. Birk OriginalPaper Pages: 115 - 125
Effects of chemical composition on nitrogen mineralization from green manures of seven tropical leguminous trees Karen A. OglesbyJames H. Fownes OriginalPaper Pages: 127 - 132
Role of Scutellonema clathricaudatum in etiology of groundnut growth variability in Niger S. B. SharmaF. WaliyarB. J. Ndunguru OriginalPaper Pages: 133 - 139
Some properties of ferric citrate relevant to the iron nutrition of plants H. Frits BienfaitMarco R. Scheffers Short Communication Pages: 141 - 144
Inhibition of ammonium sulphate nitrification by methylpyrazol in a highly calcareous soil P. I. Orphanos Short Communication Pages: 145 - 147
Mycorrhizal status of herb-layer plants in a fertilized oak-pine forest K. TurnauJ. MitkaA. Kedzierska Short Communication Pages: 148 - 152