Plant and Soil 125: 303-305, 1990.

Contents of Volume 125 1990

Volume 125, No. 1

J. Standley, G. A. Thomas, H. M. Hunter, A.A. Webb and S. Berthelsen, Decreases over seven years in subsoil nitrate in a Vertisol with grain sorghum and grass 1

J. R. Cumming and L.H. Weinstein, Aluminum-mycorrhizal interactions in the physiology of pitch pine seedlings 7

P. H. Brown, R. M. Welch and J. T. Madison, Effect of nickel deficiency on soluble anion, amino acid, and nitrogen levels in barley 19

P. I. Orphanos and C. Metochis, Nitrogen fertigation of flue-cured tobacco in a Mediterranean environment 29

P. F. White and A. D. Robson, Response of lupins (Lupinus angustifolius L.) and peas (Pisum sativum L.) to Fe deficiency induced by low concentrations of Fe in solution or by addition of HCO:3 39

M. J. Trinick and P. A. Hadobas, Nodulation of Trifolium repens with modified Bradyrhizobium and the nodulation of Parasponia with Rhizobium leguminosarum biovar trifolii 49

J. F. Lembrechts, J. H. van Ginkel and G. M. Desmet, Comparative study on the uptake of strontium-85 from nutrient solutions and potted soils by lettuce 63

M. Bradbury and R. Ahmad, The effect of silicon on the growth of Prosopis juliflora growing in saline soil 71

S. Lodha, B. K. Mathur and K. R. Solanki, Factors influencing population dynamics of Macrophomina phaseolina in arid soils 75

S. K. A. Danso, J. Kapuya and G. Hardarson, Nitrogen fixation and growth of soybean as in. fluenced by varying the methods of inoculation with Bradyrhizobium japonicum 81

S. K. A. Danso and K. S. Kumarasinghe, Assessment of potential sources of error in nitrogen fixation measurements by the nitrogen-15 isotope dilution technique 87

T. Becquer, D. Merlet, J.-P. Boudot, J. Rouiller and F. Gras, Nitrification and nitrate uptake: Leaching balance in a declined forest ecosystem in eastern France 95

R. B. Thompson, B. F. Pain and D. R. Lockyer, Ammonia volatilization from cattle slurry following surface application to grassland. I. Influence of mechanical separation, changes in chemical composition during volatilization and the presence of the grass sward 109

R. B. Thompson, B. F. Pain and Y. J. Rees, Ammonia volatilization from cattle slurry following surface application to grassland. II. Influence of application rate, wind speed and applying slurry in narrow bands 119

A. J. M. Stams, I. J. Lutke Schipholt, E. C. L. Marnette, B. Beemsterboer and J. R. W. Woittiez, Conversion of 15N_ammonium in forest soils 129

A. J. M. Stams and E. C. L. Marnette, Investigation of nitrification in forest soils with soil percola- tion columns 135

Short communications A. J. M. Stams and I. J. Lutke Schipholt, Nitrate accumulation in leaves of vegetation of a forested

ecosystem receiving high amounts of atmospheric ammonium sulfate 143 V. P. Potty, Use of lignite slurry as inoculating medium for vesicular arbuscular mycorrhiza in

chinese potato (Coleus parviflorus) 146 M. A. Line, Identification of nitrogen-fixing enterobacteria from living Sassafras (Atherosperma

moschatum Labill.) trees 149 S. K. Nair, C. K. Peethambaran, D. Geetha, K. Nayar and K. I. Wilson, Effect of soil solarization

on nodulation, infection by mycorrhizal fungi and yield of cowpea 153

304

W. L. Bland and M. A. Mesarch, Counting error in the line-intercept method of measuring root length 155

Volume 125 No. 2r

L. A. Mackie-Dawson, P. Millard and D. Robinson, Nutrient uptake by potato crops grown on two soils with contrasting physical properties 159

G. Cuenca, R. Herrera and E. Medina, Aluminium tolerance in trees of a tropical cloud forest 169 M. S. Heakal, A. S. Modaihsh, A. S. Mashhady and A. I. Metwally, Combined effects of leaching

fraction, salinity, and potassium content of waters on growth and water-use efficiency of wheat and barley 177

W. M. Jarrell and R. A. Virginia, Response of mesquite to nitrate and salinity in a simulated phreatic environment: Water use, dry matter and mineral nutrient accumulation 185

M. D. A. Bolland and B. H. Paynter, Increasing phosphorus concentration in seed of annual pasture legume species increases herbage and seed yields 197

N. Gajendiran and A. Mahadevan, Growth of Rhizobium sp. in the presence of catechol 207 C. W. Honeycutt and L. J. Potaro, Field evaluation of heat units for predicting crop residue carbon

and nitrogen mineralization 213 C. B. Christianson, A. Bationo, J. Henao and P. L. G. Vlek, Fate and efficiency of N fertilizers

applied to pearl millet in Niger 221 D. R. Fravel, R. D. Lumsden and D. P. Roberts, In situ visualization of the biocontrol rhizobac-

terium Enterobacter cloacae with bioluminescence 233 F. J. M. Sung and W. S. Lo, Growth responses of rice in ammonium-based nutrient solution with

variable calcium supply 239 N. E. Marcar and A. Termaat, Effects of root-zone solutes on Eucalyptus camaldulensis and

Eucalyptus bicostata seedlings: Responses to Na+, Mg2+ and CI- 245 F. Azam, Comparative effects of organic and inorganic nitrogen sources applied to a flooded soil

on rice yield and availability of N 255 A. E. Lugo, E. Cuevas and M. J. Sanchez, Nutrients and mass in litter and top soil of ten tropical

tree plantations 263

Short communications F. C. Zoon, F. J. Hage and A. de Zwart, A device for automatic soil moisture control and registra-

tion of water use in pot experiments 281 G. J. Fennington and T. A. Hughes, Erwinia pelgene homology survey in selected bacteria 285 I. J. Fernandez, G. B. Lawrence and K. J. Richards, Characteristics of foliar chemistry in a

commercial spruce-fir stand of northern New England, USA 288 W. D. Temple and A. A. Bomke, The short-term effects of fresh kelp (Macrocystis integrifolia) on

physical properties of a fine-textured soil 293 S. A. Ansari, Samiullah and M. M. R. K. Afridi, Enhancement of leaf nitrogen, phosphorus and

potassium and seed protein in Vigna radiata by pyridoxine application 296

299 Instructions to authors

Author index

Afridi, M.M.R.K., 296 Ahmad, R., 71 Ansari, S.A. 296 Azam, F., 255 Bationo, A., 221 Becquer, T., 95 Beemsterboer, B., 129 Berthelsen, S., 1 Bland, W.L., 155 Bolland, M.D.A., 197 Bomke, A.A., 293 Boudot, J.-P., 95 Bradbury, M., 71 Brown, P.H., 19 Christianson, C.B., 221 Cuenca, G., 169 Cuevas, E., 263 Cumming, J.R., 7 Danso, S.K.A., 81,87 De Zwart, A., 281 Desmet, G.M., 63 Fennington, G.J., 285 Fernandez, I.J., 288 Fravel, D.R., 233 Gajendiran, N., 207 Geetha, D., 153 Grass, F., 95 Hadobas, P.A., 49 Hage, F.J., 281 Hardarson, G., 81 Heakal, M.S., 177 Henao, J., 221 Herrera, R., 169

Honeycutt, C.W., 213 Hughes, T.A., 285 Hunter, H.M., 1 Jarrell, W.M., 185 Kapuya, J., 81 Kumarasinghe, K.S., 87 Lawrence, G.B., 288 Lembrechts, J.F., 63 Line, M.A., 149 Lo, W.S., 239 Lockyer, D.R., 109 Lodha, S., 75 Lugo, A.E., 263 Lumsden, R.D., 233 Lutke Schipholt, I.J., 129, 143 Mackie-Dawson, L.A., 159 Madison, J.T., 19 Mahadevan, A., 207 Marcar, N.E., 245 Marnette, E.C.L., 129, 135 Mashhady, A.S., 177 Mathur, B.K., 75 Medina, E., 169 Merlet, D., 95 Mesarch, M.A., 155 Metochis, C., 29 Metwally, A.I., 177 Millard, P., 159 Modaihsh, A.S., 177 Nair, S.K., 153 Nayar, K., 153 Orphanos, P.I., 29 Pain, B.F., 109, 119

Paynter, B.H., 197 Peethambaran, C.K., 153 Potaro, L.J., 213 Potty, V.P., 146 Rees, Y.J., 119 Richards, K.J., 288 Roberts, D.P., 233 Robinson, D., 159 Robson, A.D., 39 Rouiller, J. 95 Samiullah, 296 Sanchez, M.J., 263 Solanki, K.R., 75 Stams, A.J.M., 129, 135, 143 Standley, J., 1 Sung, F.J.M., 239 Temple, W.D., 293 Termaat, A., 245 Thomas, G.A., 1 Thompson, R.B., 109, 119 Trinick, M.J., 49 Van Ginkel, J.H., 63 Virginia, R.A., 185 Vlek, P.L.G., 221 Webb, A.A., 1 Weinstein, L.H., 7 Welch, R.M., 19 White, P.F., 39 Wilson, K.I., 153 Woittiez, J.R.W., 129 Zoon, F.C., 281

305