Symbiotic N2 fixation in pea and field bean estimated by15N fertilizer dilution in field experiments with barley as a reference crop E. S. Jensen OriginalPaper Pages: 3 - 13
The effect of root temperature on growth of curled parsley Ingrid M. EidstenHans R. Gislerød OriginalPaper Pages: 23 - 28
Distribution du sélénium et de seize éléments dans les différents organes deTrifolium repens M. P. Arvy OriginalPaper Pages: 29 - 36
Nutrient and growth interactions in soybeans colonized withGlomus fasciculatum andRhizobium japonicum R. S. PacovskyG. FullerE. A. Paul OriginalPaper Pages: 37 - 45
Relationship between probable dominant phosphate compound in soil and phosphorus availability to plants A. Y. AdepojuP. F. PrattS. V. Mattigod OriginalPaper Pages: 47 - 54
Adaptation of red clover rhizobia to low temperatures Päivi LipsanenKristina Lindström OriginalPaper Pages: 55 - 62
Soil-sodicity-induced zinc deficiency in maize N. K. MehrotraV. K. KhannaS. C. Agarwala OriginalPaper Pages: 63 - 71
The simple open soil method of measuring urea volatilisation losses Chan Khoon San OriginalPaper Pages: 73 - 79
A fluorimetric method for measuring the activity of soil enzymes P. R. DarrahP. J. Harris OriginalPaper Pages: 81 - 88
Crop uptake and leaching losses of15N labelled fertilizer nitrogen in relation to waterlogging of clay and sandy loam soils C. P. WebsterR. K. BelfordR. Q. Cannell OriginalPaper Pages: 89 - 101
Effect of flooding and temperature regime on growth and stomatal resistance ofBetula platyphylla var.japonica seedlings H. TsukaharaT. T. Kozlowski OriginalPaper Pages: 103 - 112
Heterotrophic nitrogen fixation (C2H2 reduction) as influenced by phosphorus application in paddy soils V. Rajaramamohan RaoJ. L. N. RaoT. K. Adhya OriginalPaper Pages: 125 - 132
A model (WHTROOT) which synchronizes root growth and development with shoot development for winter wheat J. R. PorterBetty KlepperR. K. Belford OriginalPaper Pages: 133 - 145
Efficiency of nitrogen applied to barley as basal dressing of ammonium sulphate or as topdressing of urea and ammonium nitrate in a semiarid region P. I. Orphanos Short Communications Pages: 147 - 152
Nitrification and mineralization potentials in a limed Ultisol in the humid tropics Yogesh AroraK. MulongoyA. S. R. Juo Short Communications Pages: 153 - 157