Effect of fertilization on exudation, dehydrogenase activity, iron-reducing populations and Fe++ formation in the rhizosphere of rice (Oryza sativa L.) in relation to iron toxicity G. BenckiserS. SantiagoJ. C. G. Ottow OriginalPaper Pages: 305 - 316
Short-term and long-term effects of cadmium, chromium, copper, nickel, lead and zinc on soil microbial respiration in relation to abiotic soil factors P. DoelmanL. Haanstra OriginalPaper Pages: 317 - 327
Analysis of factors affectingin situ nitrogenase (C2H2) activity ofGalega orientalis, Trifolium pratense andMedicago sativa in temperate conditions Kristina Lindström OriginalPaper Pages: 329 - 341
Litterfall and nutrient returns in red alder stands in western Washington M. A. RadwanConstance A. HarringtonJ. M. Kraft OriginalPaper Pages: 343 - 351
Effect of lime additions to acid strip-mine spoil on survival, growth and nitrogen fixation (acetylene reduction) of several woody legume and actinomycete-nodulated species D. L. HensleyP. L. Carpenter OriginalPaper Pages: 353 - 367
Yield and crop parameters of wetland rice as influenced by soil and fertilizer nitrogen N. I. BhuiyanE. T. CrasswellD. R. Bouldin OriginalPaper Pages: 369 - 381
Observations on the ultrastructure ofFrankia sp. in root nodules ofDatisca cannabina L. Fauzia HafeezAntoon D. L. AkkermansAshraf H. Chaudhary OriginalPaper Pages: 383 - 402
Interactions between vesicular-arbuscular mycorrhizal fungi and asparagus R. Blaine HusseyR. L. PetersonH. Tiessen OriginalPaper Pages: 403 - 416
Assessment of some extractants for available zinc in relation to response of rice to applied zinc in Sub-Himalayan hill and forest soils R. SakalA. P. SinghR. B. Sinia OriginalPaper Pages: 417 - 428
Effects of soil acidity on nodulation ofAlnus glutinosa and viability ofFrankia A. P. GriffithsL. H. McCormick OriginalPaper Pages: 429 - 434
Effect of soil acidity and saturating cation on adsorption of urea in soil M. Subba RaoN. Ahmad Short Communications Pages: 437 - 439
The effect of growth regulators on root cation exchange capacity of young clonal tea plants G. S. ChamuahS. K. Dey Short Communications Pages: 441 - 444
Electron microprobe X-ray microanalysis of diseased coconut (Cocos nucifera) roots C. C. BiddappaS. Rober Cecil Short Communications Pages: 445 - 447
Some modification in the assay of Fe2+ in 1–10, o-phenanthroline extracts of fresh plant tissues J. C. KatyalB. D. Sharma Short Communications Pages: 449 - 450