The effect of limestone, molybdenum and incubation upon the extractable molybdenum in soils of eastern Canada Umesh C. Gupta Short Communication Pages: 497 - 500
Haemoglobin determination and its value as an early indication of peanut rhizobium efficiency J. SchiffmannRina Löbel OriginalPaper Pages: 501 - 512
Effect of several herbicides on bacterial populations and activity and the persistence of these herbicides in soil D. A. van SchrevenD. J. LindenberghAlie Koridon OriginalPaper Pages: 513 - 532
Transformation of inorganic phosphorus in flooded soils under rice cropping A. Islam OriginalPaper Pages: 533 - 544
The supply of nutrient ions by diffusion to plant roots in soil M. C. DrewP. H. Nye OriginalPaper Pages: 545 - 563
Isolation from soil of phenol-utilizing organisms and metabolic studies on the pathways of phenol degradation Janos M. VargaHalina Y. Neujahr OriginalPaper Pages: 565 - 571
Nitrogen uptake of plants affected by windbreaks S. R. H. ShahY. P. Kalra OriginalPaper Pages: 573 - 580
Non-exchangeable binding of ammonium and amino nitrogen by Norway spruce raw humus Hans Nõmmik OriginalPaper Pages: 581 - 595
Untersuchungen zur Aufnahme und Umwandlung C14-markierter Phenole durch die Pflanze R. KastoriH. HarmsK. Haider OriginalPaper Pages: 597 - 611
Differential response of soil microflora to diazinon Hope RobsonHaim B. Gunner OriginalPaper Pages: 613 - 621
Comparative accumulation of manganese and boron in barley tissues James VlamisD. E. Williams OriginalPaper Pages: 623 - 628
Leaching losses of nitrogen and potassium in polders reclaimed from Lake Ijssel D. A. Van Schreven OriginalPaper Pages: 629 - 643
Studies on methods for determining varietal utilization of nutrients Else Boken OriginalPaper Pages: 645 - 652
The effect of adding two contrasting green manure materials to soils of different texture on the uptake of nitrogen by S24 ryegrass W. S. Wilson OriginalPaper Pages: 653 - 660
Changes in the rhizosphere microflora of maize seedlings by pretreatment of roots with hormones and urea T. B. AnilkumarB. P. Chakravarti OriginalPaper Pages: 679 - 684
Effects of copper deficiency on root nodules of subterranean clover B. CartwrightE. G. Hallsworth OriginalPaper Pages: 685 - 698
Availability of zinc, phosphorus and calcium in soils treated with varying levels of zinc and phosphate — A soil incubation study N. K. KalyanasundaramB. V. Mehta Short Communication Pages: 699 - 706
P32 distribution in phosphorus fractions of phosphorus-sensitive and -tolerant soybeans K. W. LeeC. E. ClappA. C. Caldwell Short Communication Pages: 707 - 712
Root hairs and phycomycetous mycorrhizas in phosphorus-deficient soil G. T. S. Baylis Short Communication Pages: 713 - 716
Degradation of soil humus by the fairy ring mushroom S. P. Mathur Short Communication Pages: 717 - 720
Inter-regional predictability of cation-exchange capacity by multiple regression W. Frank Miller Short Communication Pages: 721 - 725
Die Abhängigkeit der Luftstickstoffbindung in Buchenmullproben von der Dosierung des Cellulosezusatzes R. Hüser Short Communication Pages: 727 - 728
Differentiating chernozemic soil organic matter by acriflavine adsorption J. F. Dormaar Short Communication Pages: 729 - 732