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references

  • BECKETT, P. H. T. & DAVIS, R. D. (1977). Upper critical levels of toxic elements in plants. New Phytol., 79, 95.
  • BERROW, M. L. & WEBBER, J. (1972). Trace elements in sewage sludges. J. Sci Fd. Agric., 23, 93.
  • BROWN, V. M., JORDAN, D. H. M. & TILLER, B. A. (1969). The acute toxicity to rainbow trout of fluctuating concentrations and mixtures of ammonia, phenol and zinc. J. Fish Biol., 1, 1.
  • CARLSON, R. W. & BAZZAZ, F. A. (1977). Growth reduction in American Sycamore (Plantanus occidentalis L.) caused by Pb-Cd interaction. Environ. Pollut., 12, 243.
  • DAVIS, R. D. & BECKETT, P. H. T. (1978a). Critical levels of Cu in young barley, wheat, rape, lettuce and ryegrass, and of Ni and Zn in young barley and ryegrass. New Phytol., 80, 23.
  • DAVIS, R. D. & BECKETT, P. H. T. (1978b). The use of young plants to detect metal accumulations in soils. Wat. Poll. Control, (in press).
  • DAVIS, R. D., BECKETT, P. H. T. & WOLLAN, E. (1978). Critical levels of twenty potentially toxic elements in young spring barley. PL and Soil, (in press).
  • EAGLE, D. J., RUSSELL, R. D., BOYD, D. A., DRAYCOTT, A. P. (1974). Using reference curves to estimate the effect on crop yield and profitability of possible changes in fertiliser recommendations. Tech. Bull. No. 32., pp. 35570. Ministry of Agriculture, Fisheries and Food.
  • HERBERT, D. W. M. (1961). Freshwater fisheries and pollution control. Proc. Soc. Water Treatment and Examination, 10, 135.
  • HERBERT, D. W. M. (1962). The toxicity to rainbow trout of spent still liquors from the distillation of coal. Ann. Appl. Biol., 50, 755.
  • HERBERT, D. W. M. & SHURBEN, D. S. (1964). The toxicity to fish of mixtures of poisons. I. Salts of ammonia and zinc. Ann. Appl. Biol., 53, 33.
  • HEWITT, E. J. (1966). Sand and water culture methods used in the study of plant nutrition, Commonwealth Bureau of Horticulture and Plantation crops. Tech. Comm. 22.
  • LLOYD, R. & JORDAN, D. H. M. (1963). Predicted and observed toxicities of severe sewage effluents to rainbow trout. J. Inst. Sew. Purif., 2, 167.
  • MATTHEWS, P. J. (1977). Relative toxicity in water quality planning. Effl. and Wat. Treatment J., 16.
  • SOUTHGATE, B. A. (1932). The toxicity of mixtures of poisons. Qu. J. Pharmacy, 5, 639.
  • SPRAGUE, J. B. & RAMSAY, B. A. (1965). Lethal levels of mixed Cu-Zn solutions for juvenile salmon. J. Fish. Res. Bd Can., 22, 425.
  • SPRGAGUE, J. B. (1969). Measurements of pollutant toxicity to fish. I. Bio-assay methods for acute toxicity. Water Res., 3 793.
  • SPRAGUE, J. B. (1970). Utilizing and applying bio-assay results. Water Res., 4, 793.
  • VOSE, P. B. (1963). Varietal differences in plant nutrition. Herb. Abstr., 33, 1.