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[3] Vital electrolytes ± Baker, W.E. (1973). Geochimica et Cosmochimica Acta, 37, 269-281
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[7] Enhance and transport nutrients ± Christman, R.F., & Gjessing, E.T. (1983). Aquatic and terrestrial humic materials. The Butterworth Grove, Kent, England: Ann Arbor Science
[8] Enhance and transport nutrients ± Prakish, A. (1971). Fertility of the Sea, 2, 351-368
[9] Williams, S. T. (1963). Are antibiotics produced in soil? Pedobiologia, 23, 427-435.
[10] Enhance permeability of cell membranes ± Christman, R.F., & Gjessing, E.T. (1983). Aquatic and terrestrial humic materials. The Butterworth Grove, Kent, England: Ann Arbor Science.
Also: Prakash, A. (1971). Terrigenous organic matter and coastal phytoplankton fertility. In J.D.
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Fertility of the Sea, Sao Paulo, Brazil, London, and New York: Gordon and Breach Science ) low
molecular weight, Aiken, G.R., McKnight, D.M., & VacCarthy, P. 1985). Humic substances of soil,
sediment and water, New York: Wiley ± Interscience.
[11] Increase assimilation- Buffle
126
[12] 6 Sensitize cell membranes- Rashid, M.A. (1985). Geochemistry of Marine Humic Substances. New York: Spriner-Verlag.
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[14] Free radical ± Senesi, N., Chen, Y., & Schnitzer, M. (1977b). The role of humic acids in extracellular electron transport and chemical determination of pH in natural waters. Soil Biology and
Biochemitstry, 9, 397-403.
[15] Rashid, M.A. (1985). Geochemistry of Marine Humic Substances. New York: Springer-Verlag.
[16] paraquat ± Fisher, A.M., Winterle, J.S., & Mill, T. (1967). Primary photochemical processes in
photolysis mediated by humic substances. In R.G. Zika & W. J. Cooper (Eds). Photochemistry of
environmental aquatic system (141-156). (ACS Sympoium Series 327). Washington DC: American Chemical Society.
[17] Pesticides ± Aiken, G.R., McKnight, D.M., & MacCarthy, P. (1985). Humic substances os oil,
sediment and water. New York: Wiley-Interscience.
[18] Enhance and transport nutrients ± Prakash, A. (1971). Fertility of the Sea, 2, 351-368.
[19] proteins, DNA, RNA ± Khristeva, L.A., Soloche, K.I., Dynkina, R.L., Kovalenko, V.E., & Gorobaya, A.I. (1967). Influence of physiologically active substances of soil humus and fertilizers on
nucleic acid metabolism, plant growth and subsequent quality of the seeds. Humus et Planta, 4,
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[20] Proteins, DNA, RNA ± Jackson, William R. (1993). Humic, Fulvic and Microbial Balance:
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active substances of the soil humus and of organic fertilizers and their agricultural importance.
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[22] Senesi, N. (1990). Analytica Chimica Acta, 232, 51-75. Amsterdam, The Netherlands: Elsevier
[23] Vital electrolytes ± Baker, W.E. (1973). Geochimica et Cosmochimica Acta, 37, 269-281.
[24] immune system ± Syltic, P.W. (1985). Effects of very small amounts of highly active biological substances on plant growth. Biological Agriculture and Horticulture, 2, 245-269; and,
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