By Margaret E. Farago
Furthermore emphasis is put on environmental points, with particular concerns of crops that hyperaccumulate heavy metals and vegetation which are signs for pollutants.
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Additional resources for Plants and the chemical elements: biochemistry, uptake, tolerance and toxicity
Hawkes, H. , Webb, J. S. (1979). , London: Academic Press. , Jurinak, J. J. (1975). Soil Science Society of America Proceedings, 39, 851 - 856. , Schuppli, P. (1989). Soil Science Society of America Journal, 53, 1418- 1424. Schwab, A. , Lindsay, W. L. (1983). Soil Science Society of America Journal, 47, 210-205. Seip, H. , Tollan, A. (1978). Science of the Total Environment, 10, 253-270. Shuman, L. M. (1985). Soil Science, 140, 11 -22. Shuman, L. M. (1988). Soil Science, 146, 192- 198. Shuman, L.
Nitrate reduction to form other nitrogen compounds such as amino acids takes place in the roots. The nitrogen cycle has been discussed by Sprent (1988) and Wilson (1988), and nitrogen metabolism in plants has been recently reviewed (Mengel and Pilbeam, 1992). Plants take up N both as nitrate (usually the most abundant form of soluble N in the soil), and as ammonium. Although the balance varies with species, nitrate is the major source. Numerous studies have shown that ammoniacal-N as a sole source of nitrogen is deleterious to the growth of many higher plants (Pill and Lambeth, 1977).
Tkierweiler, J. F. (1966). Soil Science Society of America Proceedings, 30, 723 - 726. Jarvis, S. C. (1984). Journal of Soil Science, 35, 431 -438. Jenne, E. A. (1968). In: Trace Inorganics in Water: Baker, R. ) Washington DC: American Chemical Society. , Grossenbacher, K. (1963). Soil Science Society America Proceedings, 27, 273 -277. , Benton, (1990). Communications in SoilScience and PlantAnalysis, 21, 1091 - 1101. Jones, K. , Davies, B. , Peterson, P. J. (1986). Geoderma, 37, 157- 174. Junus, M.
Plants and the chemical elements: biochemistry, uptake, tolerance and toxicity by Margaret E. Farago