Fluoride-induced changes in chemical properties and microbial activity of mull, moder and mor soils

  title={Fluoride-induced changes in chemical properties and microbial activity of mull, moder and mor soils},
  author={B. -M. Wilke},
  journal={Biology and Fertility of Soils},
  • B. Wilke
  • Published 1 October 1987
  • Chemistry
  • Biology and Fertility of Soils
SummaryFluoride-induced changes of chemical properties and microbial activities in humus soils were investigated in 12-week lysimeter experiments. The mull soil showed the highest F-adsorption capacity, in which 94% of the fluoride added was retained after addition of 4.5 mg F/cm2 as NaF. The moder and mor soils only adsorbed 52% and 41%, respectively. F-additions induced leaching of organic matter, Fe, Al and P and increases in soil pH in the moder and mor. In contrast no Al, Fe and P was… 
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  • Chemistry
    Biology and Fertility of Soils
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SummaryEffects of Na2SeO3 on microbial activity of mull, moder and mor soils were investigated with perfusion experiments under controlled laboratory conditions. Treatments with Se at 50 mg/kg
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An O- und Ah-Lagen terrestrischer Humusformen wurden unter Verwendung von Perfusionsapparaturen Bleibelastungsversuche mit Pb (NO3)2 im Labor durchgefuhrt. Die Horizonte des Mullprofils wiesen die
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  • Medicine
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  • 2005
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An Assessment of some Thermal and Chemical Techniques used in the Study of the Poorly-Ordered Aluminosilicates in Soil Clays
Abstract The usefulness of various techniques for characterizing poorlyordered inorganic gel systems in clays is considered. Many established instrumental techniques are unsuitable, but thermal