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There are two explanations regarding the formation of the Hungarian Hortobágy steppes and associated saline areas. To assess the different opinions we carried out pedological, geochemical, mineralogical and malacological analyses in the Csípo˝-halom (Csípo˝-mound) kurgan. Our research shows that the landscape 6000 years ago was similar to today, an environmental patchwork of dry steppes, wetlands...
Static equilibrium measurements were performed for the study of propisochlor on three different kinds of soils at pH=7.0 at 25 o C. The concentration of herbicide was changed from 30 to 300 μmol/l. The obtained two-step adsorption isotherms cannot be evaluated by using the Freundlich or Langmuir equations. New equation has been derived by making use of the usual mass balance and equilibrium...
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