VERTOSOILS AND VERTIC SOILS FROM OLTENIA AND THEIR MAIN CROPPING FEATURES

Authors

  • C. Popescu University of Craiova, Faculty of Agriculture
  • Florina Grecu University of Craiova, Faculty of Agriculture
  • Emilia Constantinescu University of Craiova, Faculty of Agriculture

Abstract

The vertosols occupy a large area in the Central zone of Oltenia. They are soils that were formed on clay bedrock represented by swelling clays of montmorillonite that have the property to enlarge very much its volume in contact with water and to contract very strongly when dry, during drought periods. This property of montmorillonite as bedrock determine in the mass of the soil the apparition of cracks from several mm to several cm on horizontal and from several cm to several meters on vertical. The vertosols are present in complex with other vertic soils as vertic preluvosols and vertic luvosols. All these soils have a high clay content, they are compacted, they have a low water and air permeability. Generally, they are profound soils and manifest levigation and stagnogleysation processes having average – low fertility.

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Published

2015-12-26