engleski

Pseudogley characteristics, distribution and limitations in plant production on the County of Slavonski Brod-Posavina area

The aim of this paper was to determine the distribution and characteristics of hydromorphic soils, class pseudogley soil, soil type pseudogley of County of Slavonski Brod- Posavina. According to Basic Soil Map of the Republic of Croatia (scale 1:50000) and previous studies in these investigation area 17 soil types were determined, of which 10 belong to automorphic soils, and 7 to hydromorphic soils. Pseudogley takes about 36184, 4 ha in County of Slavonski Brod-Posavina (Brodsko- posavska County). The texture of these soils is silty clay loam in surface and subsurface horizon with content of clay between 10, 4 to 36, 1%. Soil structure agregates are very unstable. Pseudogley soils in this area are characterized by a low to very low air holding capacity and low to medium retention water capacity, also water drainage is low to absolutely watertight. It was determined that soils are vary from very to low acid (pH KCl 3, 96 to 5, 66) and show low to moderate supplies of potassium. Supplies of phosphorus are very variable (0 to 30 mg/100 g soil), also content of soil organic matter is in wide range (from 0, 2% to 7, 02%). Main limiting factors of pseudogley for plant production are presence of watertight pseudogley (g) horizon, high density, low infiltration, low air capacity, high soil plasticity and low phosphorus and potassium content.

pseudogley ; soil properties ; soil suitability ; county of Slavonski Brod-Posavina

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