Morphometrical structure evaluation of long-term manured Ukrainian chernozem
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Institute of Soil Science, Environment Engineering and Management, University of Life Sciences, Leszczyńskiego 7, 20-069 Lublin, Poland
A.N. Sokolovskiy Research Institute of Soil Science and Agrochemistry, Ukrainian Academy of Agrarian Sciences, Chajkovskiy 4, 61024 Kharkiv, Ukraine
Int. Agrophys. 2012, 26(2): 117–128
There was performed an image analysis of the structure of Ukrainian chernozem, which (I) by standard crop rotation was fertilized for 78 years with farm yard manure and (II) by continuous cultivation of sugar beet was not organically fertilized. For the both soils the largest differences were stated in the values of morphometrical parameters related to the soil solid phase element cross-sections. The differences in the parameters for pore cross-sections were much smaller. The soil I was characterized on average with larger macroporosity, larger relative and absolute number of solid phase element cross-sections, and larger relative length of border line between pore and solid phase element cross-sections than the soil II. For the both pedons the pore and solid phase element cross-sections were in general randomly oriented in the soil body. Due to the kneading the pore cross-sections in the superficial layer of the soil after monoculture of sugar beet were oriented horizontally. The soil structure in the corresponding layers of both pedons was to a high degree dissimilar. The largest differences in the arrangement of the soil solid phase and void space occurred  in the upper layers.