Goal. To determine the influence of different fertilizer systems and tillage method on structure density cultivated soil layer depending moisture strongly regraded chernozem in short crop rotations types Central Forest-Steppe Ukraine. Methods. Common — field, laboratory, mathematical, comparative. Results. A standardized interval is determined for podzolized rotation. It varies range from 1.26–...

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Most areas are exposed to landscaping by tipping and excavation. The reasons for this are numerous. New substrates are the body of soil formation. These soils are young and not much developed or stratified into horizons. Accumulation of humus will be visible, indicating that the soils are already sinks for carbon dioxide. An adverse characteristic of soils tipped in the last 30 to 40 years is s...

Soil-organic matter (SOM) is a complex array of components including soil fauna and flora at different stages of decomposition (Berg et al . , 1982). I ts concentration in soils can vary from 0.5% in mineral soils to almost 100% in peat soils (Brady, 1974). Organic matter (OM) in the surface mineral soil is considered a major determinant of forest ecosystem productivity because it affects water...

9 10 Two-week laboratory experiments were carried out in plastic boxes separated in two connected 11 compartments filled with a neutral soil (mull humus) at pH 7.7 and an acid soil (moder humus) at pH 12 4.3, containing their original faunas. Migration of Collembola from one compartment to the other was 13 allowed through a perforated wall. The mull was contaminated with three concentrations of...

While the spinor twisted de Rham sequence for orthogonal spin structures is well understood from the point of view of representation theory (see, e.g., Delanghe, Sommen, Souček [4]), its symplectic analogue seems to be untouched till present days. In Riemannian geometry, a decomposition of spinor twisted de Rham sequence (i.e., exterior differential forms with values in basic spinor bundles) in...