The effect of soil tillage system on soil bulk density and other physical and hydrophysical characteristics of gleyic fluvisol
2007
Mati, R., Slovak Agricultural Research Centre , Michalovce (Slovak Republic). Institute of Agroecology | Kotorová, D., Slovak Agricultural Research Centre , Michalovce (Slovak Republic). Institute of Agroecology
Different sustainable systems of husbandry on soil with various protective technologies are frequently studied. Direct sowing without ploughing is one of the alternatives. This article presents results of the effect of conventional tillage (CT) and no-tillage system (NT) on soil bulk density, soil porosity, maximum capillary capacity and available water capacity of Gleyic Fluvisol in conditions of the East-Slovakian Lowland. Observed years 1999 - 2005 from point of view of annual sum of precipitation are valued as dry till humid and of annual average air temperature as normal or warm. The effect of used agrotechnical arrangements was statistically highly significant (alpha = 0.01) for porosity changes and statistically significant for soil bulk density (alpha = 0.05). Non-significant effect was found for maximum capillary capacity and available water capacity. In the soil layer 0 - 0.3 m during years 1999 - 2005 soil bulk density increased about 22 kg per cubic m (1.54%) at no-tillage system in comparison to conventional tillage. At no-tillage system average values of porosity decreased about 1.32%, maximum capillary capacity and available water capacity non-significantly decreased about 0.32% in comparison to conventional tillage.
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