Vertical variability of selected properties of gleyic fluvisol | Vertikálna variabilita vybraných vlastností fluvizeme glejovej
2008
Šoltysová, B., Centrum výskumu rastlinnej výroby, Piešťany (Slovak Republic). Ustav agroekológie Michalovce | Kotorová, D., Centrum výskumu rastlinnej výroby, Piešťany (Slovak Republic). Ustav agroekológie Michalovce
Vertical variability of physical, hydrophysical and chemical properties of heavy Gleyic Fluvisol were observed in years 2006 - 2007. Research was realized on two variants: Ex - experimental and Ko - control. Soil samples were taken from depth 0.0 - 0.6 m from each 0.1 m in spring time year 2006 and in autumn time years 2006 - 2007. From soil pproperties were observed as follows: granulometric composition, bulk density, total porosity, maximum capillary capacity, content of total nitrogen, available phosphorus, available potassium, magnesium, exchange soil reaction and humus content. On both variants in soil profile 0.0 - 0.6 m content of clay particles was in range 59.41 - 68.52% and soil is characterized as clay-loamy soil till clayey soil. In average bulk density was higher at experimental variant. On valued of physical and hydrophysical soil parameters had statistically significant effect variant, year and depth of soil profile. Depth of soil profile had statistically significant effect on content of clay particles. Depth taking and year statistically significant influenced values of observed chemical soil parameters. With depth of soil profile decreasing of available phosphorus, potassium, total nitrogen and humus were determined. In lower of soil profile higher contents of available magnesium and exchange soil reaction were ascertained. In soil profile 0.0 - 0.6 m decreased contents of available magnesium, total nitrogen and exchange soil reaction in year 2007 in comparison with initial stage. The available phosphorus and potassium contents were significant increased. Variants statistically significant influenced contents of available nutrients, total nitrogen and soil reaction.
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