Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 25-30 | DOI: 10.11118/actaun201159060025

Water stability of soil aggregates in different systems of Chernozem tillage

Jaroslava Bartlová, Barbora Badalíková
Zemědělský výzkum, spol. s r. o., Zahradní 1, 664 41 Troubsko, Česká republika

Effects of various agrotechnical measures on macrostructural changes in the ploughing layer and subsoil were studied within the period of 2008-2010. Soil macrostructure was evaluated on the base of water stability of soil aggregates. Altogether three variants of soil tillage were established, viz. ploughing to the depth of 0.22 m (Variant 1), deep soil loosening to the depth of 0.35-0.40 m (Variant 2), and shallow tillage to the depth of 0.15 m (Variant 3). Experiments were established on a field with Modal Chernozem in the locality Hrušovany nad Jevišovkou (maize-growing region, altitude of 210 m, average annual sum of precipitation 461 mm). In the first experimental year, winter rape was the cultivated crop and it was followed by winter wheat, maize and spring wheat in subsequent years. The aim of this study was to evaluate effects of different methods of tillage on water stability of soil aggregates and on yields of individual crops. An overall analysis of results revealed a positive effect of cultivation without ploughing on water stability of soil aggregates. In the variant with ploughing was found out a statistically significant decrease of this stability. At the same time it was also found out that both minimum tillage and deep soil loosening showed a positive effect on yields of crops under study (above all of maize and winter wheat).

Keywords: soil tillage, water stability of aggregates, chernozem, yield
Grants and funding:

The results of this study are part of the research project QH 72039, which is funded by the Ministry of Agriculture of the Czech Republic via the National Agricultural Research Agency.

Received: May 31, 2011; Published: March 16, 2014  Show citation

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Bartlová, J., & Badalíková, B. (2011). Water stability of soil aggregates in different systems of Chernozem tillage. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 59(6), 25-30. doi: 10.11118/actaun201159060025
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