Abstract
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 HruĹĄovany nad JeviĹĄovkou (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).
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Claims 4
Claim · model-written summary
Cultivation without ploughing improved water stability of soil aggregates.
- Treatment
- cultivation without ploughinge0
- Outcome
- water stability of soil aggregatese0
- Direction
- positive effecte0
Not reportedTaxonComparator
Verbatim
e0“An overall analysis of results revealed a positive effect of cultivation without ploughing on water stability of soil aggregates.”
Claim · model-written summary
Ploughing significantly decreased aggregate water stability.
Not reportedTaxonComparator
Verbatim
e0“In the variant with ploughing was found out a statistically significant decrease of this stability.”
Claim · model-written summary
Minimum tillage improved crop yields, especially maize and winter wheat.
- Taxon
- maize and winter wheat
Triticum aestivum
Zea mayse0 - Treatment
- minimum tillagee0
- Outcome
- yieldse0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both minimum tillage and deep soil loosening showed a positive effect on yields of crops under study (above all of maize and winter wheat)”
Claim · model-written summary
Deep soil loosening improved crop yields, especially maize and winter wheat.
- Taxon
- maize and winter wheatTriticum aestivumZea mayse0
- Treatment
- deep soil looseninge0
- Outcome
- yieldse0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both minimum tillage and deep soil loosening showed a positive effect on yields of crops under study (above all of maize and winter wheat)”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
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- no effect
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1,115 papers in the same direction as this paper · 257 in the opposite direction · 41 reporting no difference from an alternative
- negative
- negative
- negative
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See all 1,414 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.