#7046. The effect of roller pressure and share of plant matter in mulching soil cultivation on its density and water content

January 2027publication date
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Journal’s subject area:
Mechanical Engineering;
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Abstract:
The aim of this study was to assess the impact of the roller load (with cultivating tools) and doses of plant matter (straw and charlock) mixed with soil on the air and humidity conditions of such soil. The innovation of the research consisted in abandoning the use of Kopeckys cylinders: the bulk density of mulched soil was determined by measuring its mass and volume, which it obtained in vases before and after the roller work. Capillary infiltration was also carried out for soil in vases. Variable research factors characterizing the roller working conditions in the mulching tillage, were: source/type of plant material cut into 10 cm chopped straw, its share in soil, three ranges of soil water content and vertical unit load on the roller. Increasing the straw dose to 30 Mg.ha?1 reduces the bulk density from 1.17 to 0.76 g.cm?3, while increasing the dose of charlock to 60 Mg.ha?1 under these conditions, it reduces the density to 1.03 g.cm?3. At the same time, humidity conditions change: volumetric water content decreases in case of straw from 13.9% to 8.5% and increases in case of charlock to 17.4%. Changes occur also in case of full water capacity.
Keywords:
Density and water content of soil with matter; Land rolling; Mixing soil with plant matter; Seedbed compaction

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