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Author: Demirev Zh.

  • Механизация на земеделието

    JUSTIFICATION OF THE SOIL TILLAGE DEPTH AND TECHNOLOGICAL PRINCIPLE OF OIL SEED RAPE SOWING

    • Demirev Zh.
    Mechanization in agriculture & Conserving of the resources, Vol. 59 (2013), Issue 2, pg(s) 11-12
    • Abstract
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    •  Article PDF

    Based on the microprofiles studies at various fields and the main precursors of the oil seed rape, the minimum depth of presowing tillage is justified for sowing of oil seed rape seeds and other small seed crops. A suitable method for groove formation by venting of soil volume from the groove, through wedge deformation is proposed.

    Technology of a combined basis working tool is justified that brings together all technological operations for tillage and sowing in the required sequence.

  • Механизация на земеделието

    PRECONDITIONS FOR REDUCTION OF GRAIN LOSSES DURING THE OIL SEED RAPE HARVESTING

    • Bratoev K.
    • Demirev Zh.
    • Dobrinov V.
    Mechanization in agriculture & Conserving of the resources, Vol. 59 (2013), Issue 2, pg(s) 7-10
    • Abstract
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    •  Article PDF

    Harvesting of oil seed rape and avoiding of big grain losses require specific adjustments of the machine. The basic level of grain machine losses comes from the entrance device (header) added the losses from the following up devices in accordance of the applying technological scheme. The mean feature for each device is its exponential character, which means, that they are very sensitive to the parameter changes, from which they depends on. By suitable prescription of the technological adjustments and adequate selection of the machine type those losses can be reduced below the agritechnical requirements.

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