Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Petya GENKOVA, Vera STEFANOVA, Manol DALLEV, Hristo TANKOV
The final stage of the mechanical action of soil tillage machinery is the attainment of a target aggregate composition, defined by the size distribution of the resulting soil fractions. This study investigates the performance of innovative disk type working bodies and their effectiveness in achieving a specific degree of soil fragmentation. Agronomically valuable structure is characterized by aggregates ranging from 1 to 25 mm, which ensure optimal aeration, water regime, and root development. The experimental setup includes three operating speeds of the machine-tractor unit and two different soil terrains. The tests were conducted using a tillage mill equipped with non-standard disk working bodies with a horizontal axis of rotation, designed for enhanced kinematic and energy efficiency. For each experimental configuration, the degree of fragmentation was determined by collecting five evenly spaced soil samples along the length of the test plot. The results indicate that, under specific combinations of soil type, moisture content, and operating speed, the innovative disk working bodies achieve optimal aggregate composition, confirming their applicability for high efficiency soil tillage processes.
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{simplepopup popup="false" name="Citation3"}GENKOVA P., STEFANOVA V., DALLEV M., TANKOV H. 2026, IMPACT OF INNOVATIVE SOIL CULTIVATION DISCS ON AGRONOMICALLY VALUABLE SOIL. Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 32-37. {/simplepopup}