Trendafilov, K.; Tihanov, G.; Kadiev, D.

Study on the effect of the operation mode of a plough with active soil chopper on the granulometric composition of the soil

2025

AGRICULTURAL SCIENCE AND TECHNOLOGY, VOL. 17, No 1, pp 45-58

Тракийски университет - Стара Загора

1314-412X [issn]

Article

eng

share plough; active soil chopper; combined machine; granulometric composition of the soil; operation speed; frequency of rotation

The publication discusses a study on the granulometric composition of the soil during cultivation with a combined machine consisting of a share plough and an active soil chopper. It has been established that in order to achieve good cultivation of the soil with the combined machine, in which there is a higher proportion of soil particles with sizes up to 50 mm in the surface layer of the soil at a depth of up to 10 cm, the controllable factors should have the following values: operating speed 1.389 m/s; height of the axis of the soil chopper from the bottom of the furrow – 0.36 m; frequency of rotation of the shaft of the soil chopper - 220 – 280 min-1; distance of the axis of the soil chopper from the tip of the plough body share – 0.75 m for the layer with a depth of 10-20 cm, for the surface layer with a depth of 0-10 cm the influence of this factor is not unambiguous and is subject to additional research. It is proven that when ploughing with a soil chopper, soil aggregates with dimensions below 50 mm are 89.4% and 84%, respectively, in the layers with a depth of 0-10 cm and 10-20 cm. The obtained results confirm the hypothesis that the developed combined machine can be used for pre-sowing soil cultivation.