Four-row modernised disc harrow BDM with a bearing unit inside the disc sphere, with discs on an individual stand, with a change in the angle of attack of discs synchronously in each row, designed for surface tillage to a depth of 17cm, weed killing and shredding crop residues. Due to uniform mixing of earth with crop residues, the disc harrow is effective on soils subject to wind and water erosion. Plant residues, evenly mixed with the topsoil, protect the soil from blowing out and leaching and improve air exchange. At the same time, plant residues in the ground are actively transformed into humus, increasing soil fertility.
Four-row disc harrow is used in different agro-climatic zones of Russia, on all types of soils, except for stony soils. The four-row harrow can be effectively used for the introduction of fallow lands into the turnover, for basic and pre-sowing cultivation in the system of minimum tillage, for rejuvenation of degrading meadows and pastures.
Advantages of 4-row BDM harrows in comparison with 2-row harrows:
- Four-row harrows have a sufficiently large distance between discs in a row. The distance between discs in a row is 460mm, the distance between rows is 675mm. The soil thrown up by a row of discs can therefore easily pass between the discs of the following row. Thus, the four-row harrow is able to work in fields with high weeds and to a great depth.
- The long frame helps to smooth out small irregularities in the field. The four-row harrow is an excellent planner, easily smoothing out pile ridges, headlands, deep ruts, moleholes, etc. Thus, the four-row harrow is indispensable for the introduction of fallow land into circulation.
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