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21 November 2014

SPEED WITH DISC HARROW

SPEED WITH DISC HARROW

The higher powers of tractors allow higher working speed . Mainly in quicker grading and vertical tasks work is being done well above 10 km/h, which means that discs for disc harrow are continuously 'throwing' even more material, even further. Therefore, it seems wise to work at high speeds with less concavity. Are there any studies that document the maximum recommended speed for each concavity in 22” disks?

As the concavity of the disk increases, the turning of the soil is higher, causing a larger percentage of surface residue, which is not always good; at the same time it increases the power necessary for pulling the plough. There are other factors to be considered: separation between disks, weight on each disk and depth of work. Likewise, the consistency of the soil and the humidity content when plowing. That way, it is better to work with this type of 22 inch ploughs (light degree), in secondary works, or to incorporate straw, at speeds of up to 12 km/h, using disks with less concavity (60.5 mm). We do not know of any specific study that has compared lightweight ploughs with different disk concavities.

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