A chassis-mountable tillage implement (1) comprising a blade (2) prop which has an upper end (3), a lower end end, provided with at least one lateral flange (5), and edges ( 6, 7) front and back. The wing (5) side is equipped with a tip (8) side. The tillage tool (1) comprises a central point (10) extending in front of the front edge (6) of the blade and in a plane passing through the front (6) and rear (7) edges of the blade. working lower part of the blade. Each lateral (8) or central (10) tip has a length of at least 80 mm. The central point (10) is spaced from one or more of the lateral points (8) by a distance D1. The sum of the length L2 of the central point (10) and the length L1 of the lateral point (8) is greater than or equal to 1.6 times the distance D1.
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