Disc Harrow Mulching

With this mod, disc harrows can now apply the "Mulched" field status when working on stubble fields. This simulates the light shredding and incorporation of harvest residues during shallow tillage.
This allows you to take advantage of the 2.5% yield bonus from mulching without needing a separate mulcher pass – provided this working method remains realistic for the respective crop.
For crops with heavy or abundant harvest residues such as corn, sunflowers, cotton, and sorghum, the effect will not be applied. A separate mulcher pass is still required for these crops if the mulched status is to be achieved.