Disclosed in the present invention is a no-till cover-seeding method for restoring a degraded mowing and
grazing grassland. The method comprises: step 1, providing a slot in a deep layer, wherein a
disc cutter is used to vertically
cut a non-ridged deep
cut slot of not less than 10 cm downwards into a surface of a degraded mowing and
grazing grassland; step 2, providing a vertical furrow in a mid-deep layer along the slot, and using a corrugated disc to
chop soil and root systems on inner walls of the deep
cut slot along the deep cut slot, wherein the chopping depth ranges from 6 cm to 8 cm; step 3, making a
seedbed in a middle layer along the vertical furrow, wherein an inverted-T-shaped
seedbed preparation device is used to prepare an inverted-T-shaped
seedbed in a lower middle portion of the vertical furrow in the direction of the vertical furrow, wherein the depth of the seedbed ranges from 4 cm to 6 cm; and step 4, performing seed blowing and
fertilizer blowing along the vertical furrow first, and then using a compacting device to compact the seedbed. In the present invention, without ridging the surface of the
grassland, the depth of the slot is increased, the disturbance to soil and root systems inside the slot is increased, and a
plough layer condition with "loose upper soil and compact lower soil" that is similar to farmland soil, and an inverted-T-shaped seedbed that increases temperature and conserves
moisture are created, thereby reducing damage to the grassland.