Disc ridging and fertilizing mechanism and working method thereof

The invention relates to a disc ridging and fertilizing mechanism which comprises a plurality of groups of soil dividing discs matched in pairs, the soil dividing disc is deflected relative to the advancing direction of the disc ridging fertilizer applicator; the front ends of the soil dividing plates in the same group are close to each other, and the rear ends are far away from each other; the soil dividing disc comprises a disc body which rotates; a scraping plate is arranged on the outer side of the disc body; a material guide plate is arranged on the inner side of the disc body; a discharging channel is formed in the disc body, and the rotating tracks of the scraping plates and the rotating tracks of the material guiding plates communicate with each other through the discharging channel; the side, away from the disc body, of the material guide plate is bent in the rotating direction of the soil dividing disc, and scraped soil is guided to penetrate through the material discharging channel to reach the out