The invention discloses a fertilizing device for corn cultivation, and relates to the technical field of intelligent agricultural machines.The fertilizing device comprises a rack and a ditching wheel, the ditching wheel is arranged below the rack, a fertilizing
barrel is erected on the rack, and a feeding cavity is formed in the fertilizing
barrel. The driving part drives the multiple feeding shafts to rotate at different transmission ratios, the feeding grooves formed in the feeding shafts and the telescopic flexible pads in the feeding grooves are combined, different
nitrogen,
phosphorus and
potassium fertilizers in the feeding cavity can be put in different proportions, the dynamic requirements of corn for elements such as
nitrogen,
phosphorus and
potassium in different growth stages are met, and the corn planting efficiency is improved. The phenomena of
seedling burning or insufficient
fertilizer supply and the like caused by unbalanced proportioning are avoided, the feeding amount of each chemical
fertilizer can be accurately controlled, and the problem of low chemical
fertilizer proportioning precision of a traditional fertilizing device is effectively solved.