Sowing machine with soil water content detection and water replenishing functions

The invention discloses a seeder with soil water content detection and water replenishing functions, and relates to the technical field of agricultural machinery, the seeder comprises a rack, the bottom of the rack is provided with walking wheels, the rack is provided with a seeding mechanism, the seeding mechanism is connected with a depth adjusting mechanism, and the seeding mechanism is also connected with a water replenishing mechanism; the seeding mechanism comprises a connecting frame, the connecting frame is connected with the rack through a lifting frame, a lower mounting frame and an upper mounting frame are arranged on the connecting frame, first right-angle frames are uniformly arranged on the lower mounting frame, furrow openers are arranged on the first right-angle frames, seeding discs are mounted on the backs of the right-angle frames, and second fixing plates are uniformly arranged on the upper mounting frame; a seed box is fixedly mounted on the fixed plate II, and is connected with the seedi