Fixed-point quantitative deep fertilization device containing guide wheel and application thereof

The invention discloses a fixed-point quantitative deep fertilization device containing guide wheels and application thereof.The fixed-point quantitative deep fertilization device comprises a supporting plate, first connecting plates are fixedly connected to the periphery of the lower end of the supporting plate, wheels are fixedly connected to the opposite faces of the two first connecting plates, and the oval guide wheels are fixedly connected to the opposite faces of the two wheels; the upper end of the liquid guide pipe is communicated with the liquid guide cavity, the outer side of the fertilization connecting pipe is fixedly sleeved with a pesticide storage box, the upper end of the fertilization connecting pipe penetrates through the supporting plate and extends into the guide cavity, the connecting seat is fixedly connected to the upper end of the supporting plate, and a quantifying mechanism is arranged in the connecting seat. An oval guide wheel drives a lifting rod to move up and down, a quantifyin