Orchard multi-nutrient accurate fertilizer preparation variable fertilizer injection machine

The utility model discloses an orchard multi-nutrient precise fertilizer preparation variable fertilizer injection machine which comprises a rack, a controller, a drilling mechanism for drilling and punching holes and a precise fertilizer preparation mechanism for precisely preparing multi-nutrient fertilizers, the drilling mechanism comprises a hollow drilling shaft, a hydraulic motor controlling the drilling shaft to rotate and a hydraulic cylinder controlling the drilling shaft and the hydraulic motor to ascend and descend, and the hydraulic oil supply amount of the hydraulic motor and the hydraulic cylinder is controlled by the controller. A rotary joint arranged at the top end of the drilling shaft is connected with a mixing box in the precise fertilizer preparation mechanism through a pipeline with a fertilizer supply pump, the mixing box is respectively connected with a water tank and a plurality of fertilizer boxes through pipelines with fertilizer preparation pumps, and the fertilizer supply pump and