Portable fertilizer applicator for planting pitaya

The invention relates to the technical field of fertilizer application machines, in particular to a portable fertilizer application machine for planting pitaya, which comprises a fertilizer storage bin, a flow guide bin bottom, a switching weighing box, a movable blocking block, a discharge hopper and a weighing storage groove, the upper part of the fertilizer storage bin is open, and the bottom of the fertilizer storage bin is communicated with the flow guide bin bottom; a switching weighing box is arranged at the bottom of the flow guide bin bottom in a communicating mode, a movable blocking block is movably arranged in the switching weighing box, a discharging hopper is arranged at the position, close to one end of the switching weighing box, of the lower surface of the switching weighing box in a communicating mode, and a weighing storage groove is formed in the movable blocking block in an up-down penetrating mode; a driving structure is arranged outside the switching weighing box; according to the porta