Selenium fertilizer spraying equipment for spraying leaf surfaces of crops

The invention relates to the technical field of crop fertilization, in particular to selenium fertilizer spraying equipment for spraying crop leaf surfaces, which saves manpower and material resources and improves the spraying efficiency of selenium fertilizer. Comprising a bottom plate, a top plate is fixedly installed on the bottom plate through supporting legs, a water tank is arranged on the top plate, and a walking mechanism and a water pump are further installed on the bottom plate; two sets of fixing shafts are installed among the wing plates, the bottom plate and the top plate, the wing plates are rotatably installed on each set of fixing shafts, the telescopic plates are slidably installed on each set of wing plates, the spraying pipes are fixedly installed on the telescopic plates, a plurality of sets of spraying nozzles are arranged on the spraying pipes, the input end of the water pump is communicated with the water tank, and the output end of the water pump is communicated with the two sets of sp