To provide the subject spray nozzle supporting structure for a self-propelled sprayer capable of spraying in the following manner in which a chemical solution can be dripped along leaves to a root part when the chemical solution is sprayed from one spot to both sides diagonally downward even if a spray pipe long right and left is not installed above a crop in a case of a crop having vertically long leaves such as Welsh onion.
Base end parts of a pair of a right and a left spray main pipes 15 are fixed to a spray main pipe stay 14 attached to a self-propelled sprayer by a bolt 17 so as to adjust an opening angle. Spray branch pipes 15a/15b/15c each having a spray nozzle 16 at the tip are extended outward from each spray main pipe 15. The spray branched pipe 15a closest to the tip end of the spray main pipe 15 is made longest and the spray branched pipe 15c closest to the base end is made shortest.
SHIMAMOTO MASAO
SASUGA MASATO
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