| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for spraying a flowable herbicide (suspension) on a flooded paddy field by charging the flowable herbicide into a pressure vessel, pressurizing the vessel and subsequently using a fine hole-having nozzle connected to the vessel, contriving the shortage of a spraying time and the saving of labor. SOLUTION: This method for spraying a flowable herbicide (suspension) on a flooded paddy field comprises charging the flowable herbicide containing a herbicidally active ingredient and water as essential components into a pressure vessel as such or after diluted with water, elevating the inner pressure of the pressure vessel to 1-5 kg/cm<2> and subsequently spraying the flowable herbicide by use of a nozzle connected to the vessel and having, for example,ϕ1-2 mm fine holes. It is therein preferable to use a herbicide liquid obtained by diluting the flowable herbicide with water and having a viscosity of 10-560 Pa.S at 20 deg.C.
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