PROBLEM TO BE SOLVED: To lessen the possibility that poor jointing of a packaging bag may be caused by the amount of powder packaged in the one packaging bag.SOLUTION: When the amount of powder packaged in one packaging bag is a predetermined amount or above, the temperature of a seal of a seal iron is changed from a first temperature to a second temperature higher than the first temperature.SELECTED DRAWING: Figure 15COPYRIGHT: (C)2017,JPO&INPIT【課題】包装袋1包に包装する散薬の量によって包装袋の接合不良が発生する可能性を低減すること。【解決手段】包装袋1包に包装する散薬の量が所定の量以上である場合に、シールコテのシールの温度を、第1の温度から、第1の温度より高い温度である第2の温度に切り替える。【選択図】図15