PROBLEM TO BE SOLVED: To disseminate and to supply a disease and insect damage-controlling agent to a paddy field in the state where the disease and insect damage-controlling agent can work effectively.SOLUTION: A direct sowing machine includes a dissemination device 4 for direct sowing seed rice onto a paddy field, and an agent supply device 3 for supplying a disease and insect damage-controlling agent, and further includes agent implanting means 5 for supplying so that a supply position to the paddy field of the disease and insect damage-controlling agent by the agent supply device 3 is a depth position capable of avoiding exposure to a mud surface.【課題】病虫害防除用薬剤を有効に作用させ得る状態で、播種及び病虫害防除用薬剤の田面への供給を行えるようにする。【解決手段】水田に対して種籾を直播きする播種装置4と、病虫害防除用薬剤を供給する薬剤供給装置3とを備えるとともに、前記薬剤供給装置3による病虫害防除用薬剤の田面に対する供給位置が、泥表面への露呈を回避可能な深さ位置となるように供給する薬剤埋入手段5が備えられている。【選択図】図2