PROBLEM TO BE SOLVED: To provide a paddy field working machine having a fertilizer applicator that can prevent the fertilizer in a fertilizer hopper from becoming wet by entrance of rainwater and forming masses and allow fertilizer grains without moisture to smoothly fall down from the fertilizer hopper to outside of the machine.SOLUTION: A fertilizer throwing slot 60aa for throwing fertilizer into a fertilizer hopper 60 without being opened and closed on a traveling vehicle body 2, is formed on a lid member 60a a fertilizer shutter 63 for stopping drop-feeding of the fertilizer is slidably provided below the fertilizer hopper 60 and the fertilizer hopper 60 is detachably attached to a delivery device 61. Thus, in a rainy weather, entry of rainwater into the fertilizer hopper 60 is reduced, so that the fertilizer is prevented from becoming wet and forming masses and therefore the possibility the fertilizer cannot be fed from the delivery device 61 to a farm field is prevented, with the result that poor growth of seedlings due to shortage of fertilizer is prevented. In addition, adhesion of moistened fertilizer to the inside of the fertilizer hopper 60 and the delivery device 61 is not caused and thus the work of removing such adhesion is not needed, reducing the cleaning and maintenance work.COPYRIGHT: (C)2014,JPO&INPIT【課題】雨天時にも施肥ホッパ内に雨が入らないようにし、肥料が水分で塊になるのを防止し、また湿気のない肥料粒がスムーズに施肥ホッパから機体外部に排出される施肥装置を有する水田作業機を提供すること。【解決手段】走行車体2上に開閉することなく肥料を施肥ホッパ60に投入する肥料投入口60aaを蓋部材60aに形成し、ホッパ60の下部に肥料の落下供給を停止させる肥料シャッタ63をスライド自在に設け、ホッパ60を繰出装置61に着脱自在に設けたので、雨天時に作業する際に施肥ホッパ60内に浸入する雨水を軽減することができるので、肥料が水分を吸収して塊になり、繰出装置61から圃場に供給されなくなることが防止され、肥料不足による苗の生育不良が防止され、水分により塊になって施肥ホッパ60内や繰出装置61に付着した肥料を取り除く作業が不要となるので、掃除やメンテナンス作業の労力が軽減される。【選択図】図4
