PROBLEM TO BE SOLVED: To provide an electric operation unit of a fertilizer application device that can be handled by a worker efficiently and easily, and provide the electric operation unit of the fertilizer application device that can easily be responded when an application condition is changed.SOLUTION: A wireless communication control device has a control unit for controlling an application amount adjusting unit 22 according to a command signal of a radio wave received by a fertilizer application device 2, and a remote controller 31 with a transmission unit for transmitting a command signal radio wave. The remote controller 31 includes a shutter plate opening degree calculation unit for calculating an opening degree from each application condition. The wireless communication control device includes a memory unit of an opening degree position of a calculated shutter plate and the application condition, and the memory unit can store two or more combinations between the opening degree position of the shutter plate and the application condition. The wireless communication control device also includes a control unit capable of calling and changing in a state capable of transmitting a command signal by a call switch, re-calculating the condition when changed, and capable of being replaced to the condition and the opening degree position by the memory unit.SELECTED DRAWING: Figure 1【課題】作業者が容易に効率よく扱うことができる肥料散布装置の電動作動部の操作部を提供することであり、散布条件が変更された場合でも容易に対応が可能である肥料散布装置の電動作動部を提供する。【解決手段】肥料散布装置２の受信した電波の指令信号に応じて散布量調整部２２の作動を制御する制御部と、指令信号電波を送信する送信部を備えたリモコン装置３１とを有する無線通信制御装置であり、リモコン装置３１は、各散布条件から開度を算出するシャッタ板開度算出部を備え、算出されたシャッタ板の開度位置と散布条件の記憶部を備え、シャッタ板の開度位置と散布条件の組合せを複数記憶可能であり、呼出しスイッチで指令信号を送信できる状態に呼出し可能であり変更可能で、条件を変更すると再算出し、記憶部が変更後の条件と開度位置とに置き換え可能な制御部を備える無線通信制御装置による。【選択図】図１
