PROBLEM TO BE SOLVED: To provide a spreader which enables the proper checking of an accumulated feeding amount at the start time of work or midway through the work, and which secures a period of endurance by reducing the frequency of writing operations.SOLUTION: This spreader for a granular fertilizer or the like is provided with a controller (15) for calculating the number of feeding rotations of feeding rolls (20a, 20b, 20c and 20d) from set spreading amount information and vehicle speed information output by the rotation detection of a travel transmission portion of a travel machine frame. The spreader is also is provided with a driving means (25) for driving a roll driving shaft (21) on the basis of the number of feeding rotations. Furthermore, the spreader is also equipped with a means for calculating the accumulated feeding amount according to the number of the accumulated rotations of the feeding roll and a predetermined feeding amount per unit rotation of the feeding roll. It is detected that the controller (15) is put into a power-OFF state from a power-ON one, and the accumulated feeding amount is written in a nonvolatile memory (63).COPYRIGHT: (C)2008,JPO&INPIT【課題】作業開始時や作業途中で累計繰出量を適正に確認でき、書き込み頻度を少なくして耐用期間の確保を図る。【解決手段】設定散布量情報及び走行機体の走行伝動部の回転検出によって出力される車速情報から前記繰出ロール(20a,20b,20c,20d)の繰出回転数を算出するコントローラ(15)を設け、この繰出回転数で前記ロール駆動軸(21)を駆動する駆動手段(25)を備えた粒状肥料等の散布装置において、繰出ロールの累積回転数と該繰出ロールの単位回転毎の既定の繰出量とによって累計繰出量を算出する手段と、前記コントローラ(15)が電源入りから電源切りになったことを検出し前記累計繰出量を不揮発メモリ(63)に書き込む構成とした。【選択図】 図11
