PROBLEM TO BE SOLVED: To perform spraying by an accurate spraying amount irrespective to the properties of various fertilizers or medicines in a spraying implement equipped with a spraying device 10 capable of adjusting the spraying amount of raw materials to be sprayed such as the fertilizer or medicine housed in a hopper 18 and also a controlling means 43 for automatically controlling the spraying amount based on the detection of vehicle speed, on a traveling vehicle body 1.SOLUTION: This spraying implement is constituted by equipping a mode-switching means 38 for switching a working mode and test mode, ejecting the raw material to be sprayed for a prescribed time by controlling the spraying amount-adjusting means 19 so as to become the spraying amount at a prescribed vehicle speed by switching the mode-switching means 38 to the test mode and correcting the spraying amount based on the ejected amount, ejected during the prescribed time.COPYRIGHT: (C)2010,JPO&INPIT【課題】走行車体1に、ホッパ18に収容された肥料或いは薬剤などの散布原料の散布量を調節できるようにした散布装置10を備え、車速の検出に基づいて散布量を自動制御する制御手段43を備えている散布作業機において、種々の肥料や薬剤の性状に関わらず、適正な散布量の散布を行えるようにする。【解決手段】作業モードとテストモードに切換えるモード切換手段38を備え、このモード切換手段38をテストモードに切換えることにより、所定車速での散布量となるように散布量調節手段19を制御して所定時間の間、散布原料を吐出させ、この所定時間の間に吐出した吐出量を基に散布量を補正するように構成した。【選択図】図4
