Powder particles is possible without requiring the troublesome work of attachment and detachment of SOLVED diffusion means preferably performed collection of the powder particles when measuring the amount of particulate material that is actually released to provide a body spraying equipment. Diffusion means 27 of the rotary drive type to diffuse emission in the field of granular material fed from [SOLUTION] feeding means 25, and control means for controlling the operation of the diffuser means 27 and feeding means 25 is provided, the control means , as well as to operate the feeding means 25 as feeding the granular material at the equivalent extension amount and supplying normal working mode the granular material of a set amount per unit area of the field, and the extension amount in its normal operation mode, and is configured to freely switchable between the metering mode in which you want to run the metering operation to operate the diffusion means 27 in the metering drive state splash away of the powder particles is less than the normal working drive state. [Selection Figure Figure 5【課題】拡散手段の着脱作業等の煩わしい作業を必要とすることなく、実際に放出される粉粒体の量を計測する際に粉粒体の回収を良好に行うことが可能となる粉粒体散布装置を提供する。【解決手段】繰出し手段25から繰り出される粉粒体を圃場に拡散放出させる回転駆動式の拡散手段27と、繰出し手段25と拡散手段27の作動を制御する制御手段とが備えられ、制御手段が、圃場の単位面積あたりに設定量の粉粒体を供給する通常作業モードと、その通常作業モードにおける繰出し量と同等な繰出し量にて粉粒体を繰り出すように繰出し手段25を作動させるとともに、通常作業用駆動状態よりも粉粒体の跳ね飛ばしが少ない計量用駆動状態で拡散手段27を作動させる計量用動作を実行する計量用モードとに切り換え自在に構成されている。【選択図】図5
