The paper discusses the design of the main fuctions of the towed direct seeding machine(preamatic spraying seeding machine),which spraies bush seeds,grass seeds and small and roundish poison baits by use of the high speed air flow.

• 本文论述了一种利用高速气流将灌木种子、草籽、颗粒毒饵喷撒出去的机引喷播机的主要性能设计。