Soil Rehabilitation Guidebook

[Soil Rehabilitation Guidebook Table of Contents]

Appendix 3. Description and components of a wet broadcast seeder4

In wet broadcast seeding, a holding tank supplies a Wajax Mk 26 fire pump with water, which generates pressure, assisted by restrictions built into a specially developed nozzle. The restriction in the nozzle uses the venturi principle. A concentrated stream of water under high pressure passes by an eductor pipe, creating enough vacuum to draw seed by way of a flexible hose through an inductor pipe situated in a specially designed hopper/inductor system. The seed drawn into the nozzle is mixed with the water creating the vacuum, then discharged onto the target area (Craven 1992).

A general description of the components of the wet broadcast seeder is presented here for the efficient operation of the implement.