A seeder is a farming machine used to carry out the Semis seeds. One also calls, sometimes, “seeders” the spreaders with manure. He was invented by Jethro Tull in 1700.

The seeders are generally to sow the Graine S in regularly spaced lines, with an adjustable depth, with a certain density, controlled by bodies of distribution.

A seeder is composed of a Trémie in which the reserve of seeds is, a system of transfer and distribution and bodies of setting out of ground made up either by small Soc S, or by discs. They can also comprise bodies of marking out making it possible to locate the sown furrows.