Construction differences between PSK seed drill and mechanical seed drill from company OLT

U ovom radu su obrađene sijačice, točnije usporedba pneumatske PSK sijačice i mehaničke MSK sijačice tvrtke OLT. Također su obrađeni dijelovi tih sijačica (spremnik, sijači aparat, provodne cijevi, ulagači sjemena, pritiskujući kotači, …). Cilj sijačice je da se sjeme što preciznije položi u tlo kako bi se zadovoljio sklop biljaka po jedinici površine. Isto tako dubina sjetve mora biti odgovarajuća vrsti sjemena. Sijače ploče omogućuju univerzalnost sijačica, te se one mogu koristiti za sjetvu mnogih kultura. Pneumatska sijačica ima niz prednosti nad starijom mehaničkom sijačicom i uvelike pridonosi kvaliteti sjetve.This is study about sowing machines, particulary comparison between pneumatic sowing machines PSK and MSK mechanical seeder from OLT company. These machines have similar parts (seed box, sowing machine, conductive tubes, planter, pressing wheels, ...). The aim of sowing machines is that the seed as precisely placed in the ground in order to satisfy a set of plants per unit area. Also seeding depth should be adequate type of seeds we sow. Seed plates contributes to the universality of seeders, and they can be used for planting many crops. Pneumatic seeder has a number of advantages over the older mechanical seed drill and greatly contributes to the quality of sowing