MACHINE FOR SUBSOIL APPLICATION OF MINERAL FERTILIZERS Russian patent published in 1998 - IPC

FIELD: agricultural engineering, in particular, equipment for application of mineral fertilizers and microelements during basic soil cultivation. SUBSTANCE: machine has frame, carrier wheels, working tools for soil tillage, frame lifting mechanism, working tool depth adjustment mechanism, hitching mechanism, mineral fertilizer hopper, dosers, doser drive, fan with hydraulic drive, airducts, fertilizer guides, fertilizer flow dividers and fertilizer pipelines. Fan has air flow divider and individual airducts, each connected with fertilizer flow divider having mutually joined chamber and housing. Shields mounted within housing are adapted for simultaneous dividing of main fertilizer and air flows into additional flows with following narrowing of flows within housing and supplying fertilizer through fertilizer pipelines. Fertilizer pipelines are combined into bundles and mounted on rear side of tines and shoes of working tools. Lower ends of fertilizer pipelines are equally spaced along width of each working tool and provided with nozzles. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 7 cl, 16 dwg