FIELD: agricultural engineering.
SUBSTANCE: machine has body with conveyor, grinding shaft, and screw-widener with multiple-thread coils of variable diameter. Multiple-thread helical coils have diameter reducing toward mid portion of grinding shaft. Grinding shaft is furnished with blades curved along parabolic lines for defining multiple-thread coils.
EFFECT: reduced consumption of power for distribution of organic fertilizers and improved and uniform distribution of fertilizers over field surface.
6 dwg
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