Development of Walking-type Fertilizer Applicator with Velocity Interlocking Device of Discharge

Abstract

The newly developed walking-type fertilizer applicator has a fluted roll type metering device and a velocity interlocking device of fertilizer discharge. The fluted roll type metering device, adopted in developed fertilizer applicator, was equipped with rubber fluted roll with four impellers, and could meter the fertilizers of various physical properties precisely. In the range of 80rpm or less of rotational speed of fluted roll, there were proportional relationships between the rotational speeds of roll and the amount of discharge. The experimental result of field test showed that the velocity interlocking device could spread the fertilizer evenly in the field under the condition of the wide variety of work speed. The coefficients of variation were less than 4%.