| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems wherein although a conventional chemical distributor having one chemical hopper, a horizontal groove-roll-type delivering part, and a distribution part installed in the lower part directly distributes delivered chemicals on the soil in a range of the whole width of a rice transplanter, the chemicals are distributed even to an unnecessary range, for example, in an operation at the vicinity of a levee. SOLUTION: The chemical distributor 140 has clutch mechanisms 90L and 90R installed in the center part of the chemical distributor 140 so that two delivering rolls 45L and 45R may be independently driven to enable partial distribution. COPYRIGHT: (C)2007,JPO&INPIT
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