| 摘要 |
PROBLEM TO BE SOLVED: To reduce an amount of a fertilizer or a chemical supplied to a farm field with regard to a supply position of individual seedlings or rice seeds to the farm field.SOLUTION: Intermittent feed mechanisms 70 are provided in such a manner that one supply position of seedlings or rice seeds supplied by a planting/sowing device is set to be a first reference position, and a supply position of a fertilizer or a chemical by a granular feeder, which is a position nearest to the first reference position, is set to be a second reference position. Supply operation of seedlings or rice seeds or a fertilizer or a chemical is controlled in such a manner that a separation distance from the first reference position to the second reference position is shorter than a separation distance from supply positions of seedlings or rice seeds adjacent to each other in the front or back of a traveling direction with regard to the first reference position to the second reference position, and a separate distance from supply positions of seedlings or rice seeds adjacent to each other in a right/left direction with regard to the first reference position to the second position. |
