| 摘要 |
PURPOSE:To facilitate control of the output of the fertilizer from the distributor, by providing the input unit for inputting the particle sizes of fertilizer and fertilizing conditions and the arithmetic unit which has an arithmetic means to calculate an appropriate output amount from the distributor on the basis of the information from the input unit. CONSTITUTION:The particle size of fertilizer is selected, and the key for the particle size-inputting unit 31 is pushed in the arithmetic unit 29. Thus, the lamp 38a corresponding to the amount of fertilizer to be applied is switched on. The amount of fertilizer is input with ten-key pad 32 and input key 34 is pushed, when the value is correct. Then, the lamp 38b corresponding to the interval between seedlings to be planted and similar operations is carried out. Then, the lamp 38c corresponding to the kinds of fertilizers is switched on. The values corresponding to individual fertilizers are input. After completion of these inputting operations, the key 35 for opening the rolls to a set value is pushed. In accordance with these input values, the roll opening for distributing fertilizer 14 is shown in the display 36 and simultaneously the shaft 24 to operate the fertilizer distribution is driven.
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