農作業研究

さとうきび植付け作業の機械化に関する研究(1)

2芽苗繰出し機構の開発とその性能について

宮部芳照, 末吉武志, 嶽崎顕, 柏木純孝

1997 年 32 巻 3 号 p. 171-177
発行日: 1997/09/20
公開日: 2010/02/09

DOIhttps://doi.org/10.4035/jsfwr.32.171

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In order to mechanize the planting operations for sugar cane, an experimental feeding mechanism of two buds-seedcane was developed and the mechanism was examined the performances for practical use. The results obtained are as follows.
1) The higher feeding performance of the seedcane was obtained under the feeding roll speed of 8-16rpm, when the ratio of the feeding times of 6-10 pieces/3s was about 60%.
2) The proper gap between two rolls was about 1.5cm (this gap is equivalent to about 80% of the diameter of the stem) under the proper feeding pieces of 150-180 pieces/min.
3) The proper number of the shaking times of the shaking plate was 60-70 times/min, when the ratio of the feeding times of 6-10 pieces/3s was above 60%.
4) The higher filling performance of the seedcane into the groove of the delivery conveyor was obtained under the delivery conveyor speed of 8, 10, 12cm/s (the planting speed of 40, 50, 60cm/s, respectively), when the feeding roll speed was 10, 12, 14rpm, respectively.
5) The filling ratio of the seedcane (ratio of one seedcane 94-96%, zero seedcane 2-4%, plural seedcane 1-2%) was obtained under the delivery conveyor speed of 8-12cm/s (the feeding roll speed of 10, 12, 14rpm, respectively). This experimental feeding mechanism is of much practical use.

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農地還元による有機性廃物循環利用型地域システムの評価手法

山口絵美, 澁澤栄, 笹尾彰, 千賀裕太郎, 上條雄喜, 小林久

1997 年 32 巻 3 号 p. 179-190
発行日: 1997/09/20
公開日: 2010/02/09

DOIhttps://doi.org/10.4035/jsfwr.32.179

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Three papameters: waste utilization ratio (WUR), regional recycling ratio (RRR) and organic feedback ratio (OFR) were introduced to evaluate and develop the Sustainable Region System (SRS) using farm land organic waste management. Main results were obtained as follows.
1) WUR was defined as a ratio of the amount of utilizing organic waste to the net amount of organic waste produced in the relevant region, characterizing its agricultural system in linkage with organic waste management systems.
2) RRR was defined as a ratio of the amount of organic waste used in the relevant region to the total amount of utilizing organic waste, and this value was influenced by factors, such as performance of waste composting facilities and balance between demand and supply.
3) OFR meant a ratio of the amount of recycling organic fertilizer to the net amount of fertilizer applied in the field, and moreover it could show how much degree the fertilizer was supplied from the outside. The net amount of fertilizer applied was not usually equal to the minimum or profitable requirement of fertilizer in the field with specific soil conditions.
4) Using the parameters WUR, RRR and OFR, flows of organic waste in the region of both H-town in Tohoku and K-town in Kyusyu can be abstracted and analyzed towards the development of SRS.

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チューリップ球根生産者の労働負担の軽減に関する調査研究

(第1報)蓄積的疲労徴候インデックス(CFSI)への応答

舘澄男, 遠藤織太郎, 坂井直樹

1997 年 32 巻 3 号 p. 191-199
発行日: 1997/09/20
公開日: 2010/02/09

DOIhttps://doi.org/10.4035/jsfwr.32.191

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Reducion on Workload of the Farmer's Family Producing Tulip Bulbs (I) Analysis by CFSI Method
In this paper, the authors selected the farmer's families producing both tulip bulb and pady rice in Toyama prefecture, and analyzed the annual time budget based on a questionnaires for 30 males and 47 females by CFSI (Cumulative fatigue symptoms index) method. The obtained results were as follows.
1) In busy season, NF1 (Index of vitality), NF2-1 (Index of general feeling of fatigue) and NF4 (Index of labor volition) for males and NF2-1 for females exceeded the limits of 70 percentile which were thought as one of the most serious values on assessment of labor load. The same pattern was observed in off - season though the level of claim rate of ailment lowered.
2) When the farmer's group were classified into three sub-groups with cultivation area, such as below 0.5ha, 0.5-1ha and above 1ha. The four indices in the sub-group below 0.5ha and the three indices in the sub-group above 1ha exceeded the limits of 70 precentile.
3) In the persons remained a feeling of fatigue during long term, the claim rate of ailment in females were higher than that in males. In this case, the seven indices exceeded the limits of 70 precentile in off-season.

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農業労働の実態把握法(2)

吉田政雄

1997 年 32 巻 3 号 p. 201-226
発行日: 1997/09/20
公開日: 2010/02/09

DOIhttps://doi.org/10.4035/jsfwr.32.201

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