タイトル |
隔年交互結実栽培の45°夏季せん定は背負い式ヘッジトリマーで作業負担が小さい |
担当機関 |
佐賀上場営農セ |
研究期間 |
2003~2007 |
研究担当者 |
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発行年度 |
2008 |
要約 |
早生、普通ウンシュウの隔年交互結実栽培の遊休年の夏季せん定は、樹高の高低にかかわらず数種のエンジン付きヘッジトリマーの中では、背負い式のヘッジトリマーで作業負担が小さい。
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背景・ねらい |
隔年交互結実栽培では遊休年の盛夏期にせん定を実施し、次年度の結果枝を確保する。省力化のためにエンジン付きヘッジトリマーによるせん定により作業時間の短縮は図れるが、重く操作しづらく重労働である。そこで、より労働負担の少ないヘッジトリマーを選定する。
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成果の内容・特徴 |
- エンジン付きヘッジトリマーを用いて樹冠頂部から45°程度の角度で直線的に刈り込む夏季せん定は、樹高の高低にかかわらず背負い式ヘッジトリマーが最も心拍増加率、作業負荷が小さい(表1、表2、表3、図1、図2)。
- 上肢の作業姿勢でAC評価が低く負担が小さいのは、いずれの樹高でも背負い式ヘッジトリマーである(表4)。
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成果の活用面・留意点 |
- 労働負担評価は岩手県農業研究センターで作成した方法(八重樫2001)で、作業姿勢評価はOWAS (Ovak's Working Analyzing Posture System)法(Stoffert 1985)を用いた。
- 背負い式ヘッジトリマーはエンジン部からワイヤーシャフトが繋がっているので、従来の樹型では操作性が悪くなる。
- 幼木には短ヘッジトリマーの操作性が優れている。
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図表1 |
![223600-1.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/223600-1.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIhAJYQJQVKfifC7daicF1LgLUDSa91h0itnnn%2FkistqQVQAiAY98xxS0dpb7fhmUQ3I5Od5weRBTLeTCnfHGiTxzaXDCqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMODmOHlA9OFaOUryCKu0DoMcivagWTKnpJMhmQDD5cY1GJiUBAm3lO5hQ8EEuzIbeGI0yGKXLf6tKNpt3Mqa%2BKXKiAQsb2EWY2PBH4kf33bqANuMJZTYYW8f2rQBDXudeQAyNPhXyZtXObYgRAxKWkHvjfFXU5T81q2ug%2FYctk%2FthuxDqJAsm3pz9893K2YHyqUHDpyCXSj4nf8tpM%2FuobhUWe48IAiznWKlaapz6%2Fe%2BGbqDVB%2F7xrQisx%2Bkv%2B3smjkHrPcpjVnCyzuBmpmb8s78rCa1n259vu%2F0bIURz9Vhd%2BUL2cNPE9IF6BH9H1mDBVtn0nbd098O8daoRR%2BmRngLcHYaygag4rIXWZFMdzJKHFpU5DD4m2zFvF1GekrODsNRuJTFixnqhycCjlxRsdZgw86u%2BXuNDNo3%2FMiL8tSQkMtRYt3bS04N5e55t9a5ptDYK%2FG%2BtFbhOOqhm%2FHUqrHdwa3Q2rfFocKuJSfsbOF0ap61qDtgZ9wVicBeKVOainhgne%2FdlOz%2FtEzMgOYdCJSX0e%2BGg15Wc065hxtZ2PTe3AahDNnns9vVMZRoYRM2ay4bonJr23%2Bx24nNr1D4i6rxcqWdFm3jqmeCK4RtSOnWZel0iUv5tjHAJwfT5Y%2BJSI6qpTqEwhdTEuRTg4UVoPSC9Y0ZoBxYUhcfcQDCJ%2BMWzBjqmAdW%2FGmbYWndAHWwSfJDT0dIS%2FZjVKre2shyd1n64eCjarVTrI18EZdPUAV1F6HnOzAeg02W5qNosAMlmLAGQd6n2yKB%2BP3vxFzjkQzqn73aEgFuLu%2F%2BQN9SO%2BZDQSFRXrrft2dtAw6wSjGOdU5ugVO4h%2Fx5RUnjHYnWkZWzrC8dW%2FG%2BaCnI6fOjwFKy8py2WXY5wN%2FwYKhZW%2BOEp9uqKwLcQMUxRHYY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6VCZLNT7%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T122840Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=cd60a6517ded8c69bd83dbead21d4352e22605a5f85ab6f647952af3a84b46e3) |
図表2 |
![223600-2.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/223600-2.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIhAJYQJQVKfifC7daicF1LgLUDSa91h0itnnn%2FkistqQVQAiAY98xxS0dpb7fhmUQ3I5Od5weRBTLeTCnfHGiTxzaXDCqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMODmOHlA9OFaOUryCKu0DoMcivagWTKnpJMhmQDD5cY1GJiUBAm3lO5hQ8EEuzIbeGI0yGKXLf6tKNpt3Mqa%2BKXKiAQsb2EWY2PBH4kf33bqANuMJZTYYW8f2rQBDXudeQAyNPhXyZtXObYgRAxKWkHvjfFXU5T81q2ug%2FYctk%2FthuxDqJAsm3pz9893K2YHyqUHDpyCXSj4nf8tpM%2FuobhUWe48IAiznWKlaapz6%2Fe%2BGbqDVB%2F7xrQisx%2Bkv%2B3smjkHrPcpjVnCyzuBmpmb8s78rCa1n259vu%2F0bIURz9Vhd%2BUL2cNPE9IF6BH9H1mDBVtn0nbd098O8daoRR%2BmRngLcHYaygag4rIXWZFMdzJKHFpU5DD4m2zFvF1GekrODsNRuJTFixnqhycCjlxRsdZgw86u%2BXuNDNo3%2FMiL8tSQkMtRYt3bS04N5e55t9a5ptDYK%2FG%2BtFbhOOqhm%2FHUqrHdwa3Q2rfFocKuJSfsbOF0ap61qDtgZ9wVicBeKVOainhgne%2FdlOz%2FtEzMgOYdCJSX0e%2BGg15Wc065hxtZ2PTe3AahDNnns9vVMZRoYRM2ay4bonJr23%2Bx24nNr1D4i6rxcqWdFm3jqmeCK4RtSOnWZel0iUv5tjHAJwfT5Y%2BJSI6qpTqEwhdTEuRTg4UVoPSC9Y0ZoBxYUhcfcQDCJ%2BMWzBjqmAdW%2FGmbYWndAHWwSfJDT0dIS%2FZjVKre2shyd1n64eCjarVTrI18EZdPUAV1F6HnOzAeg02W5qNosAMlmLAGQd6n2yKB%2BP3vxFzjkQzqn73aEgFuLu%2F%2BQN9SO%2BZDQSFRXrrft2dtAw6wSjGOdU5ugVO4h%2Fx5RUnjHYnWkZWzrC8dW%2FG%2BaCnI6fOjwFKy8py2WXY5wN%2FwYKhZW%2BOEp9uqKwLcQMUxRHYY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6VCZLNT7%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T122840Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=eb89bb57f53e04fb41c938f6c5c92d928791fa3a1db544ff83768f5c19fc885c) |
図表3 |
![223600-3.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/223600-3.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIhAJYQJQVKfifC7daicF1LgLUDSa91h0itnnn%2FkistqQVQAiAY98xxS0dpb7fhmUQ3I5Od5weRBTLeTCnfHGiTxzaXDCqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMODmOHlA9OFaOUryCKu0DoMcivagWTKnpJMhmQDD5cY1GJiUBAm3lO5hQ8EEuzIbeGI0yGKXLf6tKNpt3Mqa%2BKXKiAQsb2EWY2PBH4kf33bqANuMJZTYYW8f2rQBDXudeQAyNPhXyZtXObYgRAxKWkHvjfFXU5T81q2ug%2FYctk%2FthuxDqJAsm3pz9893K2YHyqUHDpyCXSj4nf8tpM%2FuobhUWe48IAiznWKlaapz6%2Fe%2BGbqDVB%2F7xrQisx%2Bkv%2B3smjkHrPcpjVnCyzuBmpmb8s78rCa1n259vu%2F0bIURz9Vhd%2BUL2cNPE9IF6BH9H1mDBVtn0nbd098O8daoRR%2BmRngLcHYaygag4rIXWZFMdzJKHFpU5DD4m2zFvF1GekrODsNRuJTFixnqhycCjlxRsdZgw86u%2BXuNDNo3%2FMiL8tSQkMtRYt3bS04N5e55t9a5ptDYK%2FG%2BtFbhOOqhm%2FHUqrHdwa3Q2rfFocKuJSfsbOF0ap61qDtgZ9wVicBeKVOainhgne%2FdlOz%2FtEzMgOYdCJSX0e%2BGg15Wc065hxtZ2PTe3AahDNnns9vVMZRoYRM2ay4bonJr23%2Bx24nNr1D4i6rxcqWdFm3jqmeCK4RtSOnWZel0iUv5tjHAJwfT5Y%2BJSI6qpTqEwhdTEuRTg4UVoPSC9Y0ZoBxYUhcfcQDCJ%2BMWzBjqmAdW%2FGmbYWndAHWwSfJDT0dIS%2FZjVKre2shyd1n64eCjarVTrI18EZdPUAV1F6HnOzAeg02W5qNosAMlmLAGQd6n2yKB%2BP3vxFzjkQzqn73aEgFuLu%2F%2BQN9SO%2BZDQSFRXrrft2dtAw6wSjGOdU5ugVO4h%2Fx5RUnjHYnWkZWzrC8dW%2FG%2BaCnI6fOjwFKy8py2WXY5wN%2FwYKhZW%2BOEp9uqKwLcQMUxRHYY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6VCZLNT7%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T122840Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=d53001aec7ec6861d0fe64597c15ce79ebc4e96abec2093c45f2a5c82f6d47ba) |
図表4 |
![223600-4.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/223600-4.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIhAJYQJQVKfifC7daicF1LgLUDSa91h0itnnn%2FkistqQVQAiAY98xxS0dpb7fhmUQ3I5Od5weRBTLeTCnfHGiTxzaXDCqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMODmOHlA9OFaOUryCKu0DoMcivagWTKnpJMhmQDD5cY1GJiUBAm3lO5hQ8EEuzIbeGI0yGKXLf6tKNpt3Mqa%2BKXKiAQsb2EWY2PBH4kf33bqANuMJZTYYW8f2rQBDXudeQAyNPhXyZtXObYgRAxKWkHvjfFXU5T81q2ug%2FYctk%2FthuxDqJAsm3pz9893K2YHyqUHDpyCXSj4nf8tpM%2FuobhUWe48IAiznWKlaapz6%2Fe%2BGbqDVB%2F7xrQisx%2Bkv%2B3smjkHrPcpjVnCyzuBmpmb8s78rCa1n259vu%2F0bIURz9Vhd%2BUL2cNPE9IF6BH9H1mDBVtn0nbd098O8daoRR%2BmRngLcHYaygag4rIXWZFMdzJKHFpU5DD4m2zFvF1GekrODsNRuJTFixnqhycCjlxRsdZgw86u%2BXuNDNo3%2FMiL8tSQkMtRYt3bS04N5e55t9a5ptDYK%2FG%2BtFbhOOqhm%2FHUqrHdwa3Q2rfFocKuJSfsbOF0ap61qDtgZ9wVicBeKVOainhgne%2FdlOz%2FtEzMgOYdCJSX0e%2BGg15Wc065hxtZ2PTe3AahDNnns9vVMZRoYRM2ay4bonJr23%2Bx24nNr1D4i6rxcqWdFm3jqmeCK4RtSOnWZel0iUv5tjHAJwfT5Y%2BJSI6qpTqEwhdTEuRTg4UVoPSC9Y0ZoBxYUhcfcQDCJ%2BMWzBjqmAdW%2FGmbYWndAHWwSfJDT0dIS%2FZjVKre2shyd1n64eCjarVTrI18EZdPUAV1F6HnOzAeg02W5qNosAMlmLAGQd6n2yKB%2BP3vxFzjkQzqn73aEgFuLu%2F%2BQN9SO%2BZDQSFRXrrft2dtAw6wSjGOdU5ugVO4h%2Fx5RUnjHYnWkZWzrC8dW%2FG%2BaCnI6fOjwFKy8py2WXY5wN%2FwYKhZW%2BOEp9uqKwLcQMUxRHYY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6VCZLNT7%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T122840Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=e8a88af103344c7973527861bb0829c885ed865297442cdf59493090d3897928) |
図表5 |
![223600-5.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/223600-5.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIhAJYQJQVKfifC7daicF1LgLUDSa91h0itnnn%2FkistqQVQAiAY98xxS0dpb7fhmUQ3I5Od5weRBTLeTCnfHGiTxzaXDCqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMODmOHlA9OFaOUryCKu0DoMcivagWTKnpJMhmQDD5cY1GJiUBAm3lO5hQ8EEuzIbeGI0yGKXLf6tKNpt3Mqa%2BKXKiAQsb2EWY2PBH4kf33bqANuMJZTYYW8f2rQBDXudeQAyNPhXyZtXObYgRAxKWkHvjfFXU5T81q2ug%2FYctk%2FthuxDqJAsm3pz9893K2YHyqUHDpyCXSj4nf8tpM%2FuobhUWe48IAiznWKlaapz6%2Fe%2BGbqDVB%2F7xrQisx%2Bkv%2B3smjkHrPcpjVnCyzuBmpmb8s78rCa1n259vu%2F0bIURz9Vhd%2BUL2cNPE9IF6BH9H1mDBVtn0nbd098O8daoRR%2BmRngLcHYaygag4rIXWZFMdzJKHFpU5DD4m2zFvF1GekrODsNRuJTFixnqhycCjlxRsdZgw86u%2BXuNDNo3%2FMiL8tSQkMtRYt3bS04N5e55t9a5ptDYK%2FG%2BtFbhOOqhm%2FHUqrHdwa3Q2rfFocKuJSfsbOF0ap61qDtgZ9wVicBeKVOainhgne%2FdlOz%2FtEzMgOYdCJSX0e%2BGg15Wc065hxtZ2PTe3AahDNnns9vVMZRoYRM2ay4bonJr23%2Bx24nNr1D4i6rxcqWdFm3jqmeCK4RtSOnWZel0iUv5tjHAJwfT5Y%2BJSI6qpTqEwhdTEuRTg4UVoPSC9Y0ZoBxYUhcfcQDCJ%2BMWzBjqmAdW%2FGmbYWndAHWwSfJDT0dIS%2FZjVKre2shyd1n64eCjarVTrI18EZdPUAV1F6HnOzAeg02W5qNosAMlmLAGQd6n2yKB%2BP3vxFzjkQzqn73aEgFuLu%2F%2BQN9SO%2BZDQSFRXrrft2dtAw6wSjGOdU5ugVO4h%2Fx5RUnjHYnWkZWzrC8dW%2FG%2BaCnI6fOjwFKy8py2WXY5wN%2FwYKhZW%2BOEp9uqKwLcQMUxRHYY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6VCZLNT7%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T122840Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=503a4ad5b8b6132b7380069807a6fb128b2da1f17ab15f041393c206b091f32d) |
図表6 |
![223600-6.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/223600-6.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIhAJYQJQVKfifC7daicF1LgLUDSa91h0itnnn%2FkistqQVQAiAY98xxS0dpb7fhmUQ3I5Od5weRBTLeTCnfHGiTxzaXDCqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMODmOHlA9OFaOUryCKu0DoMcivagWTKnpJMhmQDD5cY1GJiUBAm3lO5hQ8EEuzIbeGI0yGKXLf6tKNpt3Mqa%2BKXKiAQsb2EWY2PBH4kf33bqANuMJZTYYW8f2rQBDXudeQAyNPhXyZtXObYgRAxKWkHvjfFXU5T81q2ug%2FYctk%2FthuxDqJAsm3pz9893K2YHyqUHDpyCXSj4nf8tpM%2FuobhUWe48IAiznWKlaapz6%2Fe%2BGbqDVB%2F7xrQisx%2Bkv%2B3smjkHrPcpjVnCyzuBmpmb8s78rCa1n259vu%2F0bIURz9Vhd%2BUL2cNPE9IF6BH9H1mDBVtn0nbd098O8daoRR%2BmRngLcHYaygag4rIXWZFMdzJKHFpU5DD4m2zFvF1GekrODsNRuJTFixnqhycCjlxRsdZgw86u%2BXuNDNo3%2FMiL8tSQkMtRYt3bS04N5e55t9a5ptDYK%2FG%2BtFbhOOqhm%2FHUqrHdwa3Q2rfFocKuJSfsbOF0ap61qDtgZ9wVicBeKVOainhgne%2FdlOz%2FtEzMgOYdCJSX0e%2BGg15Wc065hxtZ2PTe3AahDNnns9vVMZRoYRM2ay4bonJr23%2Bx24nNr1D4i6rxcqWdFm3jqmeCK4RtSOnWZel0iUv5tjHAJwfT5Y%2BJSI6qpTqEwhdTEuRTg4UVoPSC9Y0ZoBxYUhcfcQDCJ%2BMWzBjqmAdW%2FGmbYWndAHWwSfJDT0dIS%2FZjVKre2shyd1n64eCjarVTrI18EZdPUAV1F6HnOzAeg02W5qNosAMlmLAGQd6n2yKB%2BP3vxFzjkQzqn73aEgFuLu%2F%2BQN9SO%2BZDQSFRXrrft2dtAw6wSjGOdU5ugVO4h%2Fx5RUnjHYnWkZWzrC8dW%2FG%2BaCnI6fOjwFKy8py2WXY5wN%2FwYKhZW%2BOEp9uqKwLcQMUxRHYY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6VCZLNT7%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T122840Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=a6871dba7a23d3bc92b76052c5953027674b20bfdb3e9277073890d07cfc270e) |
カテゴリ |
省力化
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