| Project/Area Number |
26450350
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Agricultural environmental engineering/Agricultural information engineering
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
齋藤 雅憲 秋田県農林水産部(農業試験場、果樹試験場、畜産試験場、水産振興センター及び林業研, 農業試験場, 研究員 (10578272)
進藤 勇人 秋田県農林水産部(農業試験場、果樹試験場、畜産試験場、水産振興センター及び林業研, 農業試験場, 主任研究員 (50390969)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | ネギ / 側条施肥 / 施肥溝切り機 / 根 / 根長密度 / 効率化 / 現地調査 / 長ネギ / 作溝チゼル / 施肥オープナ / 作業能率 / 膨軟化 / 生育 |
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| Outline of Final Research Achievements |
We developed a chisel and two fertilizing openers for a fertilizer-applicator ditcher to improve the work rate and nitrogen absorption. This study investigated the influence of a softened ditch bottom and drill fertilizing positions on Welsh onion root growth when using drill fertilizing cultivation systems with a prototype fertilizer-applicator ditcher. Results show that prototype fertilizer-applicator ditcher increased root length and root length density and decreased soil hardness on the ditch bottom of the soil because of its chisel action. The drill-fertilized block showed a lower rate of root distribution to reach the fertilizer position quickly. Each test block processed with a chisel showed a higher rate of root distribution in deep locations in the ditch. However, in non-fertilized areas left by a fertilizer-opener, gas phase was present in large quantities in soil buried by a fertilizer-applicator ditcher.
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