2018 Fiscal Year Final Research Report
Study on improvement of decomposed granite soils with biochar and compost co-application
| Project/Area Number |
16K07952
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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 |
Rural environmental engineering/Planning
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
Kameyama Koji 国立研究開発法人農業・食品産業技術総合研究機構, 農村工学研究部門, 上級研究員 (90414432)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Keywords | バイオ炭 / 堆肥 / 混合施用 / 団粒形成 / 保肥性 / 保水性 |
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| Outline of Final Research Achievements |
It is reported that co-application of biochar and compost to soils can have positive synergy effects for soil aggregate formation and enhancing crop growth. Conversely, it is also reported that the co-application cannot have noticeable effects. These results suggest that effects of the co-application can be different from combination of biochar type, compost type and soil type. Therefore, we investigated effects of wood-dedived biochar and cattle manure compost co-application on physicochemical properties in a decomposed granite soil. As the result, the co-application synergistically improved nutrient retention capacity of the soil.
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| Free Research Field |
土壌物理
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| Academic Significance and Societal Importance of the Research Achievements |
客土が必要な農地は被災地等において増えることが想定される．本課題により，客土土壌等の生産性が低い土壌を対象に，バイオ炭を活用した急速熟畑化技術が確立されれば，これらの地域の農業復興に大きく貢献することができる．更に，バイオ炭の原料として有望な林地残材（間伐材など）の利用率は約1%で殆どが山林に放置されている．これら未利用バイオマスの新たな用途を見出すことにより，バイオマス利活用の促進に繋がると予想される．
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