| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
Toward the use of organic matter as an alternative to chemical fertilizers which have recently increased in price, we investigated the root production and mortality of paddy rice using organic matter and crop production and carbon sequestration in relation to the dynamics. In the results, the production and mortality of root of rice using organic fertilizer were more than using chemical fertilizer. Using RothC models with our data, the evaluation of soil carbon sequestration was changed depending on these differences in roots. Our results suggests the effects of root dynamics is greater than the previous evaluations.
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