| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Application of biochar in rice paddy field tended to increase or decrease in CH4 and N2O emissions due to acceleration of soil reduction condition by the biochar application.
Under the field condition, N2O emission decreased because of soil aeration by biochar application, while CH4 emission increased due to the anaerobic decomposition of rice straw by the combination of rice straw and biochar. Biochar application in rice paddy field made 2 year's Global Warming Potential half compared in conventional cultivation practice, and that effect potentially continue for 20 years. Because effects of biochar application on brown rice yield was not observed, biochar application will not influence on rice grain production.
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