| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Outline of Final Research Achievements |
The bioavailability of heavy metal in agricultural soils is a great health concern due to potential risks through exposure to agricultural foods produced in heavy metal contaminated fields. Biochars are known to be effective in the adsorption of heavy metals. Thus, the objective of this study was to investigate the effects of biochar incorporation on crop cadmium uptake in a cadmium-contaminated agricultural soil. Our experimental results indicated that biochars, especially chicken manure-derived biochar, can immobilize soil cadmium chiefly through the precipitation reaction associated with increasing soil pH. Consequently, cadmium bioavailability in cadmium-contaminated agricultural soils can be decreased with incorporation of biochars.
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