| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Outline of Final Research Achievements |
We tried to possible effective use of biomass ash and seaweed as a potassium fertilizer. To evaluate the concentration of potassium in the ash, we collected the ash from different position of the biomass power station. The highest concentration of potassium was observed in the ash collected from the bug filter. The concentration of potassium in the ash depended on the burning temperature. Increase of the temperature decreased the concentration of potassium in the ash. The dominant seaweed collected from Nakaumi Sea was Gracilaria (Gracilaria vermiculophylla) which include 10% of potassium. When the ash and seaweed were applied to the soil as potassium fertilizer in the pot experiment, the growth and potassium concentration of komatuna and spinach comparable to potassium chloride. These results suggest that biomass ash and seaweed could reuse as the potassium fertilizer and the reuse of those should be contribute to the efforts to save potassium resources.
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