| Autor: |
NARONG TOUCH, TAKAHIKO NAKAMURA |
| Předmět: |
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| Zdroj: |
International Journal of Environmental & Rural Development; Dec2022, Vol. 13 Issue 2, p49-54, 6p |
| Abstrakt: |
Increasing the productivity of organic farming is a strategy to achieve sustainable agriculture. However, it is necessary to maintain soil redox potential (ORP) in continuously oxidized conditions and to promote bacterial metabolisms in soils to increase productivity. Previously, applying microbial fuel cell technology (MFCT) into sediment improved ORP and benthos survival in the sediment. It is thought that these positive effects of MFCT can also provide many benefits for soil cultivation in organic farming. This study aims to examine the changes in the biochemical properties of soil following MFCT application. In laboratory experiments, MFCT was applied to cow manure compost-mixed andosol. An anode (oxidation reaction) and a cathode (reduction reaction) were installed in the soil, and a 1.5-V solar cell was used to produce an electric current between the two electrodes. Three months after MFCT application, the chemical properties and adenosine triphosphate (ATP) of the soil were measured. Our results showed an electric potential distribution in the soil, and the soil located within 20 cm of the electrode was strongly affected by the electrode reaction. This suggests that applying MFCT to soil can change the soil's redox conditions. The ATP and ammonium concentrations increased, suggesting bacterial activation and enhanced organic matter decomposition in the soil. It is recommended that farmers should apply MFCT into soils for enhancing bacterial metabolism and increasing organic matter decomposition in soils. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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