Evaluation of Fertilizer Value of Biochars Using Water Plants
2011
Han, J.H., Sunchon National University, Sunchon, Republic of Korea | Seo, D.C., Sunchon National University, Sunchon, Republic of Korea | Kang, S.W., Sunchon National University, Sunchon, Republic of Korea | Choi, I.W., Sunchon National University, Sunchon, Republic of Korea | Jeon, W.T., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Kang, U.G., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Kang, S.J., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Heo, J.S., Gyeongsang National University, Jinju, Republic of Korea | Kim, S.D., Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment, Gwangju, Republic of Korea | Cho, J.S., Sunchon National University, Sunchon, Republic of Korea
To develop biochar for soil conditioner using water plants, characteristics of nutrients release of biochars were investigated under different water plants, manufacturing times and manufacturing temperatures. Under different water plants for manufacturing biochar, the concentrations of T-N and P₂O∧5 in the water with biochars were higher in the order of CRXDM greater than ZIZLA greater than PHRCO greater than TYHOR greater than MISSA. The concentrations of K₂O in the water were in the order of TYHOR ≒ CRXDM greater than ZIZLA greater than PHRCO greater than MISSA. Under different manufacturing times for biochar, the concentrations of T-N, P₂O∧5 and K₂O in the water with biochars were higher in the order of 2 hr greater than 30 min ≒ 1 hr. The concentrations of T-N, P₂O∧5 and K₂O in the water with biochars were on the order of 350℃ greater than 500℃ greater than 600℃ under different manufacturing temperatures. Total amounts of T-N and K₂O releases in the water with biochars were higher in the order of CRXDM greater than ZIZLA greater than PHRCO greater than TYHOR greater than MISSA. Using biochars by water plants, total amounts of P₂O∧5 releases in the water with biochars were on the order of CRXDM greater than ZIZLA greater than MISSA greater than PHRCO greater than TYHOR. The results of this study suggest that biochars by water plants can supply some of the nutrient requirements of crops and can be a valuable fertilizer.
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