수생식물을 이용하여 제조한 biochar의 비료학적 가치 평가 = Evaluation of Fertilizer Value of Biochars Using Water Plants

다국어 초록 (Multilingual Abstract)

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 P_2O_5 in the water with biochars were higher in the order of CRXDM > ZIZLA > PHRCO > TYHOR > MISSA. The concentrations of K_2O in the water were in the order of TYHOR ≒ CRXDM > ZIZLA > PHRCO > MISSA. Under different manufacturing times for biochar, the concentrations of T-N, P_2O_5 and K_2O in the water with biochars were higher in the order of 2 hr > 30 min ≒ 1 hr. The concentrations of T-N, P_2O_5 and K_2O in the water with biochars were on the order of 350℃ > 500℃ > 600℃ under different manufacturing temperatures. Total amounts of T-N and K_2O releases in the water with biochars were higher in the order of CRXDM > ZIZLA >PHRCO > TYHOR > MISSA. Using biochars by water plants, total amounts of P_2O_5 releases in the water with biochars were on the order of CRXDM > ZIZLA > MISSA >PHRCO > 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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