3-91-4 木質燃焼灰の溶出試験における主要養分元素の溶出特性(Session3 バイオマス等,ポスター発表)

概要

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Potentialities of wood ashes for fertilizer were evaluated by three leaching tests using different eluting solvents: water, acetic acid, and hydrochloric acid. The most eluted macronutrient by hydrochloric acid on 19 wood combustion ashes from 13 pellet fuels was Ca, followed by K, Si, Mg, and P. Bark ashes were characterized by relatively high Ca and low K and Mg content compared to wood ashes. Overall, water/acetic acid soluble amount of K was high, while those of the other macroelements were extremely low. This suggests that wood combustion ashes would act as a quick-acting K fertilizer.
2011-08-09