Short-term effects of wood ash on soil solute and chemistry of leaves in a beech stand
Tothova, S.(Forest Research Institute Zvolen (Slovak Republic). Research Station)
The short-term effects of wood ash fertilization on chemistry of soil solute and leaves were investigated in 4-year-old beech stand (Fagus sylvatica L.) on dystric cambisol in Central Spis. Four plots - the control plot and three plots with different ash treatments (different dose, date and method of application) were established. Plate lysimeters were installed under the upper layer of soil in depth 2 cm and 20 cm on the control plot and plot PI with addition of wood ash 5 t/ha on the whole surface. Soil solute was collected in May_October 2002 every two weeks. Composite samples, which represent a one-month period, were analysed for pH, K, Ca, Mg and NO3-. The leaves were collected 4 or 10 months after the treatment and analysed on Ca, K, Mg, P, S, N and heavy metals Cd, Pb, Cr and Mg. In the ash treatment the content of macronutrient increased (mainly K, Ca). Addition of ash did not increase of the content heavy metals in leaves.
显示更多 [+] 显示较少 [-]