Fig. 3. Leachate volume (mm, bars), N concentration (mg L-1, dots), and amount (kg ha-1, bars) of N leached from birch and pine containers from May to October in 1995.
Fig. 3. Leachate volume (mm, bars), N concentration (mg L-1, dots), and amount (kg ha-1, bars) of N leached from birch and pine containers from May to October in 1995.