Extension growth of young ash
and sycamore grown in farm forestry in Co. Sligo is strongly affected
by exposure. Ash is susceptible to terminal bud death resulting in much
forking, thus the
species requires regular pruning. It is suggested that:
a. ash and sycamore should not be planted in mixtures,
b. shelter (shelterbelts and/or nurse crops) should be
provided,
c. ash requires regular pruning,
d. seed source of planting material needs to be altered,
and
e. thinning regimes of ash and sycamore are species
specific.
It is stressed that quality crops of ash and sycamore
can only be achieved by careful silviculture (combination of shelter,
weed control, formative pruning and thinning) in conjunction with the
use of adequate planting material.
See publication below for full details:
Binggeli, P. and P. Blackstock (1999) Impact of exposure on extension
growth and stem quality of young ash and sycamore in farm forestry
plantations. Agroforestry Forum 9(3), 19-23.
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