Page 157 - Tài liệu cây cảnh Bonsai4me Bonsai Basics
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Add realistic movement to your branches and trunks
                    · Make sharp bends at leaf joints and where secondary branches grow; this is
               where  tree  branches  naturally  have  a  change  in  direction.  Bends  made  in  the
               internodes don't look as natural.
                    · Add movement so that secondary/sub branches are on the outside of the
               bend, not the inside.
                    ·  On  deciduous  species  in  particular,  make  sure  you  add  movement  to  all
               straight sections of the branch.
                    · Don't just create movement from left to right; make sure the branch also
               moves up and down as well.
                    Wiring does cause a degree of stress to a tree

                    · However if allowed time to recover without any further work being carried
               out, all bonsai respond well to wiring. Don't wire unhealthy or weak trees as it
               will delay recovery.
                    It is often advised that when wiring the trunk of a tree, the start of the coil is
               anchored into the soil and roots of the tree. Personally I dislike this technique as
               the anchorage is poor and the wire will often move and disturb the roots as the
               coil around the upper trunk is made. Unless movement is absolutely necessary in
               the first few inches of the trunk, I would suggest keeping the entire coil of wire
               above soil level.

                    When to wire your tree
                    With  the  large  number  of  tree  species  commonly  used  for  bonsai  and  the
               wide variation of climates in which readers will be wiring, it is impossible to
               state exactly when your tree should be wired. There are also pros and cons of
               wiring  at  any  particular  time  of  the  year  with  any  particular  type  of  bonsai.
               Theoretically, most tree species can be wired at most times of the year though
               trees wired during the Winter may need frost protection in certain climates.
                    I  am  therefore  listing  a  number  of  factors  that  should  be  taken  into
               consideration when deciding at which to wire your tree;
                    · The only time that wiring can negatively impact the health of your tree to a
               large degree is during Winter, in areas where temperatures regularly drop below

               -10°C/approx 15°F. In temperatures this cold, any fractures that have not healed
               will be exposed to the cold and possible future dieback of the branch. If your tree
               still carries wire at this time of year, give it frost protection below -10°C.
                    ·  In  warmer  climates,  the  best  time  to  wire  deciduous  trees  is  just  as  the
               leaves  fall  in  Autumn.  With  the  branches  bare  it  is  much  easier  to  wire  and
               adjust the branches with a complete view of the tree. The branches should heal
               all  but  the  largest  cracks  or  severe  bends  before  the  tree  becomes  completely
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