BARK - John Turner presentation (Hills Laboratories)
The following link is to the
Power Point Presentation given at an NCGA Field-day on 5th. October 2010 by
John Turner. John Turner is a consultant for Hills Laboratories.
Some of the important points
raised by John Turner included:
- fresh bark often contains high levels of sap and turpentines which may be harmful to plants. "Composting" the bark through a treatment of nitrogen and lime will reduce these problems.
- bark chips which are produced by a rubbing process rather than a hammer mill will generally produce a "stronger" bark as it will have more long fibres
- the best bark for orchid growing will normally come from older trees and from the stump area of the tree
- fresh bark often contains high levels of sap and turpentines which may be harmful to plants. "Composting" the bark through a treatment of nitrogen and lime will reduce these problems.
- bark chips which are produced by a rubbing process rather than a hammer mill will generally produce a "stronger" bark as it will have more long fibres
- the best bark for orchid growing will normally come from older trees and from the stump area of the tree
