Expansion in the forestry sector has been inhibited by both land and permit constraints and this has shifted the focus to achieving the highest possible yields per unit of land. This can be done by matching the best species to the growing site; making use of the best genetic material available for that species; buying quality seedlings and adopting the best silvicultural practices when planting. The guide below ensures you give your trees the best possible start!
Take into account the following when choosing a species:
More information, including a site-species matching table, is available for download on the Resources Page.
Tray Model 128
Tray Model 98
Tray Model 128 (Deep)
|Plug Volume (ml)||
|Plug Depth (mm)||
|Advantages:||Cheaper seedlings & transport||Improved field survival||Increased plug volume, but not as expensive as the M98.|
|Proven track record||Higher MAI/ha|
|Shorter seedling production time||Better nursery holdability|
|Disadvantages:||Higher transplant stress||Higher seedling cost||Tap root easily bent due to the plug shape|
|Higher blanking requirements||Higher transport cost|
|Less holdability in nursery||Trays are heavier to handle when planting|
Nursery growing periods for seedling orders placed:
|SPECIES||MODEL 128||MODEL 128 DEEP||MODEL 98|
|WATTLE||3.5 months||3.5 months||4 months|
|EUCALYPTUS SPECIES||3.5 months||3.5 months||4 months|
|PINUS ELLIOTTII & GREGGII||5 months||5 months||6 months|
|PINUS PATULA||7 months||7 months||8 months|
* If seedlings are required before the above growing periods, enquire about the availability of extra seedlings
Sutherland Seedlings strives to source the best genetic material available to the industry. The nursery works closely with most major forestry companies in South Africa.
Sutherland Seedlings has partnered with NCT Co-operative and the CSIR to produce E.grandis X E.nitens (GN) and E.grandis X E.urophylla (GU) cuttings.
These clones have been extensively trialled by NCT and have shown yield improvements of up to 30%, when planted on the correct site. Micro-hedges are housed in greenhouses so that all year round production is possible and the tip cuttings are rooted in heated greenhouses to improve the rooting percentage.
For the past three years the nursery has been bulking up their hedges and commercial quantities are now available on order. For more information on eucalyptus clones and their deployment, contact any member of the management team at Sutherland Seedlings.
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