Canopy management mature orchard canopy management – a 20 year grower’s perspective - warren...
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Transcript of Canopy management mature orchard canopy management – a 20 year grower’s perspective - warren...
![Page 1: Canopy management mature orchard canopy management – a 20 year grower’s perspective - warren elvery](https://reader033.fdocuments.in/reader033/viewer/2022061206/5482ce7f5806b5ed048b4724/html5/thumbnails/1.jpg)
Warren Elvery Victoria Park
Plantation
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Manager of Victoria
Park Plantation
Over 330 hectares in production ◦ Over 70,000 trees
◦ Average tree age is 20-25yo
◦ Spacing is 7m x 4m
Started career in macadamia production at age 18
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Variety
Region
Enterprise aims and goals ◦ Economics
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Have a plan and Start early!
Agronomic aims – ◦ Harvesting light Leaves
◦ Maintain ground cover ◦ Machinery access ◦ Pest management ◦ Nutrient requirements
Harvesting
light
Build
carbohydrate &
reserves
Produce
crop
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End tree phenomena
Yield per hectare = maximise
Inputs per hectare = minimise
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1. Tree training
2. Pruning for density
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Topping
Staghorning
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Sacrificial
Phasing out
Young trees - not touching
Trees starting to touch
Begin phasing out middle tree
Remove middle tree
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Reworking
Replanting
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Maintain alley ways
Looks good
“wall of death”
Remove new fruiting wood
Internal void
Time of year and staged
Positives Negatives
• Maintain access for machinery • Mechanical pruning • Low labour cost
• Wall of death • Internal void • Effective canopy distorted
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Shape the structure of the tree
Inter row growing limbs
Active canopy of limb
Opening a window in canopy
Positives Negatives
• Keeps internal canopy productive • Allows increased light penetration • Shapes the tree structure • Remove large unproductive limbs • Chipping limbs back onto orchard floor
• Hard work • Labour requirements • Time consuming • Each tree different
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Staggered ◦ 25%
◦ 50%
Individual trees
Whole row
Both
Active Canopy Volume
Large equipment required
Positives Negatives
• More light into canopy and orchard floor
• Capital costs (hire or purchase) •Stumps
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1. Topping
2. Stag Horning
3. Replant individual trees after storm damage
4. DO NOTHING
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Have a plan
Start early
Phase out trees
Focus on increasing active canopy volume (photosynthesising leaves)
Commit ◦ Making the decision is the hardest part ◦ Make the decision and stick to it ◦ Canopy Management is LONG TERM
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Questions?