Hazelnut: Reshaping the Canopy, rethinking the future
Three years after the structural
pruning, the hazelnut orchard shows a clear transformation. The trunks have
strengthened, the canopies have become more compact, and, in the trees
observed, suckering has been significantly reduced. Once the few remaining
suckers are removed, a more orderly and accessible structure emerges, moving
toward a new vegetative and productive balance.
The management approach focuses
on short, well-distributed branches capable of supporting the crop. The weight
of the hazelnuts encourages branch bending, helping to moderate vertical
growth, while canopy management maintains adequate light penetration and
supports vegetative renewal. Oregon State University likewise emphasizes the
importance of light availability in hazelnut orchards, noting that excessively
severe heading cuts can stimulate vigorous regrowth and create renewed shading.
This transformation paves the way
for increasing planting density. By inserting one tree between the existing
trees, the aim is to create a continuous productive wall, taking advantage of
the north-south orientation while maintaining a clear corridor for machinery.
With row spacing of 4.5–5.0 metres and 2 metres between trees within the row,
planting density reaches approximately 1,000–1,110 trees per hectare.
The farm’s target yield of 3.5–4.0 kilograms per tree would correspond to approximately 3.5–4.4 tonnes of in-shell hazelnuts per hectare, a prospect that will need to be validated over several growing seasons. The farm intends to focus almost exclusively on the “Tonda di Giffoni” cultivar.
The farm plans to progressively convert the current 35–40 hectares, with a view to expanding to as much as 100 hectares and supplying the confectionery industry. Accessible canopies and regular rows can facilitate mechanization and, in the future, robotic harvesting and orchard management.
Assuming a price of €3.00/kg,
yields of 3.5–4.0 tonnes per hectare would generate a gross production value of
€10,500–€12,000/ha. After deducting the estimated €3,000–€4,000 in management
costs, a margin of approximately €6,500–€9,000 would remain, before any
additional costs not included in the estimate and depreciation.
The first signs are encouraging.
Production consistency, quality, and the labour hours saved will ultimately
determine the strength of the project. These are the results on which modern
hazelnut production must be built.
Editorial note:
Original content by Agronomist Vito Vitelli, developed and optimized
with the support of artificial intelligence tools for educational,
informational, and technical communication purposes.
Dissemination activity carried out in collaboration with:
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