Vineyard Management Flashcards
Site selection criteria
Environmental conditions
Business considerations
Grape variety
Environmental conditions (site selection)
Temp
Rainfall
Sunlight
Drainage
Soil fertility
Planting density
Training and trellising
Business considerations (site selection)
Proximity to infrastructure
Workforce availability
Accessibility for machinery
Cost of the land
Grape variety (site selection)
Must suit climate
Demand for grapes
Possible EU restrictions on varieties that can be used
New vineyard creation
Clear of existing vegetation
Test soil fertility and apply necessary fertilizers
Plant young vines (maybe pregrafted and in plastic sleeve)
Irrigate (if allowed)
Average vine replacement age
30 to 50 years
Effect of age on vines
Decreased yield
Increased disease risk
Fallow time
3 years after vines are dug up
Main vine management techniques
Training
Pruning
Trellising
Planting density
Main vine management goal
Maximize production of fruit at desired quality as economically as possible
Vine training
Shape of the permanent wood
Head training
Cordon training
Both can be high or low trained
Head training
Little permanent wood (possibly only trunk)
Either spur or replacement cane pruned
Cordon training
Trunk with on or more permanent horizontal arms (cordon)
Usually spur pruned
Takes longer to establish but is easier for machine harvesting
Vine pruning
The removal of unwanted leaves, canes, and permanent wood
Occurs every winter and summer
Winter pruning
Determines number and location of shoot forming buds in spring
Important that buds are not close together (helps with canopy management)
Spur
Replacement cane
Replacement cane pruning
One or two canes tied to trellis (Usually on head trained vines)
More complex than spur pruning
Requires large workforce to choose and train suitable canes
Guyot is example
Summer pruning
Trimming canopy
Restrict vegetative growth
Direct sugar production to grape
Leaf stripping to optimize sunlight exposure
Trellis
Permanent structure or stakes and wires
Supports replacement canes and vine’s growth
Beaujolais trellising
Usually untrellised
Head trained and spur pruned
Gobelet