SHERRY - Growing environment and Grape growing - Vineyard management
5 important questions on SHERRY - Growing environment and Grape growing - Vineyard management
How is the trellising and mechanisation in the sherry area
- In the process of being transformed to accommodate mechanisation
- principal training system repalcement cane system = vara y pulgar
- cordon training and spur pruning increased > better for mechanisation
- VSP trellising > open canopy > easy for mechanisation
- but shading needed agains sunburn
- air circulation > reduces fungal diseases
- Within-row spacing tight (<1m), in between-row wider to allow tractors
- maximum yield 80 hl/ha, but more common 60-70 hl/ha
Where are most vineyards planted in Jerez
How is water from the winter rains kept in the vineyards in Jerez
- By digging troughs and gullies
- = aserpia
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What about diseases in vineyards in Jerez
- Hot and dry
- low rate of fungal diseases
- and moderating influence Atlantic Ocean > frost no issue
- Mildew in spring due to warm humid weather after rain
- VSP > air circulation > reduces fungal diseases
- European grapevine moth issue > pheromone traps used
How and when does the harvest take place in the Sherry area
- About 60% by machines, at night/early morning
- first week of August (inland vineyards) - second week of September (coastal)
- as early as possible > rot undesirable, especially for the biologically ages wines
- usually
- 12% potential alcohol
- 5 gr/L total acidity
- 3.3-3.5 pH
- Palomino looses acidity quickly in final ripening stage
- PX and Moscatel harvested slightly later to have a higher concentration of sugar in the grapes > drying process will be easier and quicker
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