Germany Flashcards
In which latitude do most of Germanys vineyards lie? What effect does this have on viticulture?
With the exception of Baden, between 49-50°N, making them amongst the world’s most northern, making it a cool continental climate.
At this latitude, site selection is essential. Most vineyards are situated along the Rhine and its tributaries, providing a vital role in radiating heat; moderating temperature, and extending the growing season. The best vineyards are often on steep, south facing slopes to maximise sun exposure (some of them are extremely sleep, reaching gradients of 70% overlooking the mosel).
What is each season like in Germany?
Winters can be very cold, usually cold enough for Eiswein production.
In spring, frosts are a major risk, although this is mitigated by the rivers and planting on slopes.
Summers are warm but also wet, average rainfall is 500-800mm but much of it falls in summer: increases risk of fungal disease, dilution, and in storms, hail.
Autumn’s are long and dry, allowing for long ripening periods during which grapes can develop high levels of sugar for Prädikatswein, and the morning mists along the river are ideal for botrytis development.
Which mountain ranges influence viticulture? How?
The Taunus and Haardt, which shelter the vineyard areas from cold winds and the worst of the rain. At high latitudes, vineyards are planted at relatively low altitudes, mainly 200m.
Which region has a noticeably different climate?
Baden. It’s farther south, stretching towards the Swiss border. Its noticeably warmer, drier and sunnier, though spring frosts can still pose a problem in cooler areas.
What soil type can you find in the Mosel and Ahr?
Dark-coloured slate that retains heat in the day and re-radiates it at night, playing a key role of ripening in these cooler regions.
What soil type can you find in Baden, Pfalz, Franken, and the Rheinhessen? What do you often find planted here?
Significant pockets of calcerous soils. Often planted with Spätburgunder, Weissburgunder and Chardonnay, or Silvaner in Franken.
What soil type does Grauburgunder prefer?
Heavy clay.
What interest is growing, regarding different soil types?
Producers are paying attention to how different varieties, especially Riesling, perform differently and show varying flavour profiles when grown in different soil types.
What is an issue on the steepest slopes?
Eg those in the Mosel and Rheingau, erosion is a major issue, and vineyard owners are often forced to winch soil and rocks back up the slopes, adding to cost.
How many ha under vine is there? How much wine does this produce?
100,000, giving Germany the 7th largest area under vine in Europe.
Average production is 9m hL in recent years.
What yields are permitted across the different categories of German production? What yields do regions average?
In Pfalz and Baden average yields are over 100hL/ha (although this varies between vintage and region), though they were higher. Since the 1980s Germany has been forced to impose lower maximum yields by EU legislation. While these vary between region, they’re still around 150hL/ha for Deutscher Wein and Landwein, and 105hL/ha for Qualitatswein.
Quality minded producers work with much lower yields.
How has vintage variation been affecting grape growing? What trend is this going in? Why?
In the coolest sites and years, grapes can struggle to fully ripen. However, vintage variation has been reducing in recent years, and while that’s been partly due to climate change, there has also been significant advances in vineyard management techniques, led by various research institutes. Improvements have been by choosing better clonal selection (especially for black varieties), summer pruning, green harvesting and selective hand harvesting.
What is a key consideration of canopy management?
Maximising sunlight exposure and improving air circulation to decrease the risk of fungal diseases caused by wet summers.
How are vines typically trained?
On the slopes, vines were traditionally staked individually with canes tied at the top. However, this method is labour intensive and requires skills that are gradually being lost. So, as a result of Flurbereinigung, all but the steepest vineyards now use single and double replacement-cane pruning with VSP and Pendelbogen.
What is Pendelbogen?
Replacement cane pruning with the canes arched in the trellis. The arching of the cane is thought to improve the flow of sap in the vine and increase the number of viable buds, in turn increasing yields.