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yield per hectare

yield per hectare (GB)
See below earnings,

Term for the yield of grapes or grapes in the vintage, usually expressed in hectoliters grape or wine per hectare or in kilograms of grapes per hectare. Is overseas too tons / acre common. This is also called wine law Guideline, expressed as maximum yield in hectoliters per hectare, used for certain wine quality levels and can vary considerably depending on the country, wine-growing region, individual locations or even certain wines. There has been an extreme reduction in vine density over the past two millennia. The Romans still recommended 50,000 vines per hectare; this precluded mechanical processing of the vineyard from the outset. In the middle of the 19th century, the density averaged 20,000 vines per hectare, with yields of a maximum of 40 hectoliters per hectare. Today, the vines (different for each country and wine region, as well as depending on any regional requirements) are planted at a distance of 1.5 to 2 meters.

Grapes in different colors

Yields per vine

In general, it is common to plant an average of 5,000 vines per hectare (see below training system ). On average, a vine yields for those with reduced yield quality wine 1.5 to 2.5 kg of grapes, that makes 1.5 to 2 bottles of wine with 0.75 l each. For specialties or predicates such as Beerenauslese. Trockenbeerenauslese or Eiswein, it is much less. With the grape varieties grown in Germany and Austria, with a normal ripeness of 100 kilograms of grapes, an average of about 55 to 75 liters must expect. The yield and the quality of the grapes in the vineyard are controlled by the winemaker through various measures throughout the year, including among others pruning and foliage care, such as thin out (Green harvest) and grapes division respectively. grapes break,

Errechnungsformel

The yield is calculated using the following formula: average number of grapes per stick x average grape weight in kg x number of sticks per ha gives the yield in kg / ha. A more precise formula, taking into account specific values, comes from the website "Service Centers for Rural Rhineland-Palatinate": (first cut [eyes / st.] X shoot rate [%] x average number of grapes / shoots x average grape weight [g / grape] x Stockz./ha)...

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