The sum of all the various activities during the annual vegetation cycle in the vineyard with appropriate tools, measures and systems to obtain physiologically ripe and healthy grapes as the basis for high-quality wines. A catchphrase often used on winegrowers' websites is "The quality of the wine is already decided in the vineyard" , sometimes with the addition "The measures in the cellar are limited to controlled (non-invasive) inactivity". It is not quite as simple as that, but there is no doubt that it is difficult or even impossible to make up for omissions and mistakes in vineyard management in the cellar.
There is a vast number of sources on the web where one can acquire knowledge about wine. But none has the scope, timeliness and accuracy of the information in the encyclopaedia at wein.plus. I use it regularly and rely on it.
Sigi Hiss
freier Autor und Weinberater (Fine, Vinum u.a.), Bad Krozingen