Substance occurring in nature mainly as rock salt (NaCl = sodium chloride) in the soil and as common salt in marine waters (2.7%). Vines are relatively susceptible to salt damage compared to other crops. In the soil, especially in the root zone, salt has a negative effect on growth in higher concentrations by impairing the water balance. This can cause chlorosis and necrosis. This can be combated by adding calcium (gypsum) or, for the purpose of salt leaching, with heavy irrigation. Irrigation with excessively saline water leads to burns on the leaves, which can also be caused by sea-saline winds near the coast. Saline soils occur mainly in areas with hot, dry climates and artificial irrigation. Some areas in Australia, among others, are affected. Some grape varieties, however, are relatively resistant, such as Colombard.
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Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden