天美传媒

Abstract

In recent decades, the cultivation of grapevines for wine production has been undertaken in the Baltic States and Scandinavia. Its success depends among other factors on the climate, the length of the growing season, the soil and soil temperature. This study measured vineyard soil temperatures in three localities in southern Finland (Tuusula) and Estonia (R盲pina and P盲rnu) from December to November. During the coldest months of January, February and March, soil temperatures at depths of 25 cm and 45 cm were 0潞C or slightly higher, so the roots of the vines did not freeze. In April, in the southern Finnish locality (Tuusula), the average temperature of the soil was 3.4 to 3.5潞C lower than in the Estonian locations. This difference grew smaller during the growing season but remained statistically significant (p<0.05-0.001) until August-September. From this it can be concluded that the risk of frostbite in vine roots that have been planted to a depth of 25 cm is low and existing soil temperatures do not restrict viticulture with suitable varieties on the Baltic coast.

Biography

Juha Karvonen has completed his MSc (Horticulture) studies from Faculty of Agriculture and Forestry, University of Helsinki in 2009 and started Doctoral studies in Department of Agricultural Sciences, Faculty of Agriculture and Forestry, University of Helsinki in 2013. He has published the first book on Nordic Viticulture in 2004.