Eisbergsalatsamen Ljubljana

Iceberg lettuce seeds are grown mainly through seedlings. The seeds germinate in 7-10 days at a temperature above 12°C.For early spring production are sown in late January and early February in cultivation facilities. For autumn production seedlings are planted in mid-September.

Lettuce responds very well to both fertilizing with mineral fertilizers and fertilizing with manure. However, it should be emphasized that the production of lettuce in greenhouses is adversely affected by the high content of mineral nitrogen, which is accumulated in the soil due to the intensive fertilization of the main crop. Nitrogen accelerates growth processes, but reduces the cold resistance of lettuce and lettuce, and in excess degrades the quality of production. The water regime is kept moderate.