… with irrigation technology and the actually irrigated terrain have increased since 2009. In 2019, 506,480 ha of outdoor cultivation areas were irrigated. Frost … in Germany. In 2019 this value had already risen to 506,480 ha. Compared to 2009 values, this is an increase by 36 %. These figures do not include any areas … with irrigation technology and the actually irrigated terrain have increased since 2009. In 2019, 506,480 ha of outdoor cultivation areas were irrigated. Frost …