PROSPECTIVE BLUEBERRY (VACCINIUM ASHEI READE AND V. CORYMBOSUM L.) GROWING AREAS IN SOUTH-CENTRAL CHILE
Land devoted to blueberry culture in Chile is expected to increase from 45 ha in 1989 to 4 500 in 1999, creating the need to define areas that would be best suited for these crops. Soil data at scale 1:20 000 (pH, texture, slope and depth) and 10-year climatological data (date of last frost (DLF), frost-free period (FFP) and vernalization hours) from 10 meteorological stations throughout the VIIth Region in South-Central Chile (lat. 34° 50' to 36° 14'), were collected and normalized to classify prospective sites into suitable without limitations (S), suitable with limitations (LS) and not-suitable (NS), according to criteria compiled from the literature. Suitable sites were rectricted to a sector of volcanic soils between the Andes mountains and the Central Valley. The Andes and coastal ranges of mountains and hills, greatly reduced the areas with prospective sites for blueberries. Soil-related limitations were common; cost/benefit studies would be required to decide the use of management practices needed to overcome these restrictions. Vernalization hours were not limiting; while frost-related climatological conditions in the strip of suitable volcanic soils along the Andes mountains further reduced the choice of sites and plant material.
Retamales, J., Matus, F. and González, P. (1993). PROSPECTIVE BLUEBERRY (VACCINIUM ASHEI READE AND V. CORYMBOSUM L.) GROWING AREAS IN SOUTH-CENTRAL CHILE. Acta Hortic. 345, 141-148