ISHS Acta Horticulturae 633: XXVI International Horticultural Congress: Protected Cultivation 2002: In Search of Structures, Systems and Plant Materials for Sustainable Greenhouse Production
EFFECTS OF NITROGEN, POTASSIUM, CALCIUM CONCENTRATIONS AND SOLUTION TEMPERATURES ON THE GROWTH AND YIELD OF STRAWBERRY CV. REDGAUNTLET IN A NUTRIENT FILM (NFT) HYDROPONIC SYSTEM |
| Authors: | K.K. Chow, T.V. Price, B.C. Hanger |
| Keywords: | hydroponics, NFT, nutrition, strawberry |
| Abstract:
The effects of different concentrations of nitrate-nitrogen, potassium, calcium and nutrient solution temperatures on the growth and yield of strawberry cv. Redgauntlet in a nutrient film hydroponic system (NFT) were assessed over a 106 day period. Plants grown in nutrient solutions containing high (14.9 N: 8.5 K: 4.2 Ca mM) and low (7.1 N: 4.6 K: 2.3 Ca mM) concentrations of these elements showed similar growth and yield. Nutrient uptake was not affected by either solution or the 5°C difference in solution temperature. Berry production was dependant on plant size and truss number. Calcium deficiency in young leaves was associated with high solution temperatures and not the level of Ca in the nutrient solution. | |
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