Abstract
Stevia rebaudiana Bertoni was hydroponically raised on the matrices of sand or slag and sprinkled periodically with three different nutrient solutions (BD, KO, Knop) respectively. The conventional raising method of Hailin state farm was used as the control. The results showed that the seedlings grown on the matrix of sand and sprinkled with Knop nutrient solution were stronger with well-developed root systems, obvious spindle-shaped root tubers, and less plant diseases, no insect pests, and weeds, which was significantly better than the control method in respect to the root length, root fresh weight, stem height, shoot fresh weight, and number of leaves, and significantly better than other treatments in respect to the root length, root fresh weight and stem height. This raising method is worth extending.
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