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Growth Responses of Various Ornamental Foliage Plants to Nutrient Solution Strength  

Shim, Myung-Syun (Korea National Arboretum Dep. of Horticulture and Education)
Kwon, Oh-Keun (Floriculture Research Division, National Institute of Horticultural & Herbal Science)
Publication Information
Journal of Bio-Environment Control / v.19, no.4, 2010 , pp. 210-216 More about this Journal
Abstract
This study was carried out to investigate the plant growth of various foliage plants affected by the nutrient solution strength. Ficus benjamina, Hedera helix, Philodendron tatei, Rhapis excelsa, Spathiphyllum spp. were used in this experiment. The Sonneveld solution was diluted to 0, 1/4, 1/2, and 1 folds and applied through a subirrigation system. Plant height and width, leaf number, leaf area, fresh and dry weights of shoots were measured to compare the responses to the different treatments. The required amounts for nutrients were different among the various foliage plants. The growth of Ficus and Philodendron was improved as the nutrient solution strength got higher, but that of Hedera and Spathiphyllum showed the best growth in the lower nutrient solution strength of 1/4 and 1/2 folds. The growth of Rhapis was improved in the nutrient solution strength of 1 fold but the other treatments did not affect on plant growth. N, P, and K were the most important nutrients that had influence on the growth of the foliage plants in this study. There was not an accurate criterion for fertilization and irrigation to each foliage plant. Moreover, the foliage plants grew slowly during the early stage and this period must be shortened for commercial production. Therefore, the experiment was executed to make up these defects. The plants applied with proper strength of Sonneveld solution grew faster and had better quality.
Keywords
Ficus benjamina; Hedera helix; Philodendron tatei; Rhapis excelsa; Spathiphyllum;
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