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Influence on Platycodon grandiflorum Absorption of Nitrogen and Phosphorous Acid and Growth during Seedling Stage by Liquid Fertilizers Treatment
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 Title & Authors
Influence on Platycodon grandiflorum Absorption of Nitrogen and Phosphorous Acid and Growth during Seedling Stage by Liquid Fertilizers Treatment
Lee, Cheol-Ho; Lee, Shin-Woo; Ahn, Mi-Jeong; Cho, Kwang-Bok; Lee, Hyub;
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 Abstract
The roots of Platycodon grandiflorum has been widely used as a crude drug or a food stuff. Unfortunately, the output and the quality is not regular and highly dependent on the cultivation area and cultivation method. Therefore, seedling cultivation study of this plant under structure with various fertilizer supply was performed. As a result, significant big difference between ammonia nitrogen and nitrate nitrogen content was shown in the root at seedling stage while the difference was not significant in the aerial parts. Fresh weight of the root (7.73 g plant) was higher in the group treated with three major nutrients (N, P and K) than in those treated with three major nutrients and calcium or magnesium or both calcium and magnesium, and non-treated group (2.69 g plant). Total nitrogen content was recognized to be significantly correlated with root weight, plant height, number of leaves and weight of aerial parts. Ammonium nitrogen content was more correlated the growth of P. grandiflorum than nitrate nitrogen. For phosphoric acid, significant correlation was also shown with the four growth factors.
 Keywords
Platycodon grandiflorum;Seedling Cultivation;Nitrogen;Phophoric Acid;Growth Characteristics;
 Language
Korean
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