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Effects of Various Composts and NPK Fertilizers Application to the Yacon (Polymnia sonchifolia POEPP) Growth  

Hur, Bong-Koo (Bonghwa Alpine Medicinal Plant Experiment Station)
Choung, Nack-Hyun (Dept. of Herbal Medicines Management, Catholic Sangji College)
Kim, Zhoo-Hyeon (College of Agri. & Life Sci., Gyeongsang Natl. University)
Oh, O-Jin (Dept. of Herbal Medicines Management, Catholic Sangji College)
Son, Seong-Gon (Miryang girl's High School)
Kang, Dae-Yong (Adulram Farm)
Publication Information
Korean Journal of Medicinal Crop Science / v.15, no.1, 2007 , pp. 17-20 More about this Journal
Abstract
This study was conducted to investigate the effect of various composts and NPK fertilization rates on the growth of yacon (Polymnia sonchifolia POEPP). Fertilization of used soil was low. Mean temperature of July was higher than that of normal year, but those of another months were same or the lower. The yield of the no-compost plot was higher by 74% than the no-fertilization plot. Increased NPK fertilization rates of bark compost and organic fertilizer plots increased the growth and yield of yacon. The yield of bark compost 1.5 times plot was highest by 6,905 ㎏/10a. The chemical contents of leaves in the various compost and NPK fertilization rates were not normal tendency, and also that of no-compost plot was not difference to the NPK fertilization rates plot.
Keywords
Yacon; Growth; Compost; NPK fertilizer; Application rate;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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