Studies on the Application of Byproduct Composts as Substitute for Yacto in Yang-jik Nursery of Ginseng
2009
Kang, S.W., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Yeon, B.Y., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Lee, S.W., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Hyun, D.Y., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Bae, Y.S., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Hyeon, G.S., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea
This study was carried out to select economical byproduct composts as the substitute for the traditional organic fertilizer, Yacto, in the cultivation of ginseng seedlings, and to investigate the application method of a selected compost. Among tested byproduct composts, popped rice hull compost was the best substitute for Yacto, while the application of domestic animal manure composts resulted in red skinned roots of ginseng seedlings. Optimal mixing ratio of the popped rice hull compost with virgin soil (fine sand) were 3~4 : 1 in bulk, showing the same root yield compared to that of conventional seedbed soil. When the popped rice hull compost was lower than 1±0.1% in nitrogen content, the expeller cake of oil seed was added to seedbed soil to rise nitrogen content until 1±0.1%.
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