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약토 시용방법이 인삼 양직묘 지상부 생육에 미치는 영향
이성식(Sung-Sik Lee),천성기(Seong-Ki Cheon),이태수(Tae-Su Lee),윤종혁(Jong-Hyuk Yoon),박현석(Hyeon-Suk Park),신성련(Seong-Lyon Shin),최광태(Kwang-Tae Choi),이갑수(Gab-Soo Lee),주성돈(Seong-Don Ju),정재동(Jae-Dong Chung) 고려인삼학회 2004 Journal of Ginseng Research Vol.28 No.4
This experiment was conducted to determine the economic application method of Yakto among 6 application method: amount of Yak to application 3 plot(70ℓ, 25.5ℓ,13.3ℓ/kan;180cmx90cm), and added side dressing(3ℓ/kan) each plot. The reduced amoumt ofYakto application(25.5ℓ, 13.3ℓ/kan) were lower the contents of inorganic nitrogen, P₂O_5, K, Ca and Mg, but similar pH in bed soil compared with standard Yakto application(70ℓ/kan). Side dressing applicated on 29 May increased the contents of inorganic nitrogen, P₂O_5, K, Ca, Mg and salt concentration in bed soil compared with nonside dressing in each Yakto application plot(70ℓ, 25.5ℓ, 13.3ℓ/kan). The reduced amoumt ofYakto application(25.5ℓ/kan) added side dressing(3ℓ/kan) were similar the contents of inorganic nitrogen, K, Mg and salt but lower PPs and Ca in bed soil compared with standard Yakto application(70ℓ/kan) in June. The reduced amoumt of Yak to application(25.5ℓ/kan) added side dressing(3ℓ/kan) was similar the contents of P, K, Ca and Mg but lower N in leaves compared with standard Yakto application(70ℓ/kan). The reduced amoumt of Yakto application(25.5ℓ/kan) added side dressing(3ℓ/kan) was shorter stem length, and higher 5% chlorosis of leaf tip, but similar emergence ratio, survival ratio, leaf senescence ratio, chlorophyll, stem diameter and leaf area compared with standard Yakto application(70ℓ/kan). These suggested that 25.5ℓ Yakto application added side dressing(3ℓ/kan) per kan might be possible economical application method of Yakto.