Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Growth of Containerized Chamaecyparis obtusa Seedlings as Affected by Fertilizer and Container Volume

시비수준 및 용기용적에 따른 편백 용기묘의 생장 특성

  • Jae, Dai-Young (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Seo, Huiyeong (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Cho, Hyun-Seo (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Ahn, Hyun-Chul (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Kim, Choonsig (Department of Forest Resources, Gyeongnam National University of Science and Technology)
  • 제대영 (경남과학기술대학교 산림자원학과) ;
  • 서희영 (경남과학기술대학교 산림자원학과) ;
  • 조현서 (경남과학기술대학교 산림자원학과) ;
  • 안현철 (경남과학기술대학교 산림자원학과) ;
  • 김춘식 (경남과학기술대학교 산림자원학과)
  • Received : 2014.07.25
  • Accepted : 2014.09.29
  • Published : 2015.03.31
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Abstract

This study was carried out to evaluate the growth characteristics, carbon and nitrogen content of containerized 1-0 Chamaecyparis obtusa seedlings at various levels of fertilizer (2 g/L, 1 g/L, control) and three container volumes (500 mL, 400 mL, 320 mL). The growth of root collar diameter was highest in the 2 g/L (3.14 mm), followed by the 1 g/L (2.75 mm) and control (2.41 mm) treatments, while the height of seedling was significantly higher in the 1 g/L (21.88 cm) than other treatments (2 g/L: 20.92 cm; control: 19.06 cm). The growth of root collar diameter by container volume was better in the 500 mL than in the 320 mL. Dry weight of seedling was the highest in the 1 g/L ($4.41g\;seedling^{-1}$), followed by the control ($3.67g\;seedling^{-1}$) and the 2 g/L ($2.92g\;seedling^{-1}$) treatments. The dry weight of seedlings by container volume was significantly higher in the 500 mL than in the 320 mL. Nitrogen concentration in foliage was ranged from 1.51% in the control to 2.45-2.60% in the fertilizer treatments. However, carbon concentration of seedlings was not affected by the fertilizer or the container volume treatments. The growth of seedlings following planting in mountain area was better in the fertilized seedlings compared with in the unfertilized seedlings. The results indicate that the 1 g/L fertilization was an optimum rate for growth following planting of Chamaecyparis obtusa seedlings.

본 연구는 편백나무 1-0 용기묘를 대상으로 시비수준(2 g/L, 1 g/L, 대조구)과 용기용적(500 mL, 400 mL, 320 mL)에 따른 생육특성, 묘목 내 탄소 및 질소함량, 320 mL 용기용적에서 생육한 편백 2-0 용기묘의 산지 식재 후 생장상태를 조사하였다. 편백나무 용기묘의 근원경 생장량은 2 g/L 시비처리구 3.14 mm, 1 g/L 시비처리구 2.75 mm, 대조구 2.41 mm순이었으며, 묘고의 경우 1 g/L 시비처리구는 21.88 cm로, 대조구 20.92 cm나 2 g/L 시비처리구 19.06 cm에 비해 유의적으로(P<0.05) 높게 나타났다. 용기용적의 경우 500 mL가 320 mL보다 유의적으로 높은 근원경과 묘고 생장을 보였다. 시비 수준에 따른 묘목 건중량은 1 g/L 처리구가 $4.41g\;seedling^{-1}$로 대조구 $3.67g\;seedling^{-1}$나 2 g/L 처리구 $2.92g\;seedling^{-1}$에 비해 유의적으로 높았다. 또한 500 mL이나 400 mL 용기용적이 320 mL 용기용적에 비해 유의적으로 묘목 건중량이 높았다. 잎 내 질소 함량은 시비처리구(2.45-2.60%)가 대조구(1.51%)에 비해 유의적으로 높았으나 묘목 각 부위 별 탄소함량의 경우 시비처리나 용기용적에 따른 차이가 나타나지 않았다. 편백나무 2-0 용기묘를 산지 식재한 후 근원경과 묘고 생장을 조사한 결과 시비처리 용기묘가 대조구에 비해 생장이 양호하였다. 편백나무 용기묘 생장 및 산지 식재 후 생육특성을 고려할 때 용기묘 양성을 위한 적정시비수준은 1 g/L로 나타났다.

Keywords

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