생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제18권4호
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  • Pages.316-325
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  • 2009
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
권호 표지

매트재배에서 Ardisia 소형분화 생산에 적합한 배지의 물리성

Optimum Physical Property of Media for the Production of Small Potted Ardisia in Capillary Mat Irrigation System

  • 이동수 (농촌진흥청 국립원예특작과학원 화훼과) ;
  • 권오근 (농촌진흥청 국립원예특작과학원 화훼과) ;
  • 이영란 (농촌진흥청 국립원예특작과학원 화훼과) ;
  • 이용범 (서울시립대학교 환경원예학과)
  • Lee, Dong-Soo (Floriculture Research Division, National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kwon, Oh-Keun (Floriculture Research Division, National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Lee, Young-Ran (Floriculture Research Division, National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Lee, Yong-Beom (Department of Environmental Horticulture, University of Seoul)
  • 발행 : 2009.12.31
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초록

배지의 적정 수분함량과 기상율은 분화식물 생산에 있어 중요한 환경 요인들이다. 매트관수시스템에서 Ardisia 소형분화 생산에 적합한 배지의 물리성을 구명 하고자 실험을 수행하였다. 실험에 사용된 공시 작물은 산호수와 자금우였다. 피트모스 배지에 왕겨와 펄라이트를 각각 부피비로 20, 40, 60%로 혼합하였다. 배지의 총공극은 왕겨의 혼합비율이 증가함에 따라 증가하였으나, 펄라이트는 혼합비율이 증가함에 따라 감소하였으며, 왕겨와 펄라이트의 혼합비율이 증가함에 따라 기상율은 증가하였으나, 배지의 수분함량은 감소하였다. 배지의 기상율은 왕겨 혼합배지에서 펄라이트 혼합배지보다 높았으며 증가율은 왕겨혼합배지에서 더 높았다. 배지의 $CO_2$ 농도는 기상율이 증가함에 따라 감소 하였는데, 왕겨 혼합배지에서 펄라이트 혼합배지보다 $CO_2$ 농도가 더 높았다. 산호수와 자금우의 생체중과 건물중은 왕겨를 60% 혼합한 배지에서 가장 높았으나, 지상부와 지하부의 건물 비율은 가장 낮았다. 매트관수 시스템에서 Ardisia속 식물인 산호수와 자금우의 소형 분화 생산에 적합한 배지의 물리성은 총공극과 기상율, 포트용수량이 각각 82.8, 25.6, 57.2%이었다.

Adequate conditions of water content and aeration of container media are major environmental factors in the production of pot plant. This experiment was carried out to find optimum physical property of media for the production of small potted Ardisia in capillary mat irrigation system. The plant materials used in this experiment were Ardisia pusilla and Ardisia japonica. Seven substrates were formulated by blending perlite or fresh rice hulls at 20%, 40%, 60% (v/v) with sphagnum peat. Total pore space (TPS) increased by blending sphagnum peat with fresh rice hulls, but decreased by blending sphagnum peat with perlite. As fresh rice hull (FRH) and perlite content increased, air filled pore space (AFP) of substrate increased but container capacity (CC) decreased. Substrate blended with fresh rice hull was higher AFP than blended with perlite and the rate of increase was higher for FRH-containing substrate. As AFP increased, the $CO_2$ concentration in the pot decreased and the $CO_2$ concentration of substrate blended with FRH was higher than blended with perlite. The fresh and dry weight of Ardisia pusilla and A. japonica was the highest in the substrate contained 60% FRH, but the ratio of shoot dry weight to root dry weight was the lowest. The optimum total pore space, air-filled pore space, water holding capacity of substrate for the growth of Ardisia pusilla and A. japonica in the capillary mat irrigation system were 82.8%, 25.6%, and 57.2% respectively.

키워드

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