토양과 수위 및 차광의 차이가 창포(Acorus calamus var. angustatus)의 생육에 미치는 영향

Effects of Soil, Water Level and Shading on Growth of Acorus calamus var. angustatus

  • 신승훈 (대구가톨릭대학교 대학원 환경과학과) ;
  • 김민수 (대구가톨릭대학교 환경정보학부) ;
  • 김윤하 (대구가톨릭대학교 환경정보학부)
  • Shin Seung-Hoon (Dept. of Environmental Science, the Graduate School, Catholic Univ. of Daegu) ;
  • Kim Min-Soo (Faculty of Information and Environmental Science, Catholic Univ. of Daegu) ;
  • Kim Yoon-Ha (Faculty of Information and Environmental Science, Catholic Univ. of Daegu)
  • 발행 : 2004.10.01

초록

This study was carried out to analyze effects of soil, water level and shading on growth of sweet flag(Acorus calamus var. angustatus). Three types of soil were used, which included sandy, silty loam and paddy loam soil. Three levels of shading were applied in the experiment: no shading, 55% shading and 75% shading. The water levels were also adjusted to three levels in the experiment. The results are summarized as follows; 1. The cultivation of sweet flag in sandy soil with low water level resulted in decreased fresh weight compared to that at planting. This result indicates that the water level should be maintained higher than the soil surface for sweet flag growth in sandy soil. 2. 5 out of 72 sweet flags died in paddy loam soil. Water saturation of soil easily reduced paddy loam soil, and root growth of sweet flags in reduced soil condition were restricted, resulting in the dead plants. 3. The growth of sweet flag in paddy loam soil was worse than those in silty loam, indicating that reduced soil conditions in paddy loam is harmful to root growth. In planting sweet flags in paddy loam, improved soil aeration in paddy loam soil is necessary for good growth of sweet flag. 4. The maintaining of high water levels is better than that of low water levels in sweet flag cultivation. During winter, soil near the water surface froze and sweet flags in frozen soil were stressed physiologically. Maintaining high water levels prevents soil from being frozen which is good for the growth of sweet flags. 5. There was not significant difference in the growth of the sweet flag between non-shading and 55% shading. It thus appears that sweet flags can grow soundly under shading rate lower than 55%.

키워드

참고문헌

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