Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Capillary Wick Width and Water Level in Channel Affects Water Absorption Properties of Growing Media and Growth of Chrysanthemum and Poinsettia Cultured in C-channel Subirrigation System

C-형강을 이용한 저면관수 시 배지의 수분 흡수 및 국화와 포인세티아의 생장에 미치는 심지의 폭과 수위의 영향

Kang, Seung-Won;Seo, Sang-Gyu;Pak, Chun-Ho
강승원;서상규;박천호

  • Published : 2009.03.31
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Abstract

This experiment was conducted to investigate water absorption properties of growing media and growth and development of chrysanthemum (Dendranthema grandiflorum 'Lompoc') and poinsettia (Euphorbia pulcherrima 'Cortez') as affected by water levels in channel and the width of capillary wicks in C-channel wick irrigation system. In the study of water absorption properties, the water content was increased as the wick width and water level increased. Irrespective of capillary wick width and water level in channel, the capillary subirrigation system showing rapid water absorption was observed within 24-hours, followed by gradual increase thereafter. Treatment with medium water level (3.0 cm) and a wick width of 1.5 cm was the best for the chrysanthemum whereas the treatment with full water level (4.3 cm) and a wick width of 1.5 cm was the best for the poinsettia. In this experiment using C-channel wick irrigation system, supplying nutrient solution in medium level produced optimum growth for chrysanthemum, whereas full level supplement was needed for poinsettia. C-channel subirrigation system with suitable height control regime is expected to be suitable for small pot plants with high quality. This system could improve the efficiency of water and fertilizer use and reduce the cost. It also would be effective for management.

C-형강 심지관수 시스템을 이용한 분화재배 시 모세관 심지의 폭과 형강 내 수분의 높이가 국화(Dendranthema grandiflorum 'Lompoc')와 포인세티아(Euphorbia pulcherrima 'Cortez')의 생장 및 생육과 배지의 수분 흡수특성에 미치는 영향을 구명하기 위해 본 실험을 수행하였다. 수분 흡수 특성의 연구결과, 심지의 폭이 넓을수록, 형강 내의 수분함량이 높을수록 배지의 수분함량이 증가하였다. 배지의 수분함량 증가는 심지의 폭과 형강 내 수분 높이와 상관없이 수분 공급 후 24시간 이내에 수분흡수량이 급격히 증가하였고, 그 이후부터는 완만한 수분 흡수특성을 나타내었다. 국화 및 포인세티아 재배실험의 경우, 중간의 수분높이(3.0cm)와 1.5cm의 심지폭 처리구가 국화 재배 시 최적의 조합으로 나타났으며, 포인세티아는 고 수분높이(4.3cm)와 1.5cm의 심지폭 조합에서 생육이 좋은 것으로 나타났다. C-형강 심지관수 시스템을 이용한 본 실험을 통하여, 분화용 국화는 중간 높이의 양수분 높이에서, 포인세티아는 고 수분 높이의 양수분 공급이 필요한 것으로 나타났으면, 따라서 형강 내 양수분 높이의 조절을 통하여 고품질의 소현 분화생산이 가능하리라 판단된다. 이 시스템을 통하여 수분 및 양분이용의 효율성을 높일 수 있고, 생산비용을 절감할 수 있을 것이라 생각하며, 이로 인하여 생산 경영의 효율성을 높여줄 것이라 생각한다.

Keywords

References

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