Application of Subirrigation Using Capillary Wick System to Pot Production

다국어 초록 (Multilingual Abstract)

Cyclamen, Fungicide, Irrigation system, Overhead irrigationshment

다국어 초록 (Multilingual Abstract)

Alternative subirrigation way, capillary wick system (CWS) was tested to reduce labor cost, waste water, contamination of ground water, and use of fungicide compared to overhead irrigation system (OIS). CWS helped reduce remarkably the working hours for watering from 4 hours in OSI to just 5 minutes. Labor cost was saved 98% in CWS compared to OIS. By the physical characteristics of various growing media, 1 coconut coir＋2 perlite (v/v) mixture was selected because it had an ideal distribution of three phase, e.g. 1 solid: 1 liquid: 2 gas phase. Medium mixture containing scoria had so high bulk and particle density to hurt root. In bark-containing medium, the liquid phase and the percent saturation of liquid phase with time elapsed was lower than that of other mixture. It meant that the mixture contained very low level of water. Application of CWS for cyclamen pot production played an important role in reducing the incident of fusarium wilt symptom from 18% in conventional over watering system to 4%. Cyclamen pot irrigated by capillary wick had shorter petiole and more leaves than those by overhead watering. As a result, this system was highly beneficial to get uniform pot products with high quality. It improved water and nutrient solution efficiency relative to conventional overhead irrigation system (OIS)

참고문헌 (Reference)

• 1 Raviv, M., "Optimization of transpiration and potential growth rates of 'Kardinal' rose with respect to root-zone physical properties" 126 : 638-643, 2001
• 2 Mak, A. T. Y., "Nitrogen nutrition of Spathiphyllum 'Sensation' grown in sphagnum peat- and coir-based media with two irrigation methods" 36 : 645-649, 2001
• 3 Klute, A., "Methods of soil analysis. Part 1. Physical and mineralogical methods(second edition)" Soil Science Society of America, Inc. 364-367, 1982
• 4 Kweon, O. Y., "MK style bottom watering system for vegetable cultivation" 12 : 112-120, 1999
• 5 Klock-Moore, K. A., "Irrigation systems and fertilizer affect petunia growth" 11 : 416-418, 2001
• 6 Wallach, R., "Hydraulic characteristics of tuff (scoria) used as a container medium" 117 : 415-421, 1992
• 7 Dole, J. M., "Growth of poinsettias, nutrient leaching, and water-use efficiency response to irrigation methods" 29 : 858-864, 1994
• 8 Stamps, R. H., "Growth of Dieffenbachia maculata 'Camile' in growing media containing sphagnum peat or coconut coir dust" 32 : 844-847, 1997
• 9 Kelly, S. F., "Fertilizer diffusion in container medium" 122 : 122-128, 1997
• 10 Albahou, M. S., "Effect of salinity on blossom-end root of tomato in the closed insulated pallet system" 32 : 522-, 1997
• 11 Klock-Moore, K. A, "Effect of four growing substrates on growth of ornamental plants in two irrigation systems" 11 : 456-460, 2001
• 12 James, E., "Ebb and flow production of petunias and begonias as affected by fertilizers with different phosphorus content" 36 : 282-285, 2001
• 13 Klock-Moore, K. A., "Differences in bedding plant growth and nitrate loss with a controlled release fertilizer and two irrigation systems" 9 : 206-209, 1999
• 14 Baily, L. H., "Cyclamen. In: Hortus Third: A concise dictionary of plant cultivated in the United States and Canada" Macmillan Publishing 351-352, 1976