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Selection of Vegetables and Fertigation Methods for Veranda Gardening  

Moon, Ji-Hye (National Horticultural Research Institute, RDA)
Lee, Sang-Gyu (National Horticultural Research Institute, RDA)
Jang, Yoon-Ah (National Horticultural Research Institute, RDA)
Lee, Woo-Moon (Rural Development Administration)
Lee, Ji-Weon (Rural Development Administration)
Kim, Seung-Yu (National Horticultural Research Institute, RDA)
Park, Hyun-Jun (Agroactive, Co., Business Incubator of Agriculture & Life Science)
Publication Information
Journal of Bio-Environment Control / v.16, no.4, 2007 , pp. 314-321 More about this Journal
Abstract
This study was conducted to select leaf vegetables suitable for cultivation in apartment verandas and simple and easy fertigation method for home gardening. In order to develop the convenient fertigation method, hydroponics, wick irrigation, and overhead irrigation methods were compared. For the wick irrigation, two types of nutrient sources were used; one was slow release fertilizers mixed with medium and the other one was nutrient solution filled in container located under pots. The growth of leafy lettuce, leaf mustard, and leaf beet was better in both of the wick irrigation methods rather than in overhead irrigation and hydroponics. The wick irrigation method is very easy, so that it is expected to bring a good result from the cultivating and managing point of view, if it brings with commercialized system along with slow release fertilizer. As a result of investigation of environment such as temperature, relative humidity, and irradiance level in apartment verandas in autumn the highest irradiance level during a day was just 48% and 35% in verandas facing south and feeing southeast, respectively, comparing to that in greenhouse. The light environment was investigated as a limiting factor for vegetable growing in verandas. Therefore, to select the vegetables showing good growth under low irradiance environment, nine leaf vegetables such as romaine lettuce, lent lettuce, head lettuce, endive, pak-choi, leaf mustard, garland chrysanthemum, leaf beet, and Chinese chive were grown under 0%, 50%, 70%, 90% shading. Among them, Chinese chive showed the best growth under low irradiance levels. Endive showed line growth reduction according to shading degree, however, even under 90% shading condition, it showed good growth. And then leafy lettuce, garland chrysanthemum, and pak-choi followed. Therefore, these results will be of help in selecting vegetables for veranda gardening with different light levels.
Keywords
fertigation system; irradiance levels; leaf vegetables; veranda environment;
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