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RISS 인기검색어
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- 저자 : ( Seouggil Hong ) (검색결과 1 건)
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( Jeongwook Heo ),( Kyounghoon Park ),( Chanheum Park ),( Jaesu Lee ),( Jeonghyun Baek ),( Seouggil Hong ),( Gongin Lee ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
In hydroponic culture, several nutrient solutions were used for plant growth and development under smart greenhouse (Plant factory system) conditions with artificial lights instead of sun light. The conventional solutions are automatically irrigated for leafy plants production under controlled EC and pH conditions. Researches on the nutrient solution control were focused on the cool-season leafy plants such as lettuce spp. growing for 4~5 weeks after seedling transplantation on hydroponic culture bed. However, investigations on the effects of nutrient solutions for long term culture crops compared to the leafy plants have not been conducted. It was conducted to investigate the effect of conventional culture mediums on long-term growth of Ledebouriella seseloides seedlings under smart greenhouse conditions. Conventional Japan Wonsi standard (JW), Yamazaki Leaf lettuce (YL), and Yamazaki Padeudeuk (YP) solutions were used for hydroponic culture. The seedlings with a longer growth period than leafy plants were considered as a plant material. The seedlings which developed 2~3 true leaves were grown in the smart greenhouse with Light-Emitting Diodes (LEDs) lights of blue, red and white of 1:2:1 mixture in energy ratio. The three nutrient solutions were regularly irrigated by the deep flow technique (DFT) system on the culture gutters for 350 days. Long term culture of Ledebouriella seseloides seedlings with a longer growth period was established by the nutrient solutions which conventionally used for hydroponic culture of leafy plants inside the smart greenhouse conditions. There was no significance in the leaf growth of the seedlings such as fresh weight, leaf extension and leaf pigmentation among the mediums. From the results, it is suggested that the type of culture mediums was not crucial factor in long-term growth of the seedlings under controlled environments such as smart greenhouse conditions although average leaf number of the seedlings grown under MJ or YP treatment significantly increased.
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