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차나무 간이 삽목상 적정 상토 및 삽목 시기에 관한 연구
이용호(Yong-Ho Lee),Seong-Tae Lee, 손길말(Gil-Man Shon),송근우(Geun-Woo Song),고영옥(Yong-Ok Ko),정용모(Yong-Mo Chung) 한국차학회 2004 한국차학회지 Vol.10 No.2
This study was carried out to investigate the suitable timing of cutting and good quality of bed soil for the tea plant. for the bed soil, decomposition of granite soil, perlite, and vermiculite were mixed with upland soil. The mixed bed soil was treated either within box(48×37×8cm) or rock wool culture medium pot and the cut tea plant was grown in the vinyl green house without heat treatment. The results are summarized as follows; 1. The highest rates of healing tissue formation and rooting were observed from the mixed bed soil with perlite and vermiculite(26.3% and 14.9% for 1st year and 78.3% and 54.3% fro the 2nd year, respectively). In addition, yields were increased up to 26.3% and 14.9%, respectively, compare to those of decomposition of granite soil. 2. The single bed soil with perlite showed the highest rates of healing tissue formation and rooting(70.0% and 61.3%, respectively) but the single bed soil with vermiculite having lower water potential showed the lowest rates(57.8% and 39.8%, respectively) 3. After 1 year of cutting tea plant at 20th of June, the highest rates of healing tissue formation and rooting were observed(78.3% and 55.3%, respectively) but the lowest rates were observed at 20th of April. 4. A similar trends were also obtained after 2nd year of cutting(75.0% and 53.5%, respectively). The lower rates were observed when the cutting time was either earlier or later then these dates. 5. In terms of production cost of nursery tea plant(2,200/10a), the highest amount was observed from the mixed bed soil with decomposition of granite soil and vermiculite(1,075 won) but the lowest amount(940 won) was from the mixed bed soil with perlite and vermiculite. In conclusion, for the small scale of cut tea plant, either mixed bed soil with perlite and vermiculite(1:1) of single bed soil of perlite would be the best when they are transferred to cutting bed at around 20th of June. And our results recommend that it would be suitable to transfer into the cutting bed soil around 20th of August avoiding the high temperature and moisture in July if you have no choice.
이용호(Yong-Ho Lee) · 최재혁(Jae-Hyeok Choi) · 오주성(Ju-Sung Oh) · 손길만(Gil-Man Shon) 한국차학회 2006 한국차학회지 Vol.12 No.2
This study was conducted to find out conditions of green tea processing and the ways to improve managerial condition. In order to carry out this study we looked into 51 farms producing processed green tea(32 farms in 4 myeons, south Gyeongsang province, 2002, and 19 farms in 2 myeons, 2003). The results of survey are summarized as follows: In green tea processing years, the number of farms with less than 10 years was 27 farms (52.9%), and one farm had more than 30 years. Average yield per farm of processed green tea products was 798 kg/year. The invest cost on facilities and equipment ranged from 4,120 thousand won to 38,400 thousand won. Average point in diagnostic evaluation was 59.7 (48.5 to 75.0). It also showed that 26.4% of the farms were unsuitable for green tea planting. Also it indicated that high investment cost in facilities was one of the problems in green tea processing. Therefore small-size processing facilities or cooperative automated processing facilities were suggested. The main problems in marketing were lack of advertising and dealers, and the sudden drop in price. To improve green tea sales, e-com-merce, opening new markets and advertising were suggested. The income rate of farm with the green tea tree-growing area of 0.7ha was 60.3% which was highest rate.