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노희선 ( H. S. Noh ),김종환 ( J. H. Kim ),최성진 ( S. J. Choi ),김용복 ( Y. B. Kim ),김세원 ( S. W. Kim ),김인종 ( I. J. Kim ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2014 강원 농업생명환경연구 Vol.26 No.3
재식거리별 생육은 30×25 cm에서 식재구에서 1차 수확시 엽장 27.8 cm, 엽폭 8.6 cm, 경경 14.8 mm, 엽록소함량 47.4 SPAD, 주당 수량 236.1 g/주로 가장 좋았으며, 3차에 걸친 총 주당 수량도 410.7 g/주로 가장 좋았으나 10 a당 수량은 3,833 kg/10 a로 다소 낮았다. 반면에, 10×10 cm 재식구에서는 엽장 26.7 cm, 엽폭 6.6 cm, 경경 9.3 mm, 엽록소함량 34.7 SPAD, 주당 수량 66.6 g/주로 30×25 cm 재식구에 비해 1/4 밖에 되지 않았지만, 10 a당총 수량은 7,910 kg/10 a로 30×25 cm 재식구의 2배가 수확되었다. 10×10 cm 재식구에서 주당 생육은 30×25 cm 재식구에 비해 다소 저조 하였으나, 줄기를 같이 활용할 수 있는 장아찌나 김치 등 가공으로 이용하기에는 품질이 좋아 단위면적당 수량을 높일 수 있었다. 수확횟수별 수량은 1차 수확시 4,662 kg/10 a, 2차 수확시 2,520 kg/10 a, 3차 수확시 728 kg/10 a로 수확횟수가 늘어나면서 수량이 줄어들고 3차 수확시 개화기와 겹쳐 수량이 급격히 줄어들었다. 또한, 생육후기에는 밀식재배의 경우 흰 가루병 발생율이 높아지는 경향을 보였다. Lactuca indica L., annual and biennial plant in Compositae, grows wildly in Korea. It is used variously of vegetable for wrapped rice or meat, cooked greens, kimchi and pickle. In Korean medicine, it effects strengthening of stomach, sedation, urination, sweating and so on. It has a bright future as health food. Therefore, we researched the growth and yield according to the different planting distances of Lactuca indica L. ``Seonhyang``. Seeds were sown in 105 cells tray-pot on 4th March 2013 in greenhouse and raised for 45 days. Seedlings were planted 10×10-30×40 cm (9 degrees) distances on 2nd May in the field contained compost 2 ton and N:P:K=14:10:9 kg/10 a. We harvested stems with leaves in about 1 cm diameter, 25 cm length. The first harvest was 20th June, the second was 20th July and the third was 19th August. The growth and yield per plant were best in first harvest of 30×25 cm planting distance (leaf length 27.8 cm, leaf width 8.6 cm, stem width 14.8 mm, chlorophyll SPAD 47.4, yield 236.1 g/plant) and total yield was 3,833 kg/10 a. In 10×10 cm, leaf length 26.7 cm, leaf width 6.6 cm, stem width 9.3 mm, chlorophyll SPAD 34.7 and yield 66.6 g/plant were low. But the total yield was 7,910 kg/10 a and it was twice compared with 30×25 cm. It was good for making pickle and kimchi because stem slimmed in 10×10 cm. The yields decreased according to harvesting time (4,662 kg/10 a in 1st, 2,520 kg/10 a in 2nd and, 728 kg/10 a in 3rd).
이지용(J.Y.Lee),김종환(J.W.Kim),허웅(W.Huh),서동선(D.S.Suh) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_2
In this paper, we study about correction method of vehicle unbalance for the road surface measurement.<br/> The vehicle unbalance are calculated by the displacement values that from a left and a right accelerometers. The diplacement values are derived from accelerate value by double integration.<br/> As a results of experiment. we obtain a good integration value and correction method.
신품종 감자 “미백”의 씨감자 소괴경 생산을 위한 분무경과 배지경의 비교
전신재 ( S J Jeon ),맹진희 ( J H Maeng ),이안수 ( A S Lee ),최성진 ( S J Choi ),김종환 ( J W Kim ),김인종 ( I J Kim ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2015 강원 농업생명환경연구 Vol.27 No.3
Two different cultivation systems, aeroponics and hydroponics, were compared for the production of new potato cultivar ‘Mibaeg’ minitubers. Plants in the aeroponics showed increased vegetative growth in height, fresh weight, root length, and number of stolen. Also, the number and weight of minituber were increased in aeroponics. In aeroponics, the number of tuber was 9.1 per plant and the weight was 180.2 g. On the other hand, there was no difference in average tuber weight. The ratio of tuber height and width was higher in aeroponics. Tubers grown in aeroponics showed an increased number of opended lenticels, due to hight humidity conditions in the system. The characteristics of breaking dormancy and sprouts were no difference in cultivate system, but size of tuber was effected.
신품종 감자 오륜과 미백의 소괴경 생산을 위한 분무경시 적정 재식밀도
전신재 ( S. J Jeon ),맹진희 ( J. H. Maeng ),이안수 ( A. S. Lee ),최성진 ( S. J. Choi ),김종환 ( J. W. Kim ),김인종 ( I. J. Kim ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2016 강원 농업생명환경연구 Vol.28 No.1
지상부 생육의 경장은 오륜 품종에서 재식밀도가 높아짐에 따라 64.8 cm에서 103.8 cm로 길어졌으나, 미백 품종은 경장, 경경, 마디수에서 재식밀도 간 차이가 없었다. 주당 생체중은 오륜 품종은 16주/㎡, 미백품종은 32주/㎡까지 차이가 없었다. 엽면적지수는 오륜 품종에서는 재식밀도별로 각각 4.4, 9.3, 12.0, 23.4로 직선적으로 높아졌고, 미백품종은 1.3, 2.4, 4.4, 5.3으로 약간 높아졌다. 주당괴경 수량성은 밀식에 의하여 괴경수와 총 괴경중이 감소하였다. 그러나 단위면적당 수량은 오륜품종은 처리별로 각각 2.14, 5.17, 6.65, 7.82 kg/㎡이었고, 미백품종은 1.38, 2.33, 4.60, 4.83 kg/㎡이었다. 소괴경 개수는 오륜 품종에서는 각각 54, 120, 180, 210개/㎡ 이었고, 미백 품종은 89, 150, 294, 357개/㎡ 이었다. 평균 서중은 미백 품종 15.1 g, 오륜 품종 39.2 g 으로 품종 간 차이는 있었으나, 처리에 따른 차이는 크지 않았다. 소괴경 생산을 위한 조직배양묘 분무경시 최대수량을 보이는 재식밀도는 두 품종 모두 64주/㎡이었으나, 조직배양묘의 소요량, 지상부 과번무에 따른 병해 발생 우려 등을 고려했을 때 32주/㎡가 적정할 것으로 판단되었다. This study was conducted to optimize planting density for potato micro-tuber production in spring season. Potato in vitro plantlets, cv Oryun and Mibaeg, were grown aeroponically at four different plant densities (8, 16, 32 and 64 plants/m2). Plant height was increased in Oryun varieties from 64.8 cm to 103.8 cm with increased planting density, but in Mibaeg did not differ at height, stem diameter and the number of nodes. Fresh weight was no difference up to 16 plants/㎡ in Oryun and 32 plants/㎡ in Mibaeg. Leaf area index was linearly increased in Oryun 4.4, 9.3, 12.0 and 23.4, respectively. But Mibaeg was slightly increased from 1.3 to 5.3. The number of tubers and weight per plant was decreased by high planting density in both varieties. However, the yield per square meter were 2.14, 5.17, 6.65 and 7.82 kg in Oryun, 1.38, 2.33, 4.60 and 4.83 kg in Mibaeg. We also observed that the number of micro-tubers, in Oryun 54, 120, 180 and 210 and in Mibaeg 89, 150, 294 and 357. The average tuber weight was 39.2 g in Oryun and 15.1 g in Mibaeg, but there is no difference among the planting density. Even though the maximum yields were 64 plants/㎡ in both varities, we concluded that 32 plants/㎡ were optimum planting densities, considering the requirments of plantlets and disease caused by excessive planting.