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암면배지내 인공 zeolite 형 각종 이온교환제 처리가 온실멜론의 이온교환능에 미치는 영향
장홍기,정순주 (사)한국생물환경조절학회 1996 생물환경조절학회지 Vol.5 No.1
본 실험은 인공 zeolite 및 각종 이온교환제를 암면슬라브내에 첨가하므로서 완형능력을 부여하여 온실멜론의 암면재배에 대한 이온 교환능 및 흡착능의 작용기작을 비교검사하고자 수행하였다. 1. 이온교환제의 처리에 따른 멜론의 생육특성중 초장은 대조구인 원시 1/2단위에서 124cm인데 대해 Ca형 인공zeolite에서는 131,2cm로 켰으며 경 및 엽의 생체중에서도 같은 경향이 보였다. 2. 과실중은 인공 zeolite를 첨가한 경우에 무거워지는 경향을 나타냈으며, 당도 및 외관은 처리에 따른 차이가 거의 보이지 않았다. 3. Zeolite의 첨가에 의해 배양액의 pH나 이온교환능을 안정시키는 것이 가능하고, 양분흡수를 순조롭게 하며, 양분흡수의 증가를 촉진하고 생육촉진도 기대할 수 있었다. 이상의 결과는 인공 zeolite를 암면배지내에 첨가하므로서 이온 보유능, 흡착능을 갖게하여 배지내의 생육환경이 안정되고 암면배지는 인공 zeolite 첨가로 배지의 CEC를 대폭적으로 개선시키는 효과가 컸다. This study was conducted to investigate the effects of artificial zeolite and various ion exchangers supplemented in rockwool on the ion exchangability of muskmelon. The results obtained were as follows ; Plant height was higher in the treatment of Ca type artificial zeolite as of 131.2cm than that of control as of 124cm, and same trends were shown in fresh weight of leaf and stem. Fruit weight was increased by supplement of artificial zeolite, but there were no significant differences in the sugar degree and external appearance as influenced by supplementing artificial zeolite. Supplement of artificial zeolite stabilized the pH and increased the ion exchange capacity of nutrient solution. Nutrient absorption was more favorable and led to growth promotion. This study was demonstrated that supplement of artificial zeolite in rockwool slab was improved the stabilization of root environment and increased ion uptake of muskmelon plant.
대청 열수 추출물의 염색 온도, 시간 및 매염제에 따른 견과 면직물의 염색성
장홍기,김선호,박윤점,이승진,송채은,백진주,허북구 인간식물환경학회 2012 인간식물환경학회지 Vol.15 No.1
To gather the data related to utilization of the natural dyeing materials for the horticultural therapy program, we examined the effects of dyeing temperature and time of hot-water extract of woad(Isatis tinctoria) on dyeability of silk and cotton fabrics. After making 1% hot-water extract from the traditional blue dyes, I. tinctoria, silk and cotton fabrics were dyed by dipping in the extracting solution at 70~80℃ for 20 minutes and at 80~90℃ for 20 minutes, respectively. Mordants used in this study were AlK(SO4)2·12H2O, CuSO4 and FeSO4. Basically, silk and cotton fabrics were treated with 3% solution of these mordants at 25±2℃, and dyed for 20 minutes afterwards. Both the silk and cotton fabrics in the dyeing time and temperature, were less likely to be affected. The surface colors of silk and cotton fabrics were R, RP and YR levels. Silk and cotton fabrics were less influenced by dyeing time and temperature. However, those were significantly differenced between kinds of mordants. The values of Hunter a had ranged from 2.76 to 21.03 in silk and from 0.09 to 11.06 in cotton. The values of Hunter b had ranged from -0.16 to 16.50 in silk and from -0.79 to 12.16 in cotton. In addition, ᐃE values had ranged from 27.23 to 44.11 in silk and from 11.36 to 20.98 in silk. Therefore, we suggest using different mordants to dye fabrics a variety of colors with leaf extracts of Isatis tinctoria, although silk and cotton fabrics were dyed at 70~80℃ and 80~90℃, respectively, for 20 minutes. 천연염색을 원예치료 프로그램에 활용하기 위한 자료 확보 차원에서 전통적인 청색염료인 대청(Isatis tinctoria)의 열수 추출물 1%액을 이용하여 염색온도와 시간을 달리하여 견과 면직물에 대한 염색성을 조사하였다. 염색 온도는 견직물의 경우 70~80℃에서, 면직물은 80~90℃에서 20분간 침지 염색을 하였으며, 매염은 명반[AlK(SO4)2·12H2O], 황산구리(CuSO4) 및 황산제1철(FeSO4)을 각각 3% 농도로 하여 25±2℃에서 20분간 후매염을 기본으로 하였다. 견과 면직물의 표면색은 R, RP 및 YR 계열로 나타났으며, 견과 면직물 모두 염색시간과 온도의 영향은 적게 받았으나 매염제 종류에 따른 차이가 컸다. 헌터 a값은 견직물의 경우 2.76~21.03, 면직물은 0.09~11.06을 나타냈으며, b값은 견직물의 경우 -0.16~16.50, 면직물은 -0.79~12.16을 나타내었다. 염색포의 ᐃE값은 견직물의 경우 27.23~44.11, 면직물은 11.36~20.98을 나타내었다. 따라서 견직물은 70~80℃, 면직물은 80~90℃에서 20분 정도로 염색을 하되, 매염제를 달리하여 다양한 색상으로 발색을 시키는 것이 좋을 것으로 생각된다.
온실멜론의 암면재배에 있어서 수분기의 양분공급제한이 생육 및 양분흡수에 미치는 영향
장홍기,정순주 한국생물환경조절학회 1997 시설원예‧식물공장 Vol.6 No.1
This experiment was carried out to investigate the effects of limited nutrient supply during 21 days before and after pollination stage on the growth, fruit quality and nutrient uptake of muskmelon in rockwool culture. Muskmelon, cv. Earl's Favorite seeds sowed on rockwool cube and transplanted on rockwool slab($90\times15\times7.5cm$) when 2 to 3 true leaf appeared on Sep. 6, 1991. Three kinds of nutrient composition recommended by Shizuoka university, combinated with the composition of Otsuka house A and composition Shizuoka III. One half of calcium nitrate(Ca(NO$_3$)$_2$.4$H_2O$) for limiting nitrogen supply during 21 days was treated and then fertigated the nutrient composition recommended by Shizuoka university up to harvest time. Trickling nozzles(Netafim Co. Israel) were used for fertigation of nutrient solution and noncirculating system was employed. Temperature was maintained $18^{\circ}C$ in night but 23 to $25^{\circ}C$ for 10 days after pollination for softening the fruit. The drainage ratio of nutrient solution was adjusted 20 to 30 percent. Fertigated and drained amount, and the pH and EC of nutrient solution were recorded. The concentrations of mineral elements including N, P, K, Ca, and Mg were analyzed and compared among treatments. In both autumn and winter cultivation, the limitation of nutrient supply by adjustment of nutrient composition(NO$_3$-N : 8meㆍ$\ell^{-1}$) caused the nutrient deficiency in muskmelon plant due to the limited nutrient supply. After pollination nutrient limitation by the lowering the nitrate retarded the over thickening of upper leaves of muskmelon but plant height and fresh weight of fruit were higher in the plot of nonlimited nutrient supply. The phenomena were attributed to the differences of the amount of nutrient uptake due to the limited time of nutrient solution, duration of nutrient supply and concentration of nutrient solution. These results suggested that increasing nutrient supply in the pollination stage was favorable for better appearance of fruit and improving fruit quality. Further trials would be required for the incre-ment of sugar degree of muskmelon grown in rockwool.