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중부지역 참깨 간작 들깨 재배시 파종기가 수량 및 품질에 미치는 영향
김영상,김기현,윤철구,허윤선,김익제,김영호,송용섭,이명희,Kim, Young Sang,Kim, Ki Hyeon,Yun, Cheol Gu,Heo, Yun Seon,Kim, Ik Jei,Kim, Young-Ho,Song, Yong-Sup,Lee, Myoung Hee 한국작물학회 2021 한국작물학회지 Vol.66 No.2
본 연구는 중부지역에서 참깨와 들깨의 작부체계를 개발하기 위하여 중부지역에 적합한 파종기를 설정하고 이에 적합한 참깨 간작 들깨의 작부체계를 개발하기 위하여 수행하였다. 전작물로 재배되는 참깨가 후작물 들깨에 미치는 영향과 파종기에 따른 수량성을 검토하고 참깨 간작 들깨 작부체계를 위한 재배방법을 개발하였다. 참깨 재배 중 들깨 간작을 위하여 전작물로 재배되는 참깨의 특성은 조생이며 경장이 짧은 품종이 적당하였으며, 후작으로 재배되는 들깨의 파종기를 설정하기 위하여 6월 중순, 6월 하순, 7월 초순에 들깨를 참깨 사이에 파종한 결과 6월 중순 파종에서 화방군수, 군당삭수 및 수량이 많았으며 파종기가 늦어질수록 들깨 수량은 현저히 낮아졌다. 전작물 생육특성에 따른 영향으로는 조생이며 경장이 짧은 참깨 품종 재배지에서 들깨의 생육 및 수량이 우수하였다. 참깨 간작 들깨작부체계 개선을 위하여 한 줄 재배(조간×주간) 110×20 cm와 두 줄 재배(조간×주간) 40×40 cm로 재배한 결과 두 줄재배에서 수량이 많았다. 이상의 결과로부터 중부지역에 적합한 참깨 간작 들깨 재배는 전작으로 재배되는 참깨는 조생이며 경장이 작은 품종을 선정하여 재배하고 들깨는 두 줄로 참깨사이에 간작으로 6월 중순에 파종하는 방법이 적합할 것으로 판단되었다. Perilla contains more than 60% of fatty acids. Linolenic acid is effective in preventing heart disease, improving learning ability, treating allergies, and preventing cancer. This study was carried out to improve the cultivation method to aid the stable production of perilla by developing a suitable inter-cropping system with sesame in the central region as well as to report a suitable planting time. The test results are summarized as follows. As the planting time of perilla in the inter-cropping system with sesame was delayed, the number of clusters and capsules decreased. The perilla yields in this system showed significant differences compared to that with the previous crops (sesame varieties) and planting period. The yield of perilla was significantly lower in the characteristic-Type B variety than in the characteristic-Type A variety and decreased significantly as the planting time was delayed. With regards to the quality characteristics of perilla, such as crude protein, crude fat, etc., there were no differences between previous perilla crops and those inter-cropped with sesame. The perilla composition did not show any difference during the planting period; however, with delay in the planting time, crude protein content increased but crude fat content decreased. Yield of perilla was 38% higher in a two-row (40 x 40 cm) system, compared to a single-row cultivation (110 x 20 cm) of perilla inter-cropped with sesame. These results suggest that the suitable method for inter-cropping perilla with sesame in the central region is to sow the characteristic-Type A variety in early May, and cultivate the perilla in two lines (40 x 40 cm) in mid-June. This was judged to be the best cultivation method in the central region.
Solvent Sublation of Trace Noble Metals by Formation of Metal Complexes with 2-Mercaptobenzothiazole
김영상,신제혁,최윤석,이원,이용일,Kim, Yeong Sang,Sin, Je Hyeok,Choe, Yun Seok,Lee, Won,Lee, Yong Il Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.1
A solvent sublation has been studied for the determination of trace Au(III), Pt(IV) and Pd(II) in waste water with their complexes of 2-mercaptobenzothiazole (MBT). Experimental conditions such as the concentration of HCl, the amount of MBT as a ligand, the type and amount of surfactants, bubbling rate and time, and the type of organic solvent were optimized for the solvent sublation, i.e., 25.0 mL of 2.0 M HCl solution and 30mL of 0.4%(w/v) MBT ethanolic solution were added to a 1.0 L sample to form stable complexes. The addition of 4.0 mL of 1 ${\times}$$10^{-3}$ M CTAB (cetyltrimehtylammonium bromide) solution was needed for the effective flotation accomplished by bubbling nitrogen gas at the rate of 40.0 mL/min for 35 minutes. As a solvent, 20.0 mL of MIBK (methylisobuthylketone) was used to extract the floated complexes. The procedure was applied to three kinds of waste waters. Au(III) was determined as 0.68 ng/mL and 0.98 ng/mL respectively for final washed water of two plating industries in Banwol. Pd(II) and Pt(IV) were not detected in any of the three samples. The recovery, which was obtained with analyte-spiked samples, were 95-120%.
김영상,최윤석,이원,이용일,Kim, Yeong Sang,Choe, Yun Seok,Lee, Won,Lee, Yong Il Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.8
Solvent sublation has been studied for the separation and determination of trace Zn(Ⅱ) and Pb(Ⅱ) in water samples. A synergy producing method was utilized to improve the efficiency of extraction in the sublation using an ion-pair of metal-naphth oate {M-(Nph)3- } complexes and tetra-n-butylammonium (TBA+ ) ion. After the M-(Nph)3- complexes were formed by adding 1-naphthoic acid to the sample solution, tetra-n-butylammonium bromide was added in the solution to form the ion-pair. And sodium lauryl sulfate (SLS) was added to make the ion-pair hydrophobic. The ion-pairs of the metal complexes were floated and extracted into methylisobutyl ketone (MIBK) from the aqueous solution by bubbling with nitrogen gas in a flotation cell. Metal ions in MIBK solution were measured by graphite furnace-AAS. Experimental conditions were optimized as follow so. After the pH of a 1.0 L water sample was adjusted to 5.0, 6.0 mL of 0.1 M 1-HNph and 10 mL of 0.03 M TBA-bromide were added to the sample to form ion-pairs, and 2.0 mL of 0.2%(w/v) SLS was added to make the ion-pairs hydrophobic. The solution was bubbled with 30 mL/min N2 gas for 5 minutes in a flotation cell. Linear calibration curves were obtained for the determination of Zn(Ⅱ) and Pb(Ⅱ) in several water samples. Reproducible results of showing a relative standard deviation of < 10% and recoveries of 80-100% could be obtained.
Changes in Growth Characteristics and Functional Components of Angelica acutiloba Kitagawa by LED
Ki Hyun Kim(김기현),Seong Hyun Yu(유성현),Young Sang Kim(김영상),Jae Ho Park(박재호),Ik Jae Kim(김익제),Young Ho Kim(김영호),Yong Sup Song(송용섭),Joung Hoon Lee(이정훈),Sun Hee Woo(우선희) 한국약용작물학회 2021 한국약용작물학회 학술대회논문집 Vol.2021 No.1
잘피(Zostera marina)서식지 복원을 위한 최적 이식방법 및 시기 선정에 관한 연구
박정임,김영균,박상률,김종협,김영상,김정배,이필용,강창근,이근섭,Park, Jung-Im,Kim, Young-Kyun,Park, Sang-Rul,Kim, Jong-Hyeob,Kim, Young-Sang,Kim, Jeong-Bae,Lee, Pil-Yong,Kang, Chang-Keun,Lee, Kun-Seop 한국조류학회(藻類) 2005 ALGAE Vol.20 No.4
Seagrass bed is an important component in coastal and estuarine ecosystems, providing food and shelter to a wide variety of fauna. Recently, seagrass coverage has declined significantly due to anthropogenic influences such as reclamation, dredging, and eutrophication and consequently, necessity of seagrass habitat restoration is rising. Transplantation experiments with Zostera marina using TERFS, staple method, and shell method have been conducted at Dadae Bay, Kosung Bay and Jindong Bay on the south coast of Korea to select an optimal transplanting method for restoration of Z. marina habitat. Three experimental sites located at the vicinity of natural Z. marina beds with an average water depth of about 4m. Z. marina plants, which were collected from donor bed in Koje Bay were also transplanted at 7 different time from October 2003 to July 2004 to find appropriate transplanting time. Density of Z. marina was monitored monthly at both transplanted areas and natural beds. Transplantation using the staple method showed the highest survival rate of transplant. Shell method was also an effective transplanting method at muddy areas in Kosung Bay and Jindong Bay, but not suitable at sandy areas in Dadae Bay. These results suggest that sediment composition of transplanting areas should be considered for the selection of the optimal transplanting method. Z. marina transplanted during fall usually showed the highest survival rate, while most Z. marina plants transplanted in summer died due to high lethal temperature during this period.