• 한국유기농업학회지
• /
• 제19권4호
• /
• pp.529-541
• /
• 2011

Bordeaux mixture made with each grade of lime and copper sulfate was tested general property and disease control value. Bordeaux mixture was made by composition of each grade of lime (95%, 80%) with each grade of copper sulfate(98.5%, 95%). Phytotoxicity was evaluated to Bordeaux mixture made with each grade of lime and copper sulfate, and then low grade copper sulfate (95%) was more severely in the grapevine leaf. Bordeaux mixture, made with each grade lime and copper sulfate, were tried to evaluate control effects of downy mildew in field. As a result, Bordeaux mixture (95% of lime and 98.5% of copper sulfate, 6-6) applied 5 times at late in June was showed more effective disease control value than any other trials of Bordeaux mixture. There was no difference in nutrient status of petiole each treatment. But fruit characteristics were shown more slightly improved quality.

• 한국약용작물학회지
• /
• 제21권3호
• /
• pp.174-178
• /
• 2013

Lime-bordeaux mixture has been used to prevent diseases in the field of ginseng. The purpose of this study is to investigate the efficacy of lime-bordeaux depending on the concentration and treatment time on major diseases of ginseng such as Alternaria blight and anthracnose, and to evaluate the root growth of ginseng. Lime-bordeaux caused damage on leaf when it was sprayed on ginseng between April and early May. No difference was found in root growth by spraying lime-bordeaux mixture between ratio 4-4 and 8-8 ratio in concentration. Plot of 6-6 raito and 8-8 ratio appeared to be similar efficacy compared to that of practical chemical control. However, the plot of 4-4 ratio showed lower than that of chemical control.

• 한국약용작물학회지
• /
• 제18권4호
• /
• pp.244-247
• /
• 2010

It's crucial to control Alternaria blight and Anthracnose emerging mostly on ginseng leaves during the rainy season to increase the organic ginseng products. The purpose of this study is to investigate the efficay of lime-brodeaux spray on the ginseng leaves and evaluate the growth and yield of the ginseng, and the contents of ginsenoside and 70% ethanol extracts from 3-year-old ginseng variety, Cheonpoong. Lime-bordeaux sprayings were conducted in the ratio of 6-6 in June, 8-8 from July to September every 15 days. After June 10, the spraying have no effects on the growth leaf and stem, and there was no significant increase in chlorophyll contents. The ratio of intact leaf and root were distinctly increased because Alternaria blight and Anthracnose were decreased by spraying lime-bordeaux mixture. Root weight per plant and root yield were increased by 15%, and 62% in 3-year old ginseng, respectively, because the ratio of intact leaf and root were higher by using lime-bordeaux mixture. Furthermore, spraying of lime-bordeaux mixture is prone to increase the ratio of rusty root in ginseng. Spraying of lime-bordeaux mixture decreased both of the contents of ginsenoside and 70% ethanol extract by 13.7%, and 15.2% in 3-year-old ginseng, respectively.

• 자원리싸이클링
• /
• 제31권3호
• /
• pp.16-26
• /
• 2022

석회석은 국내 최대의 광물자원으로 다양한 산업에 활용하고 있으나 대부분 시멘트 및 제철 산업에 집중되어 있는 실정으로, 농업, 분체, 환경 등의 산업분야와 관련된 석회석 가공 산업 연구는 매우 부족하다. 본 연구에서는 석회석을 가공하여 생산할 수 있는 생석회 및 소석회를 활용하는 작물 대상 항균제 산업과 석회보르도액의 주요 현황, 연구 등을 분석하여 자료를 제시하였다. 이를 통해 광물 자원 및 소재 분야에서 석회보르도액의 항균 성능 향상을 위한 가공 기술 분야를 검토하였고, 석회석 가공 산업을 통한 작물 대상 항균제 분야의 활성화 방안에 대한 내용을 정리하였다.

• 한국자원식물학회지
• /
• 제26권3호
• /
• pp.370-373
• /
• 2013

Korean ginseng has been used for thousands of years as an important medicinal plant. Lime-Bordeaux mixture (LBM) was made with copper sulfate and quicklime, which was sprayed instead of pesticides in ginseng field. Net photosynthesis ($P_N$) was compared between Treatment and Non-treatment of LBM in 3 Year Old Ginseng. $P_N$ in control plot recorded $2.94{\mu}mol\;(CO_2)\;m^{-2}s^{-1}$ at the first day of experiment, which was similar until the last day of experiment. However, The $P_N$ in LBM recorded $2.23{\mu}mol\;(CO_2)\;m^{-2}s^{-1}$, which was lower than that in control plot. As time goes by, The $P_N$ in LBM was gradually increased up to $3.21{\mu}mol\;(CO_2)\;m^{-2}s^{-1}$ and finally, it was similar with that in control plot at 7th day as a $3.20{\mu}mol\;(CO_2)\;m^{-2}s^{-1})$.

• 한국약용작물학회지
• /
• 제22권6호
• /
• pp.483-488
• /
• 2014

Lime-bordeaux mixture (LBM) has been used instead of pesticides in ginseng field and orchard since the 1960's in Korea. In this experiment, LBM was made with different concentrations and sprayed in the field of ginseng for eco-friendly cultivation. Growth characteristics and disease such as alternaria blight, anthracnose, and gray mold were investigated in 4-5 year old ginseng after spraying LBM. LBM caused a little damage on leaf when it was sprayed at the time of leafing stage, late April and early May. Root weights of five-year-old ginseng were 43.1~51.5 g and 41.2~46.6 g in the plot of mid-April and mid-May treatments, respectively. These growth levels were further reduced as compared with that of the chemicals treatment plot. The rate of diseases in the plot of 6-6 and 8-8 ratio were 0.0~4.8% and 0.0~4.4%, respectively, which was similar with that in the plot of chemical control for alternaria blight and anthracnose. However, LBM had little effect on controling gray mold. It showed lower control effect in the plot of 4-4 ratio than that of chemical control. This result will be expected to be a useful guide that can be used in the field to the farmers of the ginseng.

• 한국유기농업학회지
• /
• 제28권2호
• /
• pp.223-233
• /
• 2020

본 연구에서는 친환경 농가에서 사용되고 있는 바이오 황(Bio-S, bio-sulfur)을 이용하여 감귤 더덩이병(Citrus scab)에 대한 발병 억제 효과를 알아보고자 수행되었다. 바이오 황이 감귤 더뎅이병의 발아관 생장 억제 효과는 감귤 더뎅이병균을 PDB와 Agar 배지에서 배양하여 발아관을 관찰한 결과 접종 40시간과 88시간 모두 바이오 황 500배, 1,000배, 2,000배 처리구에서 발아관 형성이 억제되었으며, 4,000배 이상 희석배수가 높아질수록 발아관은 형성되었으나 무처리구에 비해 생장이 억제되었다. 포장에서 감귤 봄순 잎에 대한 더뎅이병의 발병 억제 효과는 무처리구 이병율은 40.3%였으며, 화학농약인 Imibenconazole 수화제 이병율이 5.3%을 보였으며, 친환경 농업에 사용하는 석회보르도액 2-4식과 6-6식은 모두 10.3%, 바이오 황 500배 12.3%, 석회유황합제 15.3%로 비슷한 경향을 나타냈으며, 반면 바이오 황 1,000배에서는 24.0%로 비교적 높은 이병율을 보였다. 감귤 과실에 대한 시험결과 무처리구 이병율은 79.3%였으며, Imibenconazole 수화제 이병율은 4.0%을 보였으며, 석회보르도액 2-4식 33.8%, 6-6식 42.0%, 바이오 황 500배 43.3%, 석회유황합제 44.8%로 비슷한 효과를 나타냈으며, 반면 바이오 황 1,000배에서는 78.0%로 비교적 높은 이병율을 보였다. 따라서 감귤 더뎅이병은 봄순이 전개되는 5월부터 감귤의 잎에 발생하기 때문에 봄순이 전개되기 전인 4월 중하순부터 예방방제를 시작하여 예찰을 통해 방제하면 높은 방제율과 노동력 및 영농비용 등을 절감할 수 있을 것으로 생각된다.

• 한국토양비료학회지
• /
• 제50권5호
• /
• pp.401-408
• /
• 2017

Organic amendments such as animal waste compost, lime-bordeaux mixture, and lime sulphur mixture contain heavy metal(loid)s which are toxic to human being, animal, and plant. The objective of this study was to compare heavy metal(loid)s contamination of soil between conventional and organic farm. Soil samples were collected from 10 conventional and 38 organic fruit farms. At each sampling point, top (0~15 cm) and sub soil (15~30 cm) were taken using hand auger. Total concentration for arsenic (As), cadmium (Cd), copper (Cu), nikel (Ni), lead (Pb), and zinc (Zn) in the collected soil were measured. The pollution index (PI) for heavy metal in organic farms indicated it was unpolluted area. However, mean value of PI for organic farms (0.143) was higher than that for conventional farms (0.122). High Geoaccumulation index (Igeo) for Cu, Pb, and Zn implied that grape farms were more polluted than others fruit farms because a lot of lime-bordeaux mixture and lime sulphur were applied in organic grape farms. Especially, top soils showed higher level of contamination than sub soil. Based on the above results, organic amendments might cause accumulation of heavy metals in soil. Therefore, particular attention should be paid for concentration of Cu, Pb, and Zn, when organic amendments are used in the organic fruit farms.

• 농업과학연구
• /
• 제5권1호
• /
• pp.7-14
• /
• 1978

각종(各種) 살균제(殺菌劑)가 주요과수(主要果樹)의 화분발아(花粉發芽) 및 화분관신장(花粉管伸長)에 미치는 영향(影響)을 조사(調査)하였던바 다음과 같은 결과(結果)를 얻었다. 1. Difolatan-wp, Lime-Sulfur, Captan-wp, Bordeaux액(液)은 화분발아(花粉發芽) 현저(顯著)히 억제(抑制)시켰다. 2. Daconil-wp과 Zimaneb-wp가 미치는 영향(影響)은 Difolatan-wp등(等)에 비(比)하여 다소(多少) 가벼웠다. 3. Polyram-combi-wp, Topsin-wp, Benlate-wp는 발아(發芽)를 억제(抑制)하지 않았으나 화분관신장(花粉管伸長)을 다소(多少) 저해(沮害)하였다. 4. Polyoxin-wp는 오히려 화분관신장(花粉管伸長)을 촉진(促進)시켰다. 그러나 발아율(發芽率)의 증가는 없었다.

• 농약과학회지
• /
• 제18권4호
• /
• pp.404-408
• /
• 2014

석회보르도액 처리에 따른 토양 화학성의 변화는 거의 없었으나, 석회보르도액의 주성분인 구리의 함량은 지속적으로 증가하였다. 3년간 총 33회 살포하였을 때, 토양 10 cm 이내 토양의 구리함량은 최고 73.3 mg/kg까지 증가하였다. 무처리 토양 내 구리함량이 0~1.5 ppm 정도인 것에 비하여 많이 증가하였으나, 토양오염우려수준(150 ppm)보다는 낮았으며, 인삼체내 구리함량도 9.9~23.0 mg/kg으로 무처리구의 8.38~11.39 mg/kg에 비하여 크게 늘어나지 않았다.