• Title/Summary/Keyword: 석회보르도액

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Current Status of Lime Bordeaux Mixture Research using Properties of Lime based Minerals (석회계 광물 특성을 활용한 석회보르도액 연구 현황)

  • Kim, Young-Jin;Seo, Jun-Hyung;Kim, Yang-Soo;Cho, Kye-Hong;Cho, Jin-Sang
    • Resources Recycling
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    • v.31 no.3
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    • pp.16-26
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    • 2022
  • Limestone is the largest mineral resource in South Korea and is used in various industries, particularly as a primary raw material in the cement and iron industries. However, research on the utilization of limestone in fields such as agriculture, powder, and green chemistry is severely lacking. In this review, studies concerning the crop antibacterial industry using unslaked or slaked lime produced from limestone were analyzed. Reports regarding lime bordeaux mixture were also considered. By compiling research results, processing technologies for improving the antibacterial efficiency of lime bordeaux mixture are discussed. In addition, plans for the revitalization of research on crop antibacterial agents through the limestone processing industry were summarized.

Effect of Bordeaux Mixture on Control of Rice Leaf Blast (벼 유기재배에서 석회보르도액을 이용한 벼 잎도열병 방제 효과)

  • Kang, Beom-Ryong;Kim, Seon-Gon;Kim, Do-Ik;Lee, Yong-Hwan;Choi, Kyong-Ju;Choi, Yong-Soo
    • Research in Plant Disease
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    • v.14 no.3
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    • pp.182-186
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    • 2008
  • Recently organic farming practice of rice has been emerged in Korea, but one of the major limiting factor is the no effective environmental-friendly agro-materials to control major plant diseases. Bordeaux mixture has been used effectively as a preventive agro-chemical. The aim of this study was to investigate efficacy of Bordeanux mixture on control of rice blast caused by Magnaporthe grisea which is one of the disruptive rice diseases in world-wide. In greenhouse experiment, pre-treatment of 6-6 type of Bordeaux mixture before inoculation of spore suspension of M. grasea showed 71 % of control value. In field experiment, preventive applications of 4-8 and 6-6 types of Bordeaux mixture showed over 71 % of the control value. Chemical injury on rice leaves were not found in the application concentrations of all types of Bordeaux mixture, but observed in applications of Bordeaux mixtures between 30 and 100 diluted concentrations. This results indicate Bordeaux mixture can be used as an effective environmental-friendly agro-chemical to control rice blast disease in the field.

Effect of Organic Materials and the Removal of Apical Shoot on Controlling Cucumber Downy Mildew (유기농업자재와 순지르기를 이용한 오이 노균병 방제)

  • Park, Jong-Won;Kim, Yong-Ki;Park, So-Hyang;Hong, Sung-Jun;Shim, Chang-Ki;Kim, Min-Jeong;Park, Jong-Ho;Han, Eun-Jung;So, Hyun-Gyu;Kim, Seok-Cheol
    • Korean Journal of Organic Agriculture
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    • v.24 no.4
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    • pp.919-929
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    • 2016
  • This study investigated the effect of organic materials (Bordeaux, Loess-sulfur) and the removal of apical shoot against downy mildew disease on cucumber cultivated in greenhouse. Five kinds of Bordeaux were made by adjusting mixing ratio of lime and copper sulfate in order to elucidate the optimal combination. The 4-6type Bordeaux was selected as the most effective combination for controlling cucumber downy mildew. Loess-sulfur showed inhibitory activity against cucumber downey mildew, but it was less effective than Bordeaux. It was confirmed that apical shoot cutting could reduce the incidence of cucumber downy mildew disease by 56.3%. When apical shoots of susceptible cucumber variety were cut at different leaf stages, disease incidence by early apical shoot cutting treatment was lower than that of late apical shoot cutting treatment. However in a resistant variety, 'Heukryungsamcheok', disease incidences of all cucumber apical shoot cutting treatments were lower than that of non-cutting treatment, but there was no differences between apical shoot cutting treatments due to low disease incidences. In addition, when organic materials and apical shoot cutting treatment were carried out in parallel, the combined treatments of organic materials and apical shoot cutting showed low disease incidence of cucumber downy mildew compared to untreated control. The lowest disease incidence of cucumber downy mildew was recorded in the combined treatment of 4-6type Bordeaux and apical shoot cutting. This study confirmed that apical shoot cutting can reduce the disease incidence of cucumber downy mildew and the combined treatment of apical shoot cutting and organic materials showed higher suppressive effect against cucumber downy mildew.

Characterizations and Phenolic Compounds Analysis of Cheorwon Onion by Bordeaux Mixture Treatment (석회보르도액 처리에 따른 철원 양파의 특성 및 페놀화합물 분석)

  • Kim, Y.B.;Lee, H.J.;Park, C.H.;Kim, D.H.;Koo, H.J.;Chang, K.J.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.21 no.1
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    • pp.89-98
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    • 2019
  • The aim of this study was to evaluate the change of phenolic compounds after bordeaux mixture treatment on Cheorwon onion. Onion is a perennial plant belonging to the lily family. It is native to Persia of Southwest Asia. It is cultivated much in the temperate regions of the world. Onion is a good name for the 'Okchong' to drop blood cholesterol and cardiovascular blood flow to increase the prevention of adult diseases. Cheorwon area is inland, but it has high continental climate due to its high altitude. After the treatment with bordeaux mixture, the weight, width and plant height of the onion were affected to some extent. In the phenolic compounds, caffeic acid, ferulic acid, rutin, and kaempferol except benzoic acid, p-coumaric acid and quercetin were similar to or less than the control. Therefore, it was concluded that the treatment with bordeaux mixture had some effect on onion growth and phenolic compound contents.

Effects of Repetitive using Lime Bordeaux Mixture in the Copper Concentration of the Soil and Ginseng Root (석회보르도액 반복 사용이 토양과 인삼 체내 구리농축에 미치는 영향)

  • Jung, Won-Kwon;Ahn, Deok-Jong;Choi, Jin-Kook;Ryu, Tae-Suk;Jang, Myeong-Hwan;Kwon, Tae-Ryong;Park, Jun-Hong;Park, Sang-Jo
    • The Korean Journal of Pesticide Science
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    • v.18 no.4
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    • pp.404-408
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    • 2014
  • Three type of Lime Bordeaux mixture (LBM) that has been used since 1800's for control plant disease are used for eco-friendly ginseng (Panax ginseng) disease control. But it was restricted the use in the crops cultivation in some countries of Europe recently, because there is a possibility that the copper component is concentrated in the soil and plants with using LBM containing copper. According to the concentration and number of LBM spraying treatment, it was investigated copper and other components in soil and ginseng root. In case of LBM sprayed 33 times for three years, copper concentration was increased up to 75.9 ppm in the soil. However copper concentration of ginseng root was increased with 9.9~23.0 mg/kg in comparison with 8.38~11.39 mg/kg at LBM non-treatment. It has shown that the copper components can be concentrated to in the soil if used continuously in the long term.

과수의 병해방제와 살균제의 효과적인 사용법

  • 이두형
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.5 no.8
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    • pp.2-7
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    • 1984
  • 우리나라에 제일 먼저 도입된 과수는 사과이며 그후 경제적인 과수원이 조성된것은 1901년이고 국가적인 차원에서 시험연구사업이 시작된 것은 1906년부터이다. 과수병의 연구는 1910년 부터 배나무 붉은별무늬병을 비롯하여 몇가지 병에 대한 약제방제시험으로부터 시작되었다. 본격적인 농약으로서의 살균제는 석회보르도액이며 1945년 이전까지 주로 과수원에서만 사용되어 왔다.

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