간행물
한국유기농업학회지 KCI 등재 Korea Journal of Organic Agriculture
- 발행기관 한국유기농업학회
- 자료유형 학술지
- 간기 계간
- ISSN 1229-3571 (Print)2287-819X (Online)
- 수록기간 1992 ~ 2020
- 주제분류 농수해양 > 농학 농수해양 분류의 다른 간행물
- 십진분류KDC 523DDC 630
권호리스트/논문검색
Vol.10 No.3 (2002년 9월) 7건
1.
2002.09
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This study aims to provide quite recent information on the organic agriculture in developed countries such as German, UK, Switzerland and USA and on the current activities of international research institutions of organic agriculture. The establishment and activity of ENOF in EU and ARNOA in Asia, IIRNOA in IFOAM was introduced shortly. Institute of Organic Agriculture in FAL/ Germany and FiBL in Switzerland, OMRI in USA, HDRA in UK and Schweisfurth Foundation in Germany were described. Also the educations in European universities for organic agriculture and the research activities and technical education system for organic farming were described. All of these informations could be useful for the further development of the strategy for Korean organic agriculture in education and research.
2.
2002.09
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This paper aims to provide quite recent information on the organic industry in the U.S. Major focuses are on the development of cultivation and marketing of fresh and processed organic produce and foods, newly enforced certification program, consumers" purchasing behaviors toward organic foods, and social survey results administered to the organic farmers in the U.S. The U.S. recorded 8 billion dollars" sale of organic foods in 2000, which was the largest in the world and showed 23% growth compared to the previous year. Yet the organic industry is still a niche market, occupying merely 1.5% of total food sale amount. The natural foods markets have not been so concentrated in the U.S., but it is changing and a few wholesale mart such as Whole Foods is emerging. Recent introduction of new certification program provides unified and sole standard at the federal level to which every certifier needs to adjust itself in order to be accredited by the government. According to a social survey, consumers purchase organic foods because they concern about health, they stick to their own modes of life favoring natural foods, and so on. Another social survey shows that most organic farmers sell their produces to wholesalers, distributers, or producer coop, and direct sale to visitors at their own farm comprises of about 8 percent of their organic land.
3.
2002.09
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In oder to evaluate the effects of functional composts which include elvan, jade and loess, the growth and the yield of Chinese Cabbage and its content of sugar, nitrate and vitamin C were analysed. This study was conducted in lysimeter which was installed in the Experimental Farm of Dankook University.
Total fresh weights of Chinese Cabbage were higher in the treatments of compost with mixture of elvan, jade and loess, while numbers of leaf was not increased in those treatments compared to control plot. Leaf length increased more than leaf width, specially in the plot of evlan treatment. Fresh weight of leaf blade and midrib in outer leaf was highest in the plot of elvan treatment among the 6 treatments. Sugar content in the Chinese Cabbage showed lower in the treatment of compost with mixture of elvan, jade and loess compared to control plot. Vitamin content in midrib was high in the treatment of compost with mixture of elvan, jade and loess compared to control plot. Vitamin content was high in leaf blade compare to those in midrib, and it showed highest value in the treatment of compost with mixture of jade.
Nitrate concentration of leaf blade and midrib in the treatment of compost with mixture of loess was lowest at 2,021ppm and 2,235ppm respectively. It shows the effective function of mixture compost with jade, loess and elvan to decrease nitrate content in the Chinese Cabbage.
4.
2002.09
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The experiment described in this paper focused on determining the effects of hightemperature(20℃) treatment of Satsuma mandarins, prior to their storage, on their color development and quality. Hightemperature treatment promoted fruit skin color during the storage, decreased the weight loss regardless of their color at the time of their harvest and reduced the decay occurrence until the middle of March, but there was no difference between treatments after the end of March. There was a tendency of higher soluble solid and acid levels in the fruit when hightemperature treatment was applied but this difference was not significant.
5.
2002.09
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This study was conducted to investigate an effects on agochemical alternative materials such as the wood vinegar, a lactic acid bacteria serum, the fermented plant juice, the brown rice vinegar and a Chitosan used for amount and qualities of fruits and to examine the pest protection efficiency for their uses in the apple and pear orchard farms. An apple yields in the orchard cultivated with using the agochemical alternative materials without appling the fertilizer and pesticides were decreased at 56% relative to the conventional farming practice method. Also, it was indicated that there was difficult to produce the fruits with marketability because the small sizes of fruits were produced.
For the quality of fruits, the brix of apple produced in the orchard cultivated with using the agochemical alternative materials was similar, but Vitamin C content was greater than that of the conventional farming practice method.
As a results of treating with the wood vinegar, a lactic acid bacteria serum, the fermented plant juice, the brown rice vinegar and a Chitosan instead of applying pesticides, the fruit disease in the Chitosan treatment was a little decreased, but was great occurred in the other treatments compared with the conventional farming practice method. However, it observed that brix and Vitamin C content of apple produced in the Chitosan, brown rice vinegar, fermented plan juice and fish amino acid treatments and in the Chitosan, brown rice vinegar, charcoal power and peat moss treatments were greater than those of the conventional farming practice method, respectively.
Over all, it considered that there was very difficult to manage the orchard depended on the agochemical alternative materials without appling the chemical fertilizer and pesticides in the apple orchard, but it might be proper to use the agochemical alternative materials as an auxiliary means to decrease the appling amount of chemical fertilizer and pesticides. Furthermore, the general effects on the agochemical alternative materials to the perennial fruits should be investigated with considering the changes of soil fertility, soil microbial status and natural enemy creatures after treating them for a long time.
6.
2002.09
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This study was carried out to investigate the effects of natural materials on quality and yield of radish. The GB10, chitofarm, chaff charcoal, and chaff charcoal sap were used as natural materials. The total plant weight, root weight, root length, and root width of radish in treatment with natural materials showed significant difference compared with control. The yield of radish in 1% of GB₁₀ treatment was increased 75% compared with control. The chemical components were increased in total plant of radish treated with natural materials compared with control. This appears that natural materials increase the quality of radish.
7.
2002.09
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The developement of insecticidal soaps made by various fatty acids and organic control for insect by using of insecticidal soap(fatty acid salts) were empolyed. And the results were as follows：
1. To determine the input volume of potassium hydroxide for saponification of fatty acids, there were compared to individual acid value of fatty acids. in case of coconut fatty acids for saponification was 266.3 mg of potassium hydroxide(266g/1kg of fatty acid) was calculated.
2. To make the 25% soap content by coconut fatty acids, there was required for the 266g of potassium hydroxide and 3,459 liter of soft water. Then the liquor of soap was 4,644 liter.
3. The progress of insecticidal soap made by fatty acids was accomplished indirect heating and stirring reactor (1)to make the volume of potassium hydroxide solution and warming up(90℃) (2)input volume of individual fatty acid (3)more than 30 min stirring reaction (4)cooling progress.
4. Insecticidal value of insecticidal soap was observed more than 92% the dilution of 50 dilution solution in consecutive 5 days of 2 treatments of the 25% soap made by coconut fatty acids on the red pepper. And insecticidal value of insecticidal soap was observed more than 94% the 100 dilution solution in consecutive 5 days of 3 treatments of the 25% soap made by coconut fatty acids on red pepper and cabbage.
5. The treatment of two times of 25% soap made by coconut fatty acids at the 50 dilution solution and 100 dilution solution in spider mite on red bean has 100% insecticidal value.
6. There was no observation phytotoxic sypmtons on red pepper in field, except for 25% soap made by carprylic acid.
7. Over the two times over 0.1% in addition of isopropyl alcohol was to improvement the insecticidal effect, but there was no effect in addition of diatomaceous earth.
