• Korean Journal of Organic Agriculture
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• v.19 no.spc
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• pp.291-294
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• 2011

We studies a model for management of pepper anthracnose based covering method and spraying system in field. 1. Among 82 organic fungicides, 42 materials showed most effective inhibition against mycelia growth of the Colletotrichum acutatum in vitro. 23 formulated biocontrol agents were chosen to control the disease from 42 biocontrol agents in greenhouse. In the end, five kinds (2 plant extracts, 2 biopesiticides, 1 Bordeaux mixture) were selected from 23 materials in the field. 2. The mulching materials of bed covering in fruit season were thin non-woven fabric sheet and black plastic. The use of a fabric sheet was reduced the spread of anthracnose as compared to the plastic covering. 3. The application with the chosen materials was reduced 34% of anthracnose for 7 times sprays to planting 70 days as compared to the untreated control. In yield, nonwoven fabric sheet with formulated biopesticides was increased 17% than black plastic. 4. This result indicated that the developed biocontrol strategy could be an effective and economic crop protection system in organic pepper cultivation field.

• Korean Journal of Organic Agriculture
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• v.19 no.spc
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• pp.279-282
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• 2011

This study was carried out to development the environment-friendly control method of Myzus persicae using Beauveria bassiana and Environment-friendly agricultural materials (EFAM). Germination rate the dried conidia of B. bassiana was 90 percent at $24{\sim}27^{\circ}C$ temperature condition. Mortality of M. persicae was 56.7% at $1{\times}10^7$ cfu/ml conidia concentration. Four EFAM such as Pachungtan, Wangjungwang, Newbiodakill, Muginchon were low toxicity to B. bassiana growth. Among them, Muginchon (derris extract) and Wangjungwang (neem extract) could have synergistic effect to aphid mortality when mixing treat with B. bassiana, which protection value was 99% in 3 days after treat.

• Proceedings of the Korean Society of Organic Agriculture Conference
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• 2009.12a
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• pp.314-314
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• 2009

The effects of mixtures of each of rice hull charcoal and wood charcoal with pyroligneous acid on the cultivation and antioxidant activities of rice were investigated. Results of the total phenolic compounds, DPPH radical electron-donating ability and xanthine oxidase stress activity analyses revealed that the environment-friendly materials increased the total antioxidant capacity in rice. In the case of palatability of rice, total amylose blue value and starch-I2color reaction analyses, data showed that environment-friendly materials generally decreased the amylose content of rice. Also, the environment-friendly materials improved the rice endosperm quality.

• Journal of Applied Biological Chemistry
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• v.56 no.2
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• pp.69-78
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• 2013

This study reviewed the adjuvants or extractants used in environment-friendly organic agro-materials used in a range of advanced countries or institutes. We observed that potassium hydroxide and fermented ethyl alcohol are generally acceptable extractants, and the inert ingredient list 4 of United States Environmental Protection Agency (US EPA) is applicable for crop production adjuvants.

• Korean Journal of Organic Agriculture
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• v.19 no.spc
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• pp.287-290
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• 2011

Environment friendly agricultural material products (EFAMs) in current market were evaluated for their insecticidal or acaricidal activities. EFAMs were evaluated against Tetranychus urticae, Plutella xylostella, Myzus persicae and Nilaparvata lugens in spray method. Several EFAMs indicated high control value in spray method. Hatchability of T. urticae was relatively high after EFAM treatment. some materials show high insecticidal activities against P. xylostella larvae but not against eggs. Few mete rials showed more than 80% insecticidal activities against M. persicae and N. lugen. The control value of more than half the materials for pest control was lower than 60%. EFAMs containing S. flavescens, neem oil and Rape showed higher control value.

• Korean Journal of Organic Agriculture
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• v.21 no.1
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• pp.49-59
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• 2013

The Purpose of this paper is to analysis on farmer's awareness and satisfaction level of the project for developing large-scale environment-friendly agricultural districts (LSEAD). To analysis farmer's awareness and satisfaction level, a series of farm household surveys were conducted on farmers, take part in the project for developing LSEAD. The sample size of the survey is 80 respectively. As a survey result, awareness and practical use of facilities & equipment shows a little different outcome. Satisfaction level of the project for developing LSEAD is summarized as follows. Influence on disposal of livestock excretions and farmer's consciousness change appears 4.47 and spreading environment-friendly agriculture 4.44, distribution of environment-friendly agricultural product 4.33, and demand of environment-friendly agricultural materials 4.04. In order to sustainable development of LSEAD, a governance system should be established.

• Korean Journal of Organic Agriculture
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• v.23 no.1
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• pp.19-30
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• 2015

The objective of this study is to analyze the performance and farmer's awareness on the large-scale environment-friendly agricultural districts (LEAD). For this, we survey 393 farmers who cultivate in the 14 LEAD. Most of farmers aware a necessity of LEAD project. They have a higher awareness and practical use on the 'production facilities and equipments for environment-friendly agricultural materials' and 'resource recovery center of crop-animal farming'. The spread and consciousness on the environment-friendly agriculture increase before LEAD project. Also the environment-friendly agricultural areas and incomes slightly increase. The results of this study show that the LEAD project need a modification in to response to change of agricultural issues and customer's needs.

• Proceedings of the Materials Research Society of Korea Conference
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• 2007.05a
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• pp.34.2-34.2
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• 2007

• Korean Journal of Organic Agriculture
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• v.21 no.3
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• pp.363-372
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• 2013

This experiment was carried out for development of environment-friendly agriculture materials to control Bemisia tabaci (Gennadius) in eggplant. Plant growth investigated the spray at intervals of 7 days after transplanting on 8 environment-friendly agriculture materials, such as egg-yolk and cooking oil, Results were to be good in the control and neem products. B. tabaci population density adult and nymph was low at the dinotefuran WG chemical treatment, and also low neem products of environment-friendly agriculture material. We have investigated the effect of different concentration of neem products on B. tabaci population density. Yield was high in the dinotefuran WG, and hight in the neem products and papper seed oil, but low in the sophora extracts and Ginko net sarcocarp. In the case of neem products treatment indicated 52 percent yield more than control.

• Proceedings of the SAREK Conference
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• 2008.06a
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• pp.981-985
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• 2008

Construction company's role is getting bigger recently because of interest of indoor air quality problem. The using environment-friendly building finishing material is the most benefit method to reduce pollutants in house. It is confirmed the actual condition of environment-friendly building finishing material such as wallpapers, wooden flooring boards, glues, paints, adhesives, plaster boards that are used the work of apartment construction in 2006-2007. It shows that environment-friendly materials have excellent grade mostly, general materials have pass I, pass II grade mostly and are high TVOC emission.