• The Korean Journal of Pesticide Science
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• v.11 no.4
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• pp.281-288
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• 2007

This research was carried out to propose the Korean method for estimating the agricultural occupational pesticide exposure level in orchard. The UK-POEM (UK-Predictive Operator Exposure Model) was proposed as a bench-marking model and analysed its performance properties. To extrapolate the Korean agricultural conditions, application equipment, application method, work rate per day, application volume and spraying time of pesticide was surveyed for Korean 204 orchard farmhouse. This survey indicate that the major application equipments are speed sprayer(64.9%) and motor sprayer(33.9%). When they spayed the pesticide with a speed sprayer, they worked for more than 4 hours on area of 4 ha per day. In case of using motor sprayer, they worked for more than 4 hours on area of 1 ha. Based on the above survey result, Korean method for estimating the pesticide exposure level of agricultural worker was proposed finally.

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.815-817
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• 2011

본 논문에서는 로드셀을 이용한 Weighting 시스템 개발 및 비료량 조절시스템 개발을 통하여 주어진 경작면적에 주어진 양의 비료를 균일하게 살포할 수 있는 친환경 변량제어 비료살포기를 개발하고자 하였다.

• Journal of Convergence for Information Technology
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• v.10 no.10
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• pp.135-142
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• 2020

In the recent farming industry, there is a growing diffusion of drones, which are recognized as a crucial technology of the 4 th industrial revolution to cope with aging. Especially, filming and pest control using drones are representative fields that have different age groups for obtaining a national license of multicopter that is a ultra-light flying device, and can create profits after getting a license. However, pest control technology using drones has different spray effects depending on levels of operational proficiency, since this highly relies on an operator's operating skills. It is anticipated that if this issue is supplemented, the use of drones for pest control in the farming industry will diversify. For analysis of spraying characteristics of agricultural pest control drones, this study aims to formulate effective spraying hours and effective spraying intervals and suggest an algorithm, which facilitates an accurate calculation of pest control area depending on the kinds of pest control drones. This algorithm can be used in the field of pest control by improving scatterling issues caused by drone flight methods of drone pest controllers and building an optimum pest control manual in future.

• The Korean Journal of Pesticide Science
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• v.8 no.1
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• pp.30-37
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• 2004

This study estimated the correlation between surface area/weight ratios and pesticide residues in two varieties of tomato, mini tomato and tomato. The ratios of surface area/weight of mini tomato and tomato were $2.15cm^2g^{-1}$ and $1.00cm^2g^{-1}$ respectively. Pesticide residues were measured with four kinds of pesticide, chlorothalonil WP, chlorothalonil SC, oxadixyl WP, thiophanate-methyl WP. Ie residue amount of mini tomato was $1.4\sim2.4$ times higher than those in tomato regardless of the application date and frequency. The ratios of surface area/weight on tomato varieties played a key role for determining pesticide residue.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2003.07a
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• pp.199-204
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• 2003

본 연구는 축산농장을 출입하는 차량을 소독하여 가축전염병 발생을 예방하기 위하여 수행 되었으며 그 결과를 요약하면 다음과 같다. 가 축사진출입 차량소독기는 차량의 폭에 따라 약액살포 붐대가 이동하여 일정한 간격에서 약액을 살포하도록 제작하였다. 나. 붐대의 각도를 차량출입 반대방향으로 0$^{\circ}$, 15$^{\circ}$, 30$^{\circ}$로 살포각도가 변화하였을 때 살포 각이 커질수록 후면에 약액이 고르게 피복되었다. 다. 살포압력 10kg/$\textrm{cm}^2$, 20kg/$\textrm{cm}^2$ 이었을 때 약액피복면적비가 75%-95%로 차량 전체에 고르게 피복 되었다. 라. 본 시작기의 소독소요시간은 차량 한대당 0.0042시간으로 관행 0.0083시간에 비하여 50% 감소하였고 소요비용도 455원으로 관행의 1,099원에 비하여 59% 절감효과가 있는 것으로 나타났다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.4
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• pp.441-449
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• 1996

This study was conducted to find the changes of growth, seed yield and several characteristics of sesame by leaf spray of boron as a solution which is likely to be lack in the soil. It is carried out at low land developed 5 years ago. The amount of 200l /l0a boron as boric acid is sprayed in each treatment at the 11 node stage of sesame in main stem. The spraying concentrations of boric acid are 0.0, 0.2 and 0.4% in each treatment of the level low plot and the ridge height 15cm plot. The result shows that leaf area is increased in proportion to the concentration of boric acid in each treatment of the level low and the ridge height 15cm, and the degree of increase of each node order is remarkable in lower leaves and is more remarkable in the treatment of level low plot. The effects of leaf spray of boric acid are not only the increase of leaf area but also dry weight, no. of capsule per plant, 1,000 grains weight of capsule setting under middle position. As a result, the amount of seed is increased in 53% in the treatment of level low. The change of major characteristics according to leaf spray of boric acid is generally great in the treatment of level low. Especially the increase of leaf area in the part of upper leaves and low leaves is effective to improve other characteristics.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2002.07a
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• pp.90-95
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• 2002

벼농사의 노력과 비용을 최소화하기 위한 한 방법으로서 직파 기술이 이용되고 있으며 2001년 직파재배 면적은 건답직파 30,000㏊, 담수직파 42,800㏊로 담수직파 재배면적이 전체 직파재배 면적의 58%를 차지하고 있다. 담수 직파작업의 파종은 대부분 동력살분무기를 이용하고 있으나 파종균일도가 낮고 송풍에 의한 최아종자의 싹이 손상되는 문제에 의해 입모율이 떨어지는 문제점이 있다. (중략)

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2003.07a
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• pp.156-161
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• 2003

농약과 방제기가 개발되면서 적은 노력과 비용으로 넓은 면적의 작물을 병과 해충으로부터 보호할 수 있게 되어 수확량이 대폭 늘어나고 농사도 안정적으로 지을 수 있게 되었다. 이렇게 방제작업이 손쉽게 되었으나 농약을 필요량보다 적게 뿌릴 경우 병해충을 충분히 방제할 수 없고, 많이 뿌릴 경우 비용과 환경오염을 증가시키는 또 다른 문제점에 부닥치게 되었다. 현재 사용되고 있는 방제기로 농약을 살포할 경우 노출된 작물의 잎에서는 농약이 흘러내리는 반면 수관내부에 감추어진 잎이나 병해충이 주로 발생되는 잎 뒷면은 농약 부착이 미흡하다. (중략)

• Journal of agricultural medicine and community health
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• v.25 no.2
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• pp.245-263
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• 2000

This study was conducted to provide the basic data about the health effects of pesticide exposure among farmers for agricultural health study. We analyzed 412 self-administered questionnaires collected from the male farmers who spray pesticides in Kyoung-ju area, Korea. Survey questions were about chronic symptoms, acute symptoms while pesticide spraying, pesticide intoxication accident, safety rules, protective equipments etc. The correlations among the variables related to pesticide exposure and the factors in acute pesticide poisoning and chronic symptoms of farmers were also analyzed. For chronic symptoms, the prevalence of 'tiredness and languor', 'lumbago', 'nocturia', 'shoulder pain', 'numbness', and, for acute symptoms while pesticide spraying, the experience rate of 'itching sense of skin', 'dizziness/headache', 'fatigue', 'eye glaring' were high compared with other symptoms. For 'experience of intoxication accident by pesticide in family', 7.1% of the subjects experienced the accident and the causes were pesticide spraying, food contamination by pesticide, suicide etc. Among safety rules, 'take a bath after spraying', 'change clothes after spraying' were kept relatively well, and, for protective equipments, hat, boots, mask, gloves, protective clothes(lower) were put on relatively well. The factors associated with acute pesticide poisoning were the extent of keeping safety rules, spraying time, orchard cultivation, agricultural area and spraying days per year etc. And the factors associated with chronic symptoms were acute symptoms while pesticide spraying, agricultural area, farming career, extent of keeping safety rules, extent of agricultural work and the pesticide exposure index etc. From these results, it is suggested that to reduce the health effects by pesticide exposure among farmers, the education to promote to keep safety rules and wear protective equipments, and information services should be recommended. And further studies on the long term health effects of pesticide exposure among farmers are required.

• Life and Agrochemicals
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• s.257
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• pp.26-29
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• 2010

5월 중순부터 알에서 부화약충이 부화하기 시작하는데 꽃매미의 약충과 성충은 방제전용약제를 안전사용기준을 준수하여 살포하면 효과적으로 방제할 수 있다.