• Journal of Bio-Environment Control
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• v.26 no.4
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• pp.301-309
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• 2017

This study was conducted to provide basic data needed to calculate the crop loads for the greenhouse design. Four countries' crop loads for greenhouse structures were compared and the crop loads were measured directly and analyzed for various greenhouse crops, including tomato, strawberry, cucumber, and eggplant. According to the analysis results of four country's standards for the design crop loads, it was judged that the new design crop loads suit for greenhouse crops in our country should be suggested because our standards just used the design crop loads of other countries. The maximum crop loads per plant of tomato, cucumber, eggplant, and strawberry were 3.9, 0.75, 1.9 and $2.1kgf{\cdot}plant^{-1}$, respectively. The crop load per unit area of tomato was $8.5kgf{\cdot}m^{-2}$, which was much greater than the cucumber and eggplant's crop load of 2.1 and $2.4kgf{\cdot}m^{-2}$ respectively. The crop loads of tomato and cucumber, suggested by the greenhouse structure design standard of Korea, is $15kgf{\cdot}m^{-2}$, which is far greater than the values suggested by this research. It was judged that this was because our standard just used the Dutch standard, our crop load standard should be reviewed considering this difference. The crop load of strawberry, including the growing bed, was $21.0kgf{\cdot}m^{-2}$, which was much greater than the crop load in the Dutch standard.

• Life and Agrochemicals
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• s.267
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• pp.54-55
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• 2011

• Magazine of the Korean Society of Agricultural Engineers
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• v.40 no.1
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• pp.43-48
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• 1998

In order to provide basic information for the estimation of evapotranspiration for grass (Joycia Japonica), both field lysimeter experiment and model prediction were performed to estimate daily ET Various methods were used to predict daily reference crop ET and crop coefficients. Measured mean daily ET during the 1997 growing season was 4.5mm Model predicted mean daily ET during the 1997 growing season varied from 3.6 to 4.7mm depending on the prediction model Crop coefficients varied from 0.96 to 1.27 depending on the prediction model Comparison of the seven reference crop ET prediction methods used in this study shows that the Penman-Monteith method gave the smallest ET while the Hargreaves method gave the largest ET. The crop coefficient by the corrected Penman method was 1.03, which is closest to 1.0, suggesting that this method may he the best prediction method.

• Life and Agrochemicals
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• s.279
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• pp.34-37
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• 2012

우리나라 농약평가의 최고 수장인 박재읍 농자재평가과장은 올해로 부임한지 2년 6개월이 지났다. 박과장은 향후 농약평가 부분에 대해서 "선진국은 소비자와 농작업자에 대한 위해성과, 환경생물에 대한 영향평가에 역점을 두고 평가하고 있다."라며 "우리나라도 선진국 수준으로 농약 평가를 하기 위해서 등록시험 기준과 방법 및 위해성 평가기준을 대폭 손질하여 제도정비를 추진할 것이다"라고 밝혔다.

• Agrochemical news magazine
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• v.21 no.3 s.156
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• pp.26-29
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• 2000

• Magazine of the Korean Society of Agricultural Engineers
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• v.39 no.4
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• pp.114-121
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• 1997

In order to provide basic information for the estimation of evapotranspiration in the ponded direct seeding paddy field, both field lysimeter experiment and model prediction were performed to estimate daily ET. Various methods were used to predict daily reference crop ET and crop coefficients. Measure4 mean daily ET during the 1995 growing season varied from 5.9 to 6.1 mm depending on the species, while it varied from 5.1 to 5.5 mm in 1996. Model predicted mean daily ET during the 1995 growing season varied from 3.9 to 4.9 mm depending on the prediction model, while it varied from 3.5 to 4.7 mm in 1996. The smaller ET values both measured and predicted in 1996 were caused by the low values of temperature, sunshine hours, and solar radiation. Crop coefficients varied from 1.20 to 1.50 in 1995 depending on the prediction model, while it varied from 1.10 to 1.47 in 1996. Comparison of the seven reference crop ET prediction methods used in this study shows that the Penman-Monteith method and the FAO-Radiation method gave the lowest ET while the corrected Penman method and the Hargreaves method gave the largest ET. Since crop coefficients vary to a large extent based on the prediction methods, reference crop ET prediction method should be carefully selected in irrigation planning.

• Life and Agrochemicals
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• s.280
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• pp.41-41
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• 2012

농촌진흥청(청장 박현출)은 최근 배 검은별무늬병 방제와 관련하여 농약안전사용기준을 철저히 준수해 줄 것을 당부하며 주의사항을 마련, 행정기관 및 관련 단체에 배포했다. 이는 최근 일부지역 배 재배농기에서 배 검은별무늬병 방제를 위하여 안전사용기준이 정해지지 않은 수도용 살균제 등을 오남용한다는 언론보도에 따른 것으로써, 관련기관 및 단체에 각종 농약안전산용 교육 홍보를 강화해 줄 것을 요청한 것이다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2021.10a
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• pp.205-205
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• 2021

• Agrochemical news magazine
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• v.20 no.1 s.148
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• pp.16-18
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• 1999

• Life and Agrochemicals
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• s.265
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• pp.42-45
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• 2011