Browse > Article
http://dx.doi.org/10.12791/KSBEC.2017.26.4.283

Effects of an Improved Side Vent on Yield of Oriental Melon and Temperature in Single-span Plastic Greenhouse with Roof Ventilation Fans  

Yu, In Ho (Protected Horticulture Research Institute, NIHHS, RDA)
Cho, Myeong Whan (Protected Horticulture Research Institute, NIHHS, RDA)
Ryu, Hee Ryong (Protected Horticulture Research Institute, NIHHS, RDA)
Shin, Young An (Protected Horticulture Research Institute, NIHHS, RDA)
Publication Information
Journal of Bio-Environment Control / v.26, no.4, 2017 , pp. 283-290 More about this Journal
Abstract
In this study, the method to attach plastic film on the side vent from inside of greenhouse for the entire length was developed as the way to make crops less stressful while uniformly getting outside air into the greenhouse when ventilating using roof ventilation fans at single-span plastic greenhouse for oriental melon in a low-temperature period. The plastic film was installed from ground to 10cm below from the height where side vent is fully opened. In order to verify that the improved side vent can improve greenhouse environment and fruit yield, it was compared with the control plot of conventional side vent. Both greenhouses were not ventilated until February 25th, 2017. Air temperature in both greenhouses exceeded $40^{\circ}C$ in mid February. Therefore, it is judged that the greenhouse should be ventilated from mid February. Air temperature in the control plot exceeded $30^{\circ}C$ from late April. Therefore, it is judged that the plastic film attached to the inside of side vent should be removed in late April, or in early May at the latest. Soil temperature in the treatment plot in the mid Aril exceeded $20^{\circ}C$, which is suitable for growth, while that in the control plot was still below $20^{\circ}C$. Soil temperature in the control plot finally exceeded $20^{\circ}C$ in late April. The consumption of electricity was 47.2 kWh in the treatment plot, and 48.3 kWh in the control plot, which was no significant difference. The marketable yield of oriental melon in the treatment plot was 5,094kg, which was 23.9% more than that in the control plot, 4,113kg. The marketable fruit ratio was 73.5% in the treatment plot, and that in the control plot was 73.9%, which was no significant difference.
Keywords
air inlet; marketable yield; negative pressure; ventilation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Ministry for Agriculture, Food and Rural Affairs(MAFRA). 2016. The status of the greenhouse and production records for vegetable crops in 2015. ed. MAFRA, Sejong, Korea (in Korean).
2 Nam, S.W. and Y.S. Kim. 2011. Analysis on the ventilation performance of single-span tomato greenhouse with roof windows. J. Bio-Env. Con. 20(2):78-82 (in Korean).
3 Nam, S.W., Y.S. Kim, G.H. Ko, and I.M. Sung. 2012. Analysis on the installation criteria and ventilation effect for round root windows in single-span plastic greenhouses. CNU J. Agr. Sci. 39(2):271-277 (Korean).
4 Rural Development Administration(RDA). 2001. Standard farming manual-oriental melon. ed. RDA, Jeonju, Korea (in Korean).
5 Saito, T. 1983. Basic physiology and practical technique of tomato. 4th ed. Rural Culture Association, Tokyo, Japan.
6 Yeo, K.H., I.H. Yu, G.L. Choi, S.C. Lee, J.H. Lee, K.S. Park, J.S. Lee, and Khoshimkhujaev Bekhzod. 2016. Effects of modified installation methods of roof ventilation devices in the single-span plastic greenhouses on yield and fruit quality of oriental melon. Protected Horticulture and Plant Factory. 25(4):334-342 (in Korean).   DOI
7 Yu, I.H., M.W. Cho, H.R. Ryu, and Y.A. Shin. 2017. Development of technology for improving the utilization efficiency of roof ventilation fan in single-span plastic greenhouse during low temperature season. RDA Annual report. ed. RDA, Jeonju, Korea (in Korean).
8 Kang, K.Y., H.C. Rhee, and Y.H. Choi. 2006. Physiology and culture of tomato. Donga Press, Busan, Korea.
9 Lee, J.E., Y.S. Shin, H.W. Do, H.R. Sohn, J.D. Cheung, and M.K. Kim. 2015. Changing environment of plastic film house by light interruption materials in korean melon during summertime. Kor. J. Hort. Sci. Thchnol. 33(Suppl. II):102 (in Korean).