Differences in paprika productivity between single and sealed shading greenhouse

The test greenhouse was single shading greenhouse and sealed shading greenhouse, and the production of paprika during the high temperature period from July to August was compared according to the cultivation environment of the two greenhouses.
Both greenhouses were operated to be cooled at 28°C or higher. single shading greenhouse using the top of screen was closed at a light intensity of 800 W or higher. sealed shading greenhouse is set to close 80% of the top of the screen and 100% of the side screen at 800 W or higher.
As a result of monitoring the high-temperature environment in July and August, the daily average temperature of the single shading greenhouse was operated at 28°C in July and 27.5°C in August, and sealed shading greenhouse was operated at 25.6°C in July and 25.9°C in August.
Among the harvested paprika dry weight, it was observed that the sealed shading greenhouse was 15.1 g and single shading greenhouse was 11.4 g.
In other words, sealed shading greenhouse increased by 32% dry weight compared to single shading.
Finally, paprika produced during the high temperature for two months in July and August was converted into ha. 43.5 t were produced in the case of sealed shading greenhouse and 35.4 t in the case of single shading greenhouse.

International Symposium on Models for Plant Growth, Environments, Farm Management in Orchards and Protected Cultivation – HorchiModel2023

H.S. Lee, H.J. Kim, G.Y. Yun, S.H. Jung, J.H. Kim, Y.J. Cho, H.S. Cho, J.M. Jung, H.G. Kim

shading method, paprika, productivity, facility horticulture

https://doi.org/10.17660/ActaHortic.2025.1425.27