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פותח על ידי קלירמאש פתרונות בע"מ -
Micrometeorological characterisation in a screenhouse
Year:
2003
Source of publication :
Acta Horticulturae
Authors :
טייטל, מאיר
;
.
טנאי, יוסף
;
.
כהן, שבתאי
;
.
מולר, מרקוס
;
.
Volume :
614
Co-Authors:
Möller, M., Institute of Soil, Water and Environmental Sciences Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Tanny, J., Institute of Soil, Water and Environmental Sciences Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Cohen, S., Institute of Soil, Water and Environmental Sciences Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Teitel, M., Institute of Agricultural Engineering Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Facilitators :
From page:
445
To page:
451
(
Total pages:
7
)
Abstract:
In recent years insect-exclusion screenhouses have become popular among growers because they reduce the need for pesticide application, cost much less than greenhouses and are believed to have a minor effect on the microclimate of the crop. Although the total area of screenhouses around the world is steadily increasing, there is very little data on the microclimate in such structures. The present study is focused on measurements of temperature and humidity profiles, radiation and wind speed in and around a 50-mesh commercial screenhouse for pepper cultivation. We investigated the relationship between the diurnal courses of internal temperature and humidity, their vertical gradients and ambient conditions. It was revealed that the upper region of the screenhouse interacts strongly with the outside. Radiation measurements showed that radiation load under the screen was reduced to almost half of its external value. The results of the wind measurements made with a 3D sonic anemometer indicate that the wind speed at the upper region of the screenhouse, between the top of the plants and the roof, is about 25% of the ambient. An internal counter-flow opposite to the external northwestern wind was observed along the western half of the screenhouse.
Note:
Related Files :
humidity
Insect-proof screens
microclimate
Radiation
shading
Sweet pepper
temperature
wind
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
19031
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:26
Scientific Publication
Micrometeorological characterisation in a screenhouse
614
Möller, M., Institute of Soil, Water and Environmental Sciences Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Tanny, J., Institute of Soil, Water and Environmental Sciences Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Cohen, S., Institute of Soil, Water and Environmental Sciences Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Teitel, M., Institute of Agricultural Engineering Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan 50250, Israel
Micrometeorological characterisation in a screenhouse
In recent years insect-exclusion screenhouses have become popular among growers because they reduce the need for pesticide application, cost much less than greenhouses and are believed to have a minor effect on the microclimate of the crop. Although the total area of screenhouses around the world is steadily increasing, there is very little data on the microclimate in such structures. The present study is focused on measurements of temperature and humidity profiles, radiation and wind speed in and around a 50-mesh commercial screenhouse for pepper cultivation. We investigated the relationship between the diurnal courses of internal temperature and humidity, their vertical gradients and ambient conditions. It was revealed that the upper region of the screenhouse interacts strongly with the outside. Radiation measurements showed that radiation load under the screen was reduced to almost half of its external value. The results of the wind measurements made with a 3D sonic anemometer indicate that the wind speed at the upper region of the screenhouse, between the top of the plants and the roof, is about 25% of the ambient. An internal counter-flow opposite to the external northwestern wind was observed along the western half of the screenhouse.
Scientific Publication
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