Results 241 to 250 of about 648,893 (289)

Efficiency of Plastic Nets for Greenhouse Shading

2023
Agricultural production is influenced by extreme weather phenomena, accompanied by major global changes, such as the increasingly sudden and frequent appearance of new types of insects, the transformation of eating habits (e.g., “smart/super foods”), etc.
Roberto Puglisi, Marco Lippolis, Giuseppe Starace, Paolo Arrigoni, Pietro Picuno   +4 more
openaire   +2 more sources

Quantifying greenhouse gas emissions mitigation potential in China's agricultural plastic greenhouses

Science of The Total Environment
To promote sustainable intensification and provide guidance for decisionmakers, we must understand the potential for mitigating greenhouse gas emissions in greenhouse cultivation. Therefore, this study aimed to evaluate the greenhouse gas emission mitigation potential of agricultural plastic greenhouses in China using a combination of life cycle ...
Xiaoyu, Liu, Liangjie, Xin, Xiubin, Li
openaire   +2 more sources

Wind loads on film plastic greenhouses

Journal of Wind Engineering and Industrial Aerodynamics, 1983
Abstract Full-scale measurements of the surface pressures on film plastic clad greenhouses have been made under natural wind conditions. The structures, which are of curved arch construction, are representative of commercial greenhouses in the United Kingdom and include single and multi-span buildings.
R.P. Hoxey, G.M. Richardson
openaire   +1 more source

Channelled plastic for greenhouse and skylight use

Solar Energy, 1981
Abstract Transparent, channelled, plastic sheets lend themselves to solar energy applications in which an interior space needs light but limited amounts of heat. We discuss the transmission of solar energy through such sheets with and without circulating water or water with dissolved ions.
openaire   +1 more source

Research report on plastic greenhouses

2019
Objectives of this study are to develop improved construction methods for plastic greenhouses and to study plant growth rate and yield of vegetables when grown in glass vs plastic greenhouses.
Massey, P.H., McNeil, Marshall, Gray, R.W.   +2 more
openaire   +1 more source

Climate management for plastic greenhouses

1992
Compte rendu de débats sur la gestion du climat sous serres plastiques : lumière, luminosité, hygrométrie, température.
Feuilloley, P., Gratraud, J., Printz, P.
openaire   +1 more source

DETERMINATION OF THERMAL TRANSPARENCY OF PLASTICS MATERIAL FOR COVERING GREENHOUSES

Acta Horticulturae, 1990
La consommation thermique d'une serre pour son chauffage dépend essentiellement de sa couverture et de son comportement sous un climat extérieur donné. De nombreux films plastiques aux propriétés mal connues sont apparus sur le marché. Il devient alors nécessaire de caractériser les matériaux de couverture par un coefficient de déperdition, de déceler ...
Feuilloley, P., Guillaume, S., Issanchou, Gustave, Davenel, A.   +3 more
openaire   +2 more sources

WATER VAPOUR TRANSFERS AND DEHUMIDIFICATION IN A INFLATABLE PLASTIC GREENHOUSE

Acta Horticulturae, 1989
International ...
Boulard, Thierry, Baille, Alain, Lagier, Jacques, Mermier, M.   +3 more
openaire   +2 more sources

Natural ventilation of plastics tunnel greenhouses in the Mediterranean

1994
The use of plastics greenhouses is developing rapidly in the south of France. The local climate gives rise to a number of problems and particularly that of heating up during the summer. Good ventilation helps in the air circulation which is essential for the plants and reduces the wide temperature variations thereby increasing the length of time in the
Feuilloley, P., Mekikdjian, C., Lagier, Jacques   +2 more
openaire   +2 more sources

EFFECTS OF AGROCHEMICALS ON THE MECHANICAL PROPERTIES OF PLASTIC FILMS FOR GREENHOUSE COVERING

Acta Horticulturae, 2008
Greenhouse plastic films are subjected to degradation due to their exposure to solar radiation and to agrochemicals used during cultivation. This results in a reduction of life, which ranges from some months to 3–4 years relative to the thickness of the plastic film and to the degree of stabilisation. A research was carried out in order to evaluate the
G. VOX, E. SCHETTINI, L. STEFANI, MODESTI, MICHELE, UGEL, ELISABETTA   +4 more
openaire   +4 more sources