Top furling automated retractable greenhouse cover is a retractable cover for a greenhouse that is mounted on top of the greenhouse. Top furling automated retractable greenhouse cover comprises: a spine clamp, a left furling cover assembly, a right furling cover assembly, a hinge pin assembly, and an electrical control box. Left and right furling assemblies each comprise a curtain or cover, a furling rod, a furling motor, and a support arm. Electrical control box sends electronic signals to cause left and right covers or curtains to furl above the greenhouse when retracted and to unfurl down to the ground when extended to cover the greenhouse. The top-mounted design allows efficient use of gravity to apply tension to the furled rolls.

A polytunnel structure is described having a plurality of cover support members supported upon respective pairs of legs, a cover member supported by the cover support members, an edge of the cover member being secured to a rotatable beam, and an anchor rope, strap or the like extending over the cover member to anchor the cover member in position, wherein the cover support members are each shaped to define a step between a first section and a second section, wherein when the rotatable beam is supported upon the second section, the anchor rope, strap or the like provides a reduced resistance to movement thereof.

A system and method are provided for the indoor and outdoor cultivation of larger fruiting plants. Improved lighting techniques, plant layouts, and space utilization are provided to improve the quality and yields of harvested products from large fruiting plants on a per plant and unit area basis. The uniformity of artificial light is improved from the top to the bottom of tall plants and vines, and overcome the lack of light penetration through the canopy of the plant by changing the orientation of lights from a horizontal to vertical alignment along the side of the plant verses over the top of the canopy, as well as increasing the number of light sources to reduce shading. Plants are trained to grow in specific directions and orientations in a grid system to enable an optimal and uniform light distribution and to improve space utilization in a given growing area.

The invention relates to biaxially oriented, UV-stabilized polyester films incorporating silicon dioxide particles as light-scattering particles and a UV stabilizer; a process for producing the same and to use thereof in greenhouse blinds. The invention particularly relates to single- or multilayer polyester film with transparency from 70 to 92 %, where: the film includes at least 1.0% by weight to at most 2.5% by weight of SiO.sub.2, with the d.sub.50 value of these SiO.sub.2 particles ranging from 3 to 9 μm, the SV value of the film is at least 700, the scattering factor SF of the film is at least 2 and not more than 8, the haze of the film is from 60 to 95%, and the clarity of the film is from 15 to 40%; and all of the external layers comprise at least 0.3 % by weight of an organic UV stabilizer.

A method of making a solar module comprising forming an arcuate frame and adhesively bonding a solar cell formed of a flexible sheet of a thin film organic photovoltaic solar material to the frame or to a flexible backing attachable to the frame to at least partially cover an upwardly facing part of the frame. The invention also extends to the module. The module may be deployable into a deployed configuration. It may be used over a poly-tunnel, or on a roof, or in other applications.

A resin composition contains an ethylene-vinyl alcohol copolymer (A) in which an ethylene unit content is from 10 to 60 mol %, a hindered amine-based compound (B) having a 2,2,6,6-tetraalkylpiperidine ring structure and having an alkoxy group bonded to a nitrogen atom in the structure, and a hindered phenol-based compound (C) having an ester bond or an amide bond. The resin composition contains 0.1 to 5 parts by mass of the hindered amine-based compound (B) and 0.2 to 5 parts by mass of the hindered phenol-based compound (C) with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A), and a mass ratio (C)/(B) is from 0.2 to 3.6.

A system and method are provided for the indoor and outdoor cultivation of larger fruiting plants. Improved lighting techniques, plant layouts, and space utilization are provided to improve the quality and yields of harvested products from large fruiting plants on a per plant and unit area basis. The uniformity of artificial light is improved from the top to the bottom of tall plants and vines, and overcome the lack of light penetration through the canopy of the plant by changing the orientation of lights from a horizontal to vertical alignment along the side of the plant verses over the top of the canopy, as well as increasing the number of light sources to reduce shading. Plants are trained to grow in specific directions and orientations in a grid system to enable an optimal and uniform light distribution and to improve space utilization in a given growing area.

A greenhouse has a roof including a plurality of substantially parallel crossbeams, at least two longitudinal sections which are mounted to the crossbeams and extend at a distance from each other in transverse direction of the crossbeams, a transparent foil which is mounted to the longitudinal sections at respective foil attachment locations thereof so as to form a cover between the longitudinal sections. The roof also includes a displacement mechanism for displacing one of the longitudinal sections with respect to the other between a non-foil-stretching position and a foil-stretching position. The distance between the respective foil attachment locations is larger in the foil-stretching position than in the non-foil-stretching position. The displacement mechanism can be operated and is lockable at an upper side of the roof.

Self-supporting inflatable grow tents include a base surface, a top surface, and a plurality of sidewalls. The sidewalls include an integrated lighting system. The inflatable grow tents include a plurality of support members configured to structurally support the grow tent when inflated, and an air circulation assembly including an air blower and a carbon filter. The grow tents include a lighting system configured to provide a standard deviation of average photosynthetic active radiation that is from about 2 to about 8 within the grow tent when the lighting system is active.

Arrangement of a closed greenhouse (10) with optimised temperature control, including at least one module (10-1 to 10-n), comprising a framework and a peripheral film so as to constitute an enclosed space, comprising a front wall (16), a rear wall (18) and two side walls, left (20) and right (22) as well as a roof (24) with ridge, as well as at least one access opening with an airlock, at least one evaporating panel (26) for water diffusion, a water supply circuit (32) and at least one interior air extractor (34), characterized in that said at least one interior air extractor (34) is disposed in the immediate vicinity of the ridge of the roof (24)