A high density horticulture growing system comprises a plurality of containers in which crops are grown and one or more elevator devices to automatically move the containers between vertically spaced levels of one or more modular racks. Each elevator device comprises a carrier to transport the containers between the vertically spaced levels and a ram to push the containers from the carrier onto one or more longitudinal supports at the vertically spaced levels. A first conveying device moves containers at least horizontally from a crop planting area to each rack and a second conveying device moves containers at least horizontally from each rack to a crop storage area. One or more processors control movement of the containers, watering of the crops, temperature, lighting and other parameters of the system. A plurality of the high density horticulture growing systems are in communication with a centralised data monitoring and collection system for the transmission and reception of data relating to the growing of crops.

Greenhouse comprising a roof construction, wherein the roof construction comprises a slanting upper surface, a first framework that defines a roof opening, and a rectangular ventilation window that covers the roof opening, wherein the ventilation window comprises a panel and a second framework along at least a distal front edge and two parallel side edges of the panel, wherein the greenhouse comprises a netting system to prevent passage of insects through the ventilation passage, wherein the netting system comprises an insect netting that covers the ventilation passage and that is pleated in a bellow configuration to collapse in a stacked manner, and a guiding provision for the insect netting, wherein the guiding provision comprises an elongate guiding bow between the first framework and second framework that extends along the insect netting, wherein the insect netting is slidably connected with the elongate bow.

The present invention is directed to hydroponic systems that can be used in an environment with large daily fluctuations in temperature and to the use of those systems for growing plants.

The present invention is directed to hydroponic systems that can be used in an environment with large daily fluctuations in temperature and to the use of those systems for growing plants.

The present invention is directed to hydroponic systems that can be used in an environment with large daily fluctuations in temperature and to the use of those systems for growing plants.

A tunnel structure (10) is described comprising a plurality of cover support members (14) and a cover material (16) supported by and extending over the cover support members (14), the cover support members (14) being of generally arcuate profile and including an upwardly projecting hump (14c), the humps (14c) of the cover support members (14) being aligned with one another such that the cover material (16) defines a ridge (16a) having sides that are more steeply sloped, in use, than the parts of the cover material (16) adjacent the ridge (16a).

A vertically-oriented module for growing plants is disclosed where the module comprises: a base comprising a housing for one or more auxiliary systems that support the module; a silo positioned on top of the base, the silo comprising a central core; an outer frame surrounding the central core, the outer frame defining a plurality of columns arranged radially around the central core, wherein each column is configured to receive one or more removable panels of plants; and a plurality of lighting units coupled to and arranged radially around the central core such that each lighting unit projects light away from the central core towards a corresponding column in the outer frame

A solar light type glass greenhouse includes a greenhouse unit. The greenhouse unit includes an under-eaves part including north, south, east and west lowersurface parts; and a ceiling part including a sloping roof on a north side, and south, east and west uppersurface parts. The sloping roof slopes by a sloping angle so that a south side is inclined upward when viewed from east. The sloping angle satisfies relations 15<<67, and 63.6-LAT69.6-LAT, where LAT is a latitude of an installation place. The sloping roof includes an eave extending to south beyond the south uppersurface part. A length of the eave is H.sub.Ssin(90-.sub.S)/sin(.sub.S-) or more, where .sub.S is a culmination altitude of the sun in the summer solstice, and H.sub.S is a sum of vertical lengths of the south lowersurface part and the south uppersurface part. The sloping roof includes a glass member having a heat reflective function.

An insect netting for a greenhouse has folded and unfolded conditions, the latter in which the netting forms first and second walls which meet each other at a corner portion. The netting comprises a plurality of bellow sections. Each bellow has a first bellow portion and a second bellow portion The first bellow portion comprises a first strip along the first wall and a second strip along the second wall which are fixed to each other through a first seam at mutual rims of the first and second strips of the first bellow portion which face each other at a corner portion. The second bellow portion is similarly constructed. The first seam and the second seam of the first and second bellow portions have different locations at the corner portion as seen in a direction perpendicular to a plane in which the bellow section lies in the folded condition.

A ventilation valve (1; 101) for ventilation of a space for keeping animals or plants includes an opening-defining circumferential framework (3; 103) for mounting in a wall of that space, and a movable panel (5; 105). The panel (5; 105) is movably attached to the circumferential framework (3; 103) to allow it to be moved relative thereto between a fully closed position, in which substantially no ventilating air can pass between the circumferential framework and the panel, and a fully open position in which substantially the complete opening is available for passage of ventilating air. Provided on the circumferential framework (3; 103) is a profiled edge which in a range between the fully closed position and a predetermined partly opened position provides a non-linear relation between a passage opening for the ventilating air and an associated relative movement position, or opening position, of the panel (5; 105) relative to the circumferential framework (3; 103). Also provided is a ventilation system for ventilating a space for keeping animals or plants, having at least a single specimen of the ventilation valve and having means for carrying out the method steps of periodically determining parameters of inside air present in the space, and adjusting the opening position of the ventilation valve on the basis of the determined parameters of the inside air.