The agricultural greenhouse of the invention and the plant cultivation method using the same can cultivate plants economically and efficiently with less energy per crop yield, as it is provided with a CO.sub.2 supply means, a heat-ray shielding means, and a dehumidification and cooling means, the heat-ray shielding means is formed of using a heat-ray reflecting film, and plural through holes are formed in the heat-ray shielding means. The heat-ray reflecting film structure can cultivate plants by the agricultural greenhouse utilizing sunlight economically and efficiently as it has a structure that narrow band-shaped tapes obtained by cutting a multi-layer laminated film made by laminating at least two kinds of resin layers with different refractive indices alternately and having an average transmittance at 80% or more for visible light and an average reflectance at 70% or more for heat-ray is woven or knitted as a warp or a weft.

A photo-selective light spectrum-modifying net for use in citrus fruit production, the net comprising a woven array of parallel and mutually spaced first threads and an array of parallel and mutually spaced second threads, the second threads being inclined to the first threads to define an array of openings between the first and second threads, wherein the first threads are uncolored and composed of a first polymer which is selected from a polymer incorporating a white pigment or dye, a transparent polymer or a translucent polymer, and the second threads are colored red and composed of a second polymer which incorporates a red pigment or dye, the second threads being adapted to transmit, scatter and reflect electromagnetic radiation in the wavelength range of from 640 to 680 nm. Also disclosed is a method of producing citrus fruit using the net.

A netting enclosure kit comprises a skeleton configured to operate in a plurality of configurations between a first, partially expanded configuration and a second, fully expanded configuration, a netting enclosure comprising a plurality of panels configured to be joined together to enclose or hang from the skeleton in each of the plurality of configurations, a first webbing configured to connect to a first portion of the netting enclosure, a second webbing configured to connect to a second portion of the netting enclosure, and a fastener configured to attached to the first webbing and to the second webbing to form an openable and closeable seam.

The present disclosure relates, according to some embodiments, to a method of continuously supplying a harvested biomass comprising a floating aquatic plant species to a processing facility. The method includes cultivating a microcrop (e.g., a floating aquatic plant species) in a bioreactor system, harvesting the microcrop to generate the harvested biomass, and conveying the harvested biomass to a first position of a harvest canal to form a conveyed biomass. A harvest canal may include a trough configured to contain the conveyed biomass in a volume of a medium and a propulsion mechanism configured to impart a motion on the first medium such that the harvested biomass may be transported from the first position to the second position within the harvest canal. The harvest canal may be positioned adjacent to an outer perimeter of bioreactor system and form an infinity loop. The method may further include activating the propulsion mechanism to impart motion on the first medium and propel the harvested biomass from the first position to the second position, and transferring at least a portion of the propelled biomass from the second position of the harvest canal to a processing facility.

A greenhouse screen comprising strips of film material that are interconnected by a yarn system of transverse threads and longitudinal threads by means of a knitting, warp-knitting or weaving process to form a continuous product is provided. At least some of the strips comprise a polyester film having a transparency of at least 93%, said polyester film having at least one base layer B comprising a thermoplastic polyester and a UV stabilizer. The polyester film has a first and a second surface, wherein a permanent anti-fog coating is applied to at least one of the first or second surfaces of the polyester film. The anti-fog coating has a lower refractive index than the base layer B.A process for producing said film is also disclosed.

A greenhouse screen comprising strips of film material that are interconnected by a yarn system of transverse threads and longitudinal threads by means of knitting, warp-knitting or weaving process to form a continuous product is disclosed. At least some of the strips comprise a film material in the form of a single- or multilayer polyester film wherein the film contains at least 1.0 wt.-% SiO.sub.2 and a maximum of 2.5 wt.-% SiO.sub.2, and has a spreading factor of at least 2 and not more than 8. The greenhouse screen as disclosed herein has a reduced flammability and light scattering properties particularly suited for greenhouse applications.

The present invention provides a light transmissive material based on retainment of specific wavelengths, and its insulation composite material and composite carrier thereof, wherein, the light transmissive material is used to retain specific wavelengths of light, so that the wavelength of light of a specific section can pass through the light transmissive material. The invention can be applied to the cultivation of plants, letting the specific section of light wavelengths conform to the range of the light wavelengths, which can regulate plant growth, to enhance the photosynthesis effect of plants, and promote plant growth. Also by adding heat insulation materials, to achieve the effect of summer heat insulation and winter heat preservation, which provides a plant-adapted growth environment, thereby improving crop growth efficiency and increasing the yield, which can help solve the problem of human food.

Described herein is a pillar knitted crop netting comprising widely spaced knitted pillars and crop netting materials comprising a region(s) having such construction. Also described herein are crop nettings comprising yarns defining apertures to form the netting wherein said apertures have a plurality of sides formed by yarn sections and at least one of those yarn sections may be relatively slack when the netting is held taut in lengthwise and widthwise directions. The above nettings may have advantageous hail passage performance.

A netting enclosure kit comprises a skeleton configured to operate in a plurality of configurations between a first, partially expanded configuration and a second, fully expanded configuration, a netting enclosure comprising a plurality of panels configured to be joined together to enclose or hang from the skeleton in each of the plurality of configurations, a first webbing configured to connect to a first portion of the netting enclosure, a second webbing configured to connect to a second portion of the netting enclosure, and a fastener configured to attached to the first webbing and to the second webbing to form an openable and closeable seam.

A greenhouse screen comprising strips of film material that are interconnected by a yarn system of transverse threads and longitudinal threads by means of a knitting, warp-knitting or weaving process to form a continuous product is provided. At least some of the strips comprise a polyester film having a transparency of at least 93%, said polyester film having at least one base layer B comprising a thermoplastic polyester and a UV stabilizer. The polyester film has a first and a second surface, wherein a permanent anti-fog coating is applied to at least one of the first or second surfaces of the polyester film. The anti-fog coating has a lower refractive index than the base layer B.A process for producing said film is also disclosed.