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 self-watering portable greenhouse is disclosed having a tubular frame constructed of light-weight, water-tight tubular members which serves as a combined structural skeleton for external walls, a platform for plant containers, and a reservoir for liquid nutrients provided to plants in plant containers by self-watering through a wick connecting the reservoir and the plant containers.

A greenhouse screen 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, wherein at least some of the strips comprise a film material in the form of a single- or multilayer polyester film is disclosed. The film material has a transparency of at least 93.5% and is provided with at least a first anti-reflective coating or layer on a first side of the film material.

An indoor plant-growing system is an apparatus that includes a housing, at least one trellis, a reflective foil, at least one panel light, and a plurality of strip lights. The housing contains the at least one trellis, the at least one panel light, and the plurality of strip lights. The housing maintains an environment to grow a variety of plants, preferably, vine-type plants. The housing includes a growing chamber and a nutrient reservoir. The growing chamber houses variety of plants, and the nutrient reservoir supplies the growing chamber with a water supply and nutrients. The nutrient reservoir maintained preferably with fish in addition to at least one environmental sensor and at lease one aerator. The at least one panel light and the plurality of strip lights provide thorough lighting needed by the variety of plants. The reflective foil reflects the light to ensure lighting within a fully grown vine plant.

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.

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.

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.

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.

An indoor plant-growing system is an apparatus that includes a housing, at least one trellis, a reflective foil, at least one panel light, and a plurality of strip lights. The housing contains the at least one trellis, the at least one panel light, and the plurality of strip lights. The housing maintains an environment to grow a variety of plants, preferably, vine-type plants. The housing includes a growing chamber and a nutrient reservoir. The growing chamber houses variety of plants, and the nutrient reservoir supplies the growing chamber with a water supply and nutrients. The nutrient reservoir maintained preferably with fish in addition to at least one environmental sensor and at lease one aerator. The at least one panel light and the plurality of strip lights provide thorough lighting needed by the variety of plants. The reflective foil reflects the light to ensure lighting withing a fully grown vine plant.

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.