Laser light is coupled to optical fibers arranged in a sheet, which may be in the form of netting, mesh or fabric. Scattering centers or bends in the optical fibers allow the coupled light to escape from the sides of the fibers. Depending on the selection of wavelengths for the lasers, the resulting luminous sheet may be used for illumination of crops grown in vertical farms. The laser wavelengths excite plant photopigments for predetermined physiological responses, and the light source intensities may be temporally modulated to maximize photosynthesis and control photomorphogenesis responses. Each laser may be independently controlled, and at least one laser may emit ultraviolet-C radiation. The luminous sheet may be used for purification of air flowing through an air duct.

A plant growing lamp includes a lighting unit and a hanging unit. The lighting unit includes a control box and a sliding part, and the hanging unit includes connection lines and a rope ratchets. Cables such as the rope ratchets and the connection lines can be roughly pulled straightly and fully by weight of the lighting unit. The rope ratchets can be pulled to adjust a distance between the lighting unit and the hanger, so as to change an interval between a lamp of the lighting unit and the plants under the lighting unit, thereby appropriately adjusting light intensity for plant growth to prevent from burning the plants.

Disclosed herein are control systems and methods for managing and controlling the localized environment for growing plants in an indoor organic environment. The methods and systems provide for optimizing the climate at the localized level beneath the plant canopy to ensure the climate promotes plant growth. The control system controls the environment by monitoring, adjusting, and managing various systems within the indoor growing environment such as an air circulation system, a temperature control system, an irrigation system, a nutrition delivery system, a lighting system, and a sensor system, either individually or in various combinations.

A lighting system includes two or more lighting fixtures, each comprising a housing, at least one light source mechanically supported by the housing, at least one pipe thermally coupled to the housing to carry a fluid coolant, an AC power port, and at least one network communications port. The AC power ports of respective lighting fixtures are coupled together with a plurality of industrial power cables without using one or more conduits for the plurality of industrial power cables. The network communications ports of the respective lighting fixtures are coupled together with a plurality of waterproof network communications cables. In one example, a lighting system kit comprises two or more lighting fixtures having an AC power port comprising an industrial type connector. The kit further comprises multiple industrial power cables and one or more industrial drop tee cables.

A lighting device is presented. The lighting device includes an LED light source; and a red/far-red emitting phosphor radiationally coupled to the LED light source, wherein the red/far-red emitting phosphor comprises a host material activated with an activator ion, and wherein the activator ion comprises at least one of Sm.sup.2+ and Mn.sup.2+. Numerous other aspects are provided.

A photobioreactor system includes a growing tower tray assembly configured to utilize laminar flow to harvest a plant; a nursery subsystem configured to feed inoculum to the growing tower tray assembly; and a nutrient feeding subsystem configured to feed nutrient media to the growing tower tray assembly.

The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 nmol/sec/m.sup.2 over a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.

The invention provides a horticulture lighting arrangement (1000), comprising (i) a lighting system (100) configured to provide horticulture light (101) having a controllable spectral power distribution, and (ii) a control system (300) configured to control the spectral power distribution of the horticulture light (101); wherein in an operational mode of the horticulture lighting arrangement (1000) the horticulture lighting arrangement (1000) is configured to provide the horticulture light (101) according to an on-off schedule wherein consecutively an on-period (D) and an off-period (N) are applied, wherein:—the horticulture light (101) comprises one or more of first horticulture light (1011) comprising a wavelength selected from the range of 400-600 nm, red light (1012) comprising a wavelength selected from the range of 600-700 nm, and far-red light (1013) comprising a wavelength selected from the range of 700-800 mn;—the on-period (D) lasts in in the range of 12-20 hours and the off-period (N) lasts in the range of 4-12 hours, wherein the on-period (D) comprises an end-of-day period (EOD) at the end of the on-period (D), wherein the end-of-day period (EOD) lasts in the range of 0.5-4 hours;—wherein during a substantial of the on-period (D) before the end-of-day period (EOD) a R/Fr ratio, defined as a ratio I600-700 nm/I700-800 nm of red light (1012) and far-red light (1013), is selected from the range of 4-20, and during a substantial part of the end-of-day period (EOD) the R/Fr ratio is selected from the range of 0.1-4.

Provided is an artificial light source setting method and an artificial light source setting system for controlling secondary metabolites of plant and provide an artificial light source setting method and an artificial light source setting system for controlling secondary metabolites of plant, which predict content of the secondary metabolites of plant by measuring a light interception amount by using a cultivation environment of plant, a three-dimensional structure model of plant, and optical simulation and set an artificial light source according thereto.

System, methods, and devices may control air flow, temperature, relative humidity, substrate temperature, substrate moisture, carbon dioxide concentration, photoperiod, irrigation, light intensity, spectrum, and vapor pressure deficit. The system may comprise water and air pumps, sensors, air and water distribution apparatus, lights, heaters, foggers, sensors, and electronic system control dedicated to control the environment on individual or multiple growing platforms. The present disclosure provides the ability to provide microclimate control to optimize the environment at the plant or shelf level to optimize plant yields and production resources. The present disclosure may utilize an open or closed plant production configuration depending on the desired plant outcome and plant species.