Various implementations disclosed herein includes a method for operating lighting fixtures in horticultural applications. The method may include receiving a user input of a desired irradiance for a first color channel of one or more lighting fixtures that irradiates a plant bed, in which each of the one or more lighting fixtures comprises at least one light emitting diode (LED) array, determining, for each of the one or more lighting fixtures, a PWM setting of the first color channel such that each of the one or more lighting fixtures irradiate the plant bed at the desired irradiance based on calibration data stored in each of the one or more lighting fixtures, and applying, to each of the one or more lighting fixtures, the determined PWM setting of the first color channel.

Embodiments of the present disclosure provide systems, apparatuses and methods for synchronous communication and control of LED lights and sensors in an LED light array containing two or more LED lights. Through the use of a master clock within a gateway and/or a master controller that is in communication with LED lights in an array that is in a facility, such as in a greenhouse, hot house, poultry egg production facility, a hospital, dairy production or other lighting facilities, the gateway and/or master controller is capable of synchronizing the emission of light or photons from an LED light array by generating a master signal that contains commands and time from a master clock within the signal that is transmitted to each of the LED lights within an array.

Plant cultivation for increasing the phytochemical content of a Labiatae plant is provided. The plant cultivation includes cultivating the Labiatae plant in a visible light environment having a dark period and a light period during which the Labiatae plant is exposed to visible light in an alternate manner, and performing treatment with UVB radiation during the light period for at least one day before harvesting. A cumulative dose of the UVB radiation may range from 0.54 J/m.sup.2 to 4.32 kJ/m.sup.2.

A system for estimating a harvesting time in a plant growing environment is configured to determine a light setting used by one or more light sources (11) to illuminate a section (45) of the plant growing environment with horticulture grow light. The light setting comprises at least a color component associated with the section of the plant growing environment. The system is further configured to obtain light measurement information from one or more color sensors (21) when the one or more color sensors are co-located with the one or more light sources. The system is configured to estimate a harvesting time for the section of the plant growing environment based on the light measurement information, an intensity of the color component in the light setting and a cultivation temperature protocol for the section of the plant growing environment. The cultivation temperature protocol comprises one or more assumed cultivation temperatures.

An assimilation lamp device (101; 800) for stimulating plant and crop growth comprises: a central lamp unit (10), comprising a body (14) and one or more LEDs (12) mounted to the bottom surface of the body, wherein the body acts as a heat sink for the heat generated by the LEDs. The device further comprises air stream generating means (42) for generating a downward air stream (43; 341), and heat transfer and exchange means for transferring heat from the body to the air stream, so that heat from the LEDs is used to increase the temperature of said downward air stream and is eventually used to warm the environment of the plants. A device controller (850) has a set point input (859) and generates control signals for the LEDs and the air stream generating means in conformity with an input signal received at its set point input.

Activation of a far-red light device with a far-red light frequency that promotes the conversion of inactive Pfr to active Pr in short-day plants prior to a dark period.

A plant cultivation method including irradiating a plant with first irradiation light including blue light and second irradiation light including red light. A first irradiation period T1 during which the first irradiation light is emitted and a second irradiation period T2 during which the second irradiation light is emitted are alternately provided in time series. The irradiation timings of the first irradiation light and the second irradiation light are determined by using a tide-generating force as an index.

A storage racking system for plant products can be capable of automated rotation and curing of dried cannabis and hemp flowers in sealed containers, which can maintain relative humidity along with a UV light and oxygen deficient environment to reduce degradation. The storage containers can be positioned horizontally to maintain a connection to the inert gas connection and allow for daily rotation in either direction. Each storage container can have a lid and a humidity pack. The lid can have a pressure relief valve that can exchange the gaseous atmosphere from the storage container with an inert gas through a check valve connection. The humidity pack can maintain the relative humidity in the storage container at about 58% to 62% during the curing and storage stages.

In a device a crop is cultivated in an at least substantially daylight-free environment, wherein the crop is exposed in an at least substantially fully conditioned cultivation space (10) to actinic artificial light from an array of artificial light sources (30) present in the cultivation space. During a cultivation cycle a power output of the artificial light sources (30) is adapted to an energy absorption of a part of the crop (50) illuminated thereby such that the crop close to each of the array of artificial light sources is subject to an at least substantially constant and at least substantially mutually equal vapour deficit.

A height-adjustable botanical lighting system and a method of operating the same. The height-adjustable botanical lighting system comprises a height adjustment assembly, one or more light assemblies, and one or more sensors. The light assemblies depend from the height adjustment assembly. The sensors are adjustably coupled to the light assemblies. The sensors cause the height adjustment assembly to raise the light assemblies in response to one or more generally upward advancing plants interfering with a sensor field of the sensors.