The present techniques generally concern methods and systems for managing undesired effects in an electrical grid, which may include rapid voltage change(s) and/or flicker(s). The system includes an event detection module operatively connected to a plurality of horticultural light sources. The event detection module is configured to determine a power usage of the horticultural light sources, based on illumination conditions, detect an event affecting the illumination conditions, determine whether the event causes the undesired effects in the electrical grid, based on an evolution of the power usage of the horticultural light sources in response to the event, and send illumination instructions to the horticultural light sources to adjust the power usage of the horticultural light sources, if the event causes the undesired effects.

The present techniques generally concern methods and systems for monitoring and managing reactive power from horticultural lighting sources in an electrical grid. The techniques provided herein include determining or predicting distortive effects produced by the horticultural lighting sources, evaluating a power factor of the horticultural light sources, and based on a target power factor, adjusting the power factor of the horticultural light sources. The techniques described herein allow for an optimization of the power factor of the horticultural lighting sources in order to reduce, mitigate or eliminate the negative effects generally associated with the operation of horticultural light sources on the electrical grid.

The invention discloses a method of rapid generation-adding breeding of rice in the technical field of rice breeding, including soaking seeds of the rice, germination, seedlings cultivation, managing and regulating of the rice at the growth stage, and harvesting the rice. The managing and regulating the rice at the growth stage includes dynamic light quality and photoperiod control in vegetative growth period, heading period and pustulation period; growth period involves light environment regulation with the ratio of red light:blue light:white light of 0.8-1:0.8-1:1.0, photoperiod of 16-18 h; heading period involves light environment regulation with the ratio of red light:blue light:white light of 1-2:0.5-1:1, photoperiod of 12-13.5 h; and pustulation period includes light environment regulation with the ratio of red light:blue light:white light of 1-2:1:1, photoperiod of 16-18 h.

A portable and compact assembly for providing a conditioned environment for a domestic plant both indoor and outdoor. The assembly includes a frame and a platform rotatably coupled to the frame. A plant can be placed on the platform and rotates with the platform. The assembly further includes grow lights mounted to the frame, fans mounted to the frame, and speakers. The conditioned environment can include combined exposure to grow light, sounds outputted by the speakers, and breeze generated by the fans.

The invention relates to the field of soil and ionitoponic (ionitoponics) automated cultivation of plants having various morphological structures and can be applied in everyday life. The technical result to be achieved by the invention is to ensure a balanced growth and development of plants without human intervention. The essence of the invention is that a plant cultivation device comprises a plant cultivation chamber and the following controller-operated modules: a lighting module, a ventilation module, a substrate humidity monitoring module, an irrigation module, a module for monitoring a water level in a reservoir, and a plant growth stage monitoring module. The device further comprises: a controller-operated plant cultivation module comprising a container and a substrate provided with all necessary micro—, macroelements and microorganisms to achieve the best plant growth; a substrate humidity monitoring module; and a means for differentiating air flows.

A grow light includes a plurality of cool white LEDs, a plurality of warm white LEDs, and a driver electrically coupled to the cool white LEDs and the warm white LEDs. An intensity level and spectral composition of the radiant energy emitted by the grow light may be tuned or configured by varying a ratio of the quantity of cool white LEDs to the quantity of warm white LEDs, by varying a spatial arrangement among the cool white LEDs and the warm white LEDs, or by varying a level of current provided to some or all of the cool white LEDs and the warm white LEDs.

A method for treating pest infestation of crops includes withholding all light from the crops and, during the withholding, applying a burst of ultraviolet light to the crops. A method for reducing pests includes turning off all lighting arranged to apply growth light to the crops, applying a burst of ultraviolet light to the crops and turning on the lighting arranged to apply growth light to the crops. A system for treating pest infestation of crops includes a plurality of ultraviolet light sources and a controller configured to energize the ultraviolet light sources to apply a burst of ultraviolet light to the crops.

A Vertical-Hive Green Box (or V-Hive Green Box) is a modular cultivation system utilized in a modular Vertical Farm or Plant Factory, as well as a warehouse-type or greenhouse-type of vertical farm or plant factory. The V-Hive Green Box includes growing boards, lighting boards, and an irrigation system arranged within a frame structure to maximize the quantity of crops that can be grown within an available volume of space in a modular Vertical Farm unit, warehouse or greenhouse per unit time. The V-Hive Green Box can also include aquaculture boards that can be used for aquaculture of aquatic fish and plants.

A plant cultivation method includes the steps of: applying supplementary light treatment to a selected plant with UVA, measuring a maximum quantum yield of the selected plant; and determining a cultivation step of the plant according to the measured maximum quantum yield.

A plant cultivation device includes a light source unit having a first light source emitting stimulation light in a UV region toward a plant and a second light source emitting background light toward the plant, the background light having a different peak wavelength than the stimulation light. The second light source emits the background light during a light period and stops emission of the background light during a dark period. In addition, the first light source emits the stimulation light for a certain period of time during the light period. Further, a cumulative amount of the stimulation light emitted from the first light source is 0.036 J or more per day.