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 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.

An annular LED grow light is disclosed, which comprises a radiator, a light source board, and a power supply box. The light source board is composed of a PCB light board and a plurality of LED lamp beads, wherein the LED lamp beads are arranged on the PCB light board in an annular array about a center. The beneficial effects of the present disclosure are: the photosynthetic photon flux density (PPFD) is distributed more evenly after the LED lamp beads are arranged in an annular array about the center, thus the effective irradiated area is larger, and the cost has been saved.

The LED grow-light system includes one or more grow-light canopies with linear LED light bars to provide upward and/or downward lighting in a central illumination area. The LED grow-light system or grow-light canopies are preferably constructed using T-slot interconnects that lock into T-channels of the T-slot bars and/or T-slot light bars and the LED grow-light systems are housed in a controlled modular grow-light containers that include sky-light structures and/or light tubes that allow the controlled modular grow containers to be stacked or placed next to each other and minimize the footprint for growing plants.

A magnetic stimulation device having planar coil structure is disclosed. It contains a power supply module, a current control module, a plurality of planar coil modules and a plurality of electrical connection modules. In the planar coil module of the present invention, the coil structure has a flat and thin design and can be modularized. Compared with the existing magnetic stimulation devices, the overall structure of the present invention is light, thin, short, convenient to carry and use, and can be installed on clothing or built in a mobile device to provide a convenient magnetic stimulation treatment.

A multifunctional light source assembly and a multifunctional desk lamp are disclosed. The multifunctional desk lamp includes a base assembly, a lamp head assembly, and a lamp arm assembly; one end of the lamp arm assembly is connected with the base assembly, and the other end is connected with and supports the lamp head assembly; the lamp head assembly is internally provided with the multifunctional light source assembly, the multifunctional light source assembly includes an illumination LED chip, a plant grow light LED chip and an ultraviolet LED chip. The illumination chip, the plant grow light chip and the ultraviolet chip are respectively connected to a controller, which respectively controls the three chips, through the on and off of currents, so that functions such as illumination for reading and writing, sterilization, plant growth assistance can be achieved.

The invention relates to a plough module (1) for interchangeable mounting on a base frame of a plough device for ploughing a ground, wherein the plough module (1) comprises: a rotatable first cutting element (102) which is designed as a coulter disc and has a revolving first cutting edge (103), wherein the first cutting element (102) is designed in such a manner that a lateral region of a soil ridge in the ground can be cut by moving the plough module (1) on the ground along a ploughing direction, a second, flat cutting element (105) having a second cutting edge (106), wherein the second cutting element (105) is designed in such a manner that a ground region of a soil ridge in the ground can be cut by moving the plough module (1) on the ground along a ploughing direction, characterized in that the plough module (1) is designed as a ready-mounted unit, in which the second cutting element (105) follows, and comprising a first support structure (4), on which the first cutting element (102) is arranged, a second support structure (5), on which the second cutting element (105) is arranged and which is connected to the first support structure (4), and that the first support structure (4) has means for detachable attachment to a base frame (2) of a plough device (3), wherein actuators (26.1, 26.2) are provided for adjusting the angle about two defined axes of the first cutting element (102) and an actuator (26.3) is provided for adjusting the angle about one axis of the cutting element (105).

A multi-source ground-to-air heat transfer system is configured to store thermal energy during a cooling/dehumidifcation mode of operation for future use during a heating mode of operation. The multi-source ground-to-air heat transfer system utilizes a ground loop that is configured under an enclosure, such as a greenhouse, and is in thermal communication with a thermal reservoir medium to conduct and store heat. A thermal exchange fluid is pumped through the ground loop and ground heat exchanger and may receive heat from a condenser during a cooling/dehumidification mode of operation and may liberate heat to the evaporator during a heating mode. The enclosure air may receive heat from the heat pump during a heating mode and may liberate heat to the evaporator during a cooling/dehumidification mode. The heat exchange system may employ a heat pump having a reversing valve to change the mode of operation.

An apparatus for controlling plant pests includes a portable case and a light source held in the case. The light source emits ultraviolet light in a predetermined direction. The case includes an installation assembly configured to be installed in a culture medium of the plant so that the predetermined direction is upward. An optical component that removes a wavelength component larger than 340 nm from the ultraviolet light emitted by the light source may also be provided.