When growing cannabis plants indoors, a proper lighting system is another important factor to consider. With the invention of LED lights, these are considered to be the best hydroponic light sources, allowing hemp to produce more buds and flowers at a high growth rate. Compared with standard halogen lamps, high pressure sodium lamps (HPS), fluorescent lamps or metal halide (MH) plant lights, hydroponic LED plant lights are more energy-efficient. Unlike traditional plant growth lights, LED plant growth lights can be specially adjusted according to the specific spectrum required for a specific growth stage. Cannabis is very sensitive to light, and light intensity, color and frequency need to be adjusted according to each stage of its growth.
As a herb that grows throughout the year, hemp, in addition to a particularly important attribute that people know, it also has more uses. For example, it is a raw material for fiber products, clothing, ropes, sails, grease, paper, and medical supplies. Has a lot of medicinal value. Therefore, in addition to the development of large-scale outdoor cannabis cultivation, there are also indoor hydroponic cultivation and cultivation.
Hydroponic cultivation is to create a relatively closed environment that can store nutrient solution through specific facilities, and keep the water, fertilizer, gas, heat and other conditions required for root growth relatively stable, and all or part of the root system is "immersed" in the nutrient solution. Cultivation methods.
When planting indoors, LED plant lights can be used to supplement light during hydroponic cultivation. LED plant lights are made according to the absorption and utilization of sunlight by plant growth, and the spectrum and light intensity meet the requirements. It can be used to supplement light for vegetables, seedlings, fruits, and flowers. It can not only promote the progress of photosynthesis, but also achieve the effects of increasing production and increasing, launching in advance, and enhancing quality.
Photosynthetically active radiation (PAR) is a wavelength band between 400 nanometers and 760 nanometers. The PAR band starts from the purple spectrum (380nm to 450nm). Light in this range is believed to improve the color, potency and taste of flowers, and does not play an active role in the photosynthesis process. After that, the blue spectrum lies between 450 nm and 495 nm, which is very important for photosynthesis and the rapid growth of cannabis. This color of light is most commonly used in the germination and vegetative stages of growth because it promotes the rapid growth and development of plants. After the blue spectrum, the wavelengths from 495 nm to 570 nm represent the green spectrum of light. Cannabis plants absorb very little green light energy, but there are reports that small amounts can affect growth. The wavelength range of yellow light energy is from 570 nm to 590 nm. Although less important during photosynthesis, yellow/red light promotes germination and is essential during the flowering stage of plant growth. The final color of the visible spectrum is red. Its wavelength range is 620 nm to 760 nm.
This light is needed during the flowering period of hemp. Adding red light will induce buds and flowering. When the plant reaches the flowering stage, many cannabis growers switch to a more pronounced red light source. The mixed blue red light gets the best response from the cannabis plant. Its wavelength range is 620 nm to 760 nm. This light is needed during the flowering period of hemp. Adding red light will induce buds and flowering. When the plant reaches the flowering stage, many cannabis growers switch to a more pronounced red light source. The mixed blue red light gets the best response from the cannabis plant. Its wavelength range is 620 nm to 760 nm. This light is needed during the flowering period of hemp. Adding red light will induce buds and flowering. When the plant reaches the flowering stage, many cannabis growers switch to a more pronounced red light source. The mixed blue red light gets the best response from the cannabis plant.
The higher PAR of the hydroponic cannabis LED plant light can promote faster growth of cannabis and can lead to larger buds. Some people suggest that light intensity is even more important than spectrum. Use photon flux to measure the intensity of light. Photosynthetic photon flux (PPF) indicates how many photosynthetically active photons are emitted from a light source per second. By knowing the PPF value of the light source, the total light output that contributes to photosynthesis can be found. The unit used to express PPF is micromole per second (μmol/s). The effectiveness of PAR is a measure of the amount of photosynthetic light (μmol/J) produced per joule of energy. For indoor cannabis cultivation, it is recommended to use energy-saving lamps with high PAR efficiency.
Cannabis requires dark and light periods at specific intervals to achieve optimal growth. The hydroponic lighting system should be equipped with a timer or IoT-based equipment to help growers control the lighting. The optimal photoperiod depends on the specific plant species. Indoor cannabis growers tend to buy full-spectrum LED plant lights for cannabis to maximize its growth and produce more buds and flowers.
Adjust the light intensity, uniformity of light and control temperature through LED plant lights to provide the best supplement light for cannabis hydroponic cultivation, so that the final output of cannabis will increase, but also pay attention to the harvest time. As more and more countries legalize cannabis, Let the market of LED plant lights be broader, and the prospects are promising.
