The 800w LED grow light used in the field of plant cultivation shows the following characteristics: rich wavelength types, consistent with the spectral range of plant photosynthesis and light form; spectral wave width half width and half narrow, can be combined according to needs to obtain pure monochromatic light and composite spectrum ; It can concentrate light of a specific wavelength to irradiate crops in a balanced manner; it can not only regulate the flowering and fruit of crops, but also control the plant height and nutrients of the plants; the system generates less heat and takes up less space.

800w LED grow lights are mainly used in two aspects in the field of plant cultivation: one is as supplementary lighting for plant photosynthesis when there is little sunshine or the sunshine time is short; the other is as inducing lighting for plant photoperiod and light form.

1. Supplemental lighting for plant cultivation

With 800w LED grow light supplementary lighting, it can be effectively transformed into effective photosynthetic radiation. The growth rate and photosynthetic rate of lettuce have increased by more than 20%, and it is feasible for plant factories to use LEDs. Compared with fluorescent lamps, LED grow lights with mixed wavelengths can significantly promote the growth and development of spinach, radish and lettuce, and improve morphological indicators; it can maximize the bioaccumulation of beet, and betaine is the most significant in the roots. Accumulate and produce the highest accumulation of sugar and starch in the hair roots. Compared with the metal halide lamp, the anatomical morphology of the stems and leaves of the pepper and perilla plants grown under the wavelength LED changes significantly, and as the optical density increases, the photosynthetic rate of the plants increases. The compound wavelength LED can increase the number of stomata in marigold and sage.

2. Induced lighting of plant photoperiod and light form

The 800w LED grow light with a specific wavelength will affect the flowering time, quality and duration of the flowering period of the plant. LEDs of certain wavelengths can increase the number of flower buds and flowering times of plants; LEDs of certain wavelengths can reduce the flowering response, adjust the length of the stalk and the flowering period, which is conducive to the production and sales of cut flowers. This shows that LED regulation can regulate the flowering and subsequent growth of plants.

For greenhouse plant cultivation, you need to know the following:

Depending on the location, there will be sunlight or shade in some places, some plants like to bathe in the sun (sunlight or light-colored plants), and some plants like shade (shaded plants). Even if there is only one plant, plant parts (such as leaves) can be divided into shallow leaves and shade levels: since 100% of the light shines on the upper shallow leaves, only 2% of the light reaches the shaded leaves close to the shallow leaves. To compensate for the lack of light, shadow blades are usually larger than sun blades. The nature of the leaves is also different: the sun leaves are usually thicker, leathery and hairy, while the shaded leaves are thinner.

Appropriate lighting time

In terms of the duration of light, most plants have a natural circadian rhythm. This can also be imitated with artificial light in the greenhouse: there is already a greenhouse lighting system, which can be programmed with the timer function, so that the 800wLED grow light can slowly fall on the plants like nature.

Appropriate light intensity

The light intensity depends on the photon flux density, that is, how many photosynthetic photons are in the radiation. It can be quantified as micromoles per square meter and second (μmol/m2s). For comparison: Direct solar radiation up to 2,000 μmol/m2s. Your greenhouse plants usually don't need as much light. As the guiding principle of light intensity in artificial greenhouse, 600μmol/m2s is enough to achieve good growth.

Reasonably distribute the light evenly

Measure the floor area. Multiply the length by the width to get the square meters of the planting area. You can make the right choice based on how much power to provide per square meter, that is, how many 800w LED grow lights are installed per square meter. In this way, each lamp can be evenly distributed, so that the outer edge will receive strong light, so that the light will be more uniform, and the growth of plants will be more effective.

Appropriate light color

Light travels from the sun to the earth as electromagnetic waves of different wavelengths. The wavelength range visible to the human eye is between 380 and 750 nanometers (NM), which roughly corresponds to the light that plants can use for photosynthesis. The wavelength of light determines the so-called light color. The short wave turns blue, and the long wave turns red. Light waves around 500 nautical miles are green and reflected by plants. This phenomenon is also called green space because less photosynthesis can be used to use green light. You should not rely on greenhouse lighting that only combines blue and red light without any green part, because it is still very common. Because this can shut down the weaker photosynthesis and complete plant growth under green light.

    The watering of plants should also master the principle of not drying or not watering, but watering thoroughly. It is necessary to spray water on the leaf surface and the ground around the flowerpot to keep the leaf surface moist and high air humidity, which is beneficial to plant growth. Many foliage plants come from tropical and subtropical regions. The 800wLED grow light does not produce infrared rays to dry the soil and plants, so you should water less in winter to prevent low water temperature.

Based on the special requirements of the space environment, the light source used for space advanced plant cultivation must have high luminous efficiency, and the output light wave is suitable for plant photosynthesis and light shape structure. Compared with cool white fluorescent lamps, high pressure sodium lamps, and metal halide lamps, 800w LED grow lamps are more effective The ground converts light energy into photosynthetically effective radiation, and the plant has a better light supplement effect; it also has the characteristics of long life, small size, light weight and solid state. 800wLED grow lights are highly valued in plant cultivation.