The senior optometrist tells you that the succulents fill the light

Winter is a very depressed thing for friends who plant succulents in the north. The outdoor is too cold. In order to save their lives, they have to enter the room fleshyly, and the indoor lighting is inevitably worse or even worse... At this time, The fill light will be a good choice. The author of the following stone loves the experience of using a fill light for five years and will tell you about the effects of various light on succulents.

Given that the author loves stone is already a senior fill light user, the span may be too high for beginners who just want to use the fill light. My suggestion is to combine the selection of succulent fill light this article, just started The fill light is not so advanced, choose

Choosing red and blue with a ratio of 2:1 to 3:1 and adding some UV light can also be used first, pay attention to the power must be enough.

I am very fond of CAM plants (plants of the sedative acid metabolism pathway, mostly succulent plants). This type of metabolizing plants grows very strangely. Whether it is succulents, orchids or air pineapples, all kinds are wonderful. Since it is a CAM plant, it is to adapt to the extreme environment, give up the time of evaporation during the day, and change to nighttime metabolism; although it is all CAM plants, this adaptability is not entirely due to light and rainfall conditions, and some because of the soil. Reasons - such as orchids, and more extreme epiphytes (air pineapple, phalaenopsis)

However, I have only half a day of planting conditions. Most plants on the balcony can only illuminate 4-6 hours of direct light. They are not suitable for cactus, some Sedum and many grass flowers that I like. Without conditions, we will create conditions. Even if you have full-day conditions, the right amount of light is necessary! Because most of our regions and the lighting conditions of the origin are different. The gorgeous color of Korean meat is obtained by hormones, which I highly recommend. It is impossible to develop the original colors of the plateau plants by the efforts of the lighting conditions in Korea.

Five years ago, in order to start using artificial light for jasmine, the first use of red and blue LEDs, only red and blue, experimented with a variety of models, and finally used a 90-watt LED with a fan, the price of more than 1200. However, this investment is generally worthwhile. I haven't used this light yet, and there is no sign of ablation. For the effect of grass flower, jasmine flowers 5 waves a year. However, this kind of lamp has more red light (I use 7:1). It is more suitable for flowering plants. For meaty, it does not prevent the lengthening or coloring, but it can meet the basic needs, even if there is no natural light, it will not die. The lack of water can also prevent the apprentices. For the yin-resistant and succulent plants, the half-yin can also be satisfied.

However, in particular, under different planting conditions, the applied light is completely different. Generally, it is planted indoors or closed on the balcony. The blue light effect is better, because most of our household glass is float glass with high iron content. Low-frequency light has an absorption effect (especially UVB). If it is not closed to the balcony, it is purely against the rain, then the full spectrum is needed.

Grass flowers, desert plants, plateau plants... There are some differences in the types of light supplements for different plant types. Knowing this difference allows us to fill the light in a more suitable way, while saving equipment investment and electricity consumption. Here are some practical applications

One: application of invisible light

Desert and plateau plants. These plant plants are relatively small and tend to accumulate rather than grow due to harsh environments. These kinds of phenomena, we must create a similar growth environment. In these environments, strong ultraviolet light is indispensable. Although ultraviolet light has an inhibitory effect on plants, it strengthens plant cell wall thickness, reduces stem elongation, and reduces plant evaporation. It is stronger for long-wavelength UV enhancement of high altitude plants. The synthesis of anthocyanins, the relatively thin air environment also inhibits the synthesis of chlorophyll, so many of the plateau plants we see, the color is more beautiful. However, there are still slight differences between the two different environments, because the UV-wave penetration ability is weak, and the difference is high in high-altitude areas and low-altitude areas. However, long-wave ultraviolet (partial visible light) penetration is strong, and there is little difference between the plateau and the plateau. Therefore, for high altitude plants, strong ultraviolet rays are important, but for desert plants, long-term exposure is more important due to drought and less rain. In practical applications, UVB10.0 and UVB HO (or medical UV, but this requires careful calculation of strength). In the process of survival, ultraviolet rays are not essential, but it is necessary to cultivate plant forms. For desert plants, long-term exposure with 10.0 is better, but for high altitude plants, UVB10.0 is not enough, unless the intensity is increased, but the energy is wasted. You can use the medical UVB, or the new UVB HO. At the same time, it is said that the UVB lamps on the market are designed for reptiles, and the UVA content is too small. If excessive sun exposure is used, the color is insufficient. Recently, the experiment started with a UVA 340 lamp, which is actually more expensive for simulating sunlight aging. It belongs to narrow-spectrum UV, and its UVA, and UVB output ratio is almost the same as that of sunlight, because the narrow spectrum intensity is quite strong. More energy is concentrated on the UV. The 36-watt standard T8+ reflector can be close to the sun level within 60 cm. However, this kind of light is too fierce, and it is used cautiously. If the plant is lacking for a long time, the distance will gradually approach, and it will be slowly supplemented from 80 centimeters.

UV supplementation is only a form requirement and does not promote photosynthesis. However, as a family culture, the overall light intensity is not enough. Just supplementing the UV can only prevent the color from being colored. We must pursue the reasonable growth rate while seeking the most form. Then the general full spectrum plant lamp can be satisfied. As long as the intensity is high enough.

Infrared Part: Infrared and low-wavelength red light are good for promoting flowering results. Some plants have been planted in the past with incandescent lamps for long periods of time (eg strawberries). This is the result of using infrared light emitted by incandescent lamps to stimulate the buds. But just as not all plants are sensitive to ultraviolet light, the CAM plants we grow seem to be insensitive to infrared light, and agave, pineapple and many sedum plants only bloom once in a lifetime. Large agave flowers only bloom for decades, so infrared rays are optional for planting perennial ornamental plants, and the infrared penetrating power is very strong, as long as the heat sinks emit infrared light. Our species of ornamental plants does not require a lot of results, and this thing is optional.

Two: the application of visible light

There are several lamps available on the market that can be used for plant fill light, 1.LED, (red and blue, or full visible spectrum) 2. Three primary colors, 3. Small sun (this also with ultraviolet and infrared) 4. Rare earth lamps ( Pink or blue).

1.LED

This is more energy efficient, waste heat is emitted very little, and the life is very long. LED planting is absolutely OK, but I don't recommend LEDs for family raising. Although the LED can be full spectrum, the distribution of the full-spectrum lamp bead is not uniform. If the small area is irradiated at a close distance, the spectral distribution is not balanced enough for small plants. And now I have not found an LED with medium wave UV. LEDs are more energy efficient, and uneven distribution of lamp beads can be solved by large-scale, long-distance, but in general, full-spectrum LEDs are more suitable for greenhouse and factory planting. At the same time, the lack of UVB is also more suitable for planting C3 C4 plants. If the UVB lamp bead is added separately, it is possible to have a large area and high strength. However, in general, the amount is small and the efficiency is not high. If the annual plant, regardless of root development, regardless of morphology, red and blue is enough, if you need to add orange yellow light to consider the development of the root, orange yellow light also has a certain underground accumulation.

2. Three primary colors

The fever is not too much, cheap, the spectral distribution is not very reasonable, the energy consumption is relatively large, and the plant utilization rate is below 70%. The disadvantage of using three primary colors is that the energy consumption is still a little bigger. Without the light intensity of 10000LX, it can be said that there is no effect on desert plants. But the energy required for the 10000LX is quite scary. I have calculated that it is more than 500 watts per square meter (50 CM distance), and long-term use is not cost effective.

3. Little sun

As the name implies, it is a small sun that fully mimics the sun's rays and even heats up. If it is enough, it is bright enough, and it has the same effect as sunlight. But if the condition is "sufficient", the energy consumption is terrible, and the South African plants we like don't like too hot. This is absolutely useless, it is not bad for the kind of tropical water grass, or you plan to plant the lotus in the anti-season, but the energy consumption is too amazing, abandoned.

4. Rare earth lamp

The main component is copper selenium powder, which causes a specific spectrum, which is blue and pink. This is also the case with aquarium lights, which are fluorescent lamps like the three primary colors. The spectral accuracy is higher than the three primary colors, less than the LED, which means that the same effect is higher than the LED, and the lifetime is shorter than the LED. However, his advantage is that the luminescence is very uniform and the spectral continuity is strong. This uniform light is more suitable if we don't need too much exposure area. I mainly use this kind of blue, there is a certain amount of UVA in the blue and negligible UVB, it is more suitable for cooperation with UVB lamps. Germany and the United States began producing such lamps a few years ago for water plants. It is also produced domestically. 200W per square meter is basically enough for desert plants, if it is for highland plants, it can be increased appropriately. Don't be too much, it will be tragedy~! Nowadays, the meat friends use blue light. I must say that the state of the plant with blue light alone will be a bit abnormal. If it is used as a half-day light, there is no problem. If the average is less than 2000LX during the day, red light must be added.

Third, the use of different types of lamps to deal with different planting environments

1. As the most common is the sun but the glass, then you only need UVB, I must say that UVB10.0 also does not reach the strength of the origin, but at the same time our total light intensity It also does not reach the origin, and it can be raised in combination with water control. Nothing grows slowly.

2. Half-day sunshine, without glass, then you need to increase the intensity of the whole spectrum, red and blue + UVB + UVA, or rare earth lamp + UVB, make up for half a day without direct sunlight

3. There is no light at all, or long-term rain, you need high power, full spectrum, indoor scattered light red light can be a small amount of UVA, low-wavelength light needs to be strong, the flower can add red light ratio, but too strong flower will prematurely decline .

4. Strong manual intervention, artificial light control combined with ventilation, watering and other means, to a certain extent can fight high temperature dormancy, I can grow apricot can achieve semi-dormant, the species of radix is ​​not dormant. In fact, except for several plants in a few extreme environments, most of my winter plants can grow slowly during the summer. Enhanced light is more meaningful for summer-type plants and can be used against slower temperature growth in winter. In fact, for CAM plants, the transpiration of plants is not obvious. The temperature can be countered by light, and if the temperature is appropriately increased, it grows throughout the year.

Four. Illumination distance

Now whether it is LED or rare earth lamps, almost all W/40LM (special spectrum) is necessary to achieve the effect of 200W square meters, plus the energy consumption of UVB, almost 240 watts, not more than 400 watts, will make plants shrink. Planting desert plants, UVB needs to reach more than 50, alpine plants need to reach more than 100, low out of the state, the dormancy period can be reduced. In the period of strong growth, increase appropriately, do not exceed 200~! Easy to kill.

Fifth, the adverse effects of using errors

The value of alpine plants lies in the fact that we are difficult in summer, keep the light, and also cool down while ventilating. Therefore, the above methods are not effective for alpine plants, and the growth rate can only be enhanced by the season with large temperature difference. For high temperatures, high illumination, the results for alpine plants are basically dead, or half dead.

It is meaningless to use red light alone, unless it is for flowering, but it has a lot of factors to promote flowering with temperature and fertility, and long-term nutrient accumulation.

Excessively strong blue light, will be crazy buds, UV intensity will inhibit growth, or kill plants, non-growth season to reduce intensity, reduce aging, anti-temperature dormancy, need to strengthen the irradiation in the growing season, anti-length, out of state.

If it is a specific spectrum of visible light, generally it is enough to reach 3%-4% of sunlight. For example, the light saturation point is 150,000 LX. We only need to reach 4500, but the plants that can reach the saturation point of 150,000 LX are not too much. But considering that the spectrum we use is different from sunlight, there is no problem with adding a little. I use between 3000-5000.

The water grass lamp can meet the growth requirements of plants, but the grass lamp does not contain UVB, but the water grass is a lower plant, and there is no UVB in the water. Many plant C4 plants do not react to UVB, and plants that respond to chlorophyll B do not need it. UVB.

Reducing watering to prevent prolongedness is not effective for all plants, and prolonging the effect of the watering cycle on plants only forces them to accumulate. For many plants that do not have strong accumulation ability, they actually break the capillary heel and reduce the absorption capacity. Essentially it is a method of sacrificing normal growth rate.

My personal use of the fill light, usually 2 three blue tube, 1 pink tube, or 2:2, 4 layers on the shelf plus a UVB, power consumption is about 360 watts per square meter (the strongest response) Demand), UVB I use both 10.0 and UVB HO, different plants with different strengths, depending on the situation.

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