Indoor potted plants can not carry out photosynthesis? That's because your bulb is too weak.

Now many people like to plant potted plants indoors, whether it is flowers, plants or asparagus trees, can play a good indoor decorative effect, by the way to purify the air. Although we feel good, but plants may not be happy, one of the biggest problems is the lack of indoor sunlight, so can our indoor lighting meet the growth needs of plants?

We all know that plants need sunlight for photosynthesis, but the demand for each kind of light is different, the following spectrum:

From the picture, we can see that the light absorbed by plant photosynthetic pigments is mainly blue light and red-purple light, while green light is the least, which is why we see that the plant leaves are green. So what kind of light does a fluorescent lamp emit? Nowadays, the fluorescent lamps used in homes are generally energy-saving lamps, and their spectra are as follows:

It can be seen that fluorescent lamps can provide more blue light for plants, but there is little red and purple light, and the main light is concentrated on the yellow and green light that plants do not absorb, so fluorescent lamps are very inefficient for plant photosynthesis. In fact, it doesn't matter if the efficiency is low. The biggest problem is that the power of fluorescent lamps is too small.

The intensity of light is directly related to the intensity of photosynthesis. Plant photosynthesis can produce oxygen, and plants themselves have been breathing and consuming oxygen. The light intensity that can balance the two is called light compensation point. The light compensation point of each plant is different, while the intensity of fluorescent lamp itself is small, and there is little red and purple light. It is basically impossible to reach the standard of making plants thrive.

At present, there are indeed indoor light sources used to replace sunlight in agriculture, mainly sodium lamps, metal halide lamps and LED lamps, sodium lamps and metal halide lamps were originally used in mines, large squares and other places for lighting, the power is large enough, and the spectrum can also meet the needs of plants, which is one of the most cost-effective.

Full-color LED lamps can also be used to provide light sources for plants, but LED lamps consume too much electricity, and the same wattage consumption is 10 times that of sodium lamps, which is quite inefficient compared with sodium lamps and metal halide lamps.

Finally, there is an incandescent lamp, which may have never been seen by many children born in the new century, yes, the original light bulb invented by Edison.

The spectrum of incandescent lamp is more rough, incandescent light contains a lot of invisible light-infrared, which is why we think the light of incandescent lamp is hot, and if the power is large enough, it can even be used for barbecue. it's a little scary to use it as a light source for plants.

Therefore, expect indoor lighting to allow plants to complete photosynthesis, unless you are using industrial and square-level metal halide lamps and sodium lamps, or do it honestly and let plants go out to bask in the sun every day. Solar energy tops fluorescent lamps for several days a day.