Back in school, we all learned about photosynthesis, the process by which a plant converts light energy into chemical energy that it uses to live and grow. When we learned about photosynthesis in school, most of us learned that the process requires sunlight. However, due to technological advances over the last several decades, humans have learned to trigger photosynthesis using artificial lights, now commonly known as grow lights. In this article we will discuss photosynthesis in great detail to understand how you, as a grower or farmer, can better harness the power of artificial light to grow your plants. We will begin by providing a recap of the photosynthetic process.
WATCH RELATED VIDEO: All About Indoor Plants Lighting - Beginner SeriesContent:
- How to Grow and Take Care of Indoor Plants
- The Definitive Guide to Grow Light Spectrum
- Can any plants live without sunlight?
- Using Indoor Grow Lights in the Greenery™ S
- How to Grow Houseplants in Artificial Light
- Carbon Dioxide and Better Indoor Harvests – Part 2
- Measuring Plant Growth with Sunlight
- Is Light Through A Window Considered Direct Sunlight?
- Light, Temperature and Humidity
How to Grow and Take Care of Indoor Plants
In this blog, we're going to explore how farming with indoor grow lights can grow strong and healthy plants indoors. First, it is important to understand how photosynthesis — the process plants use to convert light energy into food — works.
See exactly how it works in the Greenery S. Photosynthesis takes light energy and converts it into potential chemical energy, which a plant stores in the form of sugar. The plant then uses this energy to grow. The process begins in chloroplasts. Chloroplasts are parts of plant cells that contain the light-absorbing chlorophyll that gives a plant its green color.
When chlorophyll is exposed to light, the cell goes through a complicated chemical reaction, converting light energy into molecules of potential chemical energy called ATP. The plant then uses ATP and CO2 from the surrounding environment to make glucose, a simple sugar molecule. As the plant absorbs more and more light, it builds complicated glucose chains into larger compounds of cellulose and starch.
The largest molecules become plant cell walls, others are used during plant metabolic functions, and the rest provide humans and animals with important food energy. From a plant biology standpoint, the entire process can be summarized as:. While photosynthesis originally evolved as a reaction to sunlight, the development of indoor farming has proven that indoor grow lights can be as, if not more, effective than the sun. While the sun is the ultimate resource, it is not infallible.
This is a blend of every known light wavelength — from infra-red to ultraviolet — with green and yellow light as the most intense nm. Plants, however, only have receptors for red nm and blue light, so they are unable to process the rest of the spectrum effectively. LEDs are able to counteract these inefficiencies.
LEDs light-emitting diodes are powerful, energy-efficient and long-lasting. They also have low heat outputs, making them ideal for indoor farming. LEDs can also be customized to emit only select colors, such as the red and blue light plants need to grow strong.
Finally, like with all other aspects of container farming, farming with indoor grow lights gives farmers something they can never have with the sun: control. Using LEDs means creating hour sunlit days and brightening, dimming, or changing the color of the light based on the crop. As we mentioned before, plants are picky about the type of light they absorb. Indoor grow lights give them the optimal red and blue wavelengths to grow big, healthy, and strong. But why red and blue specifically? Outdoors, red light is most plentiful during summertime.
When plants sense more red light using a special light receptor, they release a hormone that keeps chlorophyll from breaking down. This enables the plant to take the most advantage of the plentiful sunlight during spring and summer. For this reason, red light yields large, healthy plants, since the chlorophyll is converting plenty of light into cellulose.
Keep in mind—like every other good thing, too much red light can cause serious problems, namely lanky and spindly plants.
While red light is more prevalent in spring and summer, higher levels of blue light occur during fall and winter. For this reason, the initial reaction is to use no blue grow lights, but having some blue is important. It's common to see plants with more exposure to blue light yield a short and bushy plant with a more complex stem structure. Too much blue light, however, will result in stunted plants. Most indoor growers recommend getting the best of both worlds using a ratio of red to blue light.
The high level of red light keeps plants in their prime growing mode while the small amount of blue encourages stem growth. Measuring the intensity of light is complicated — there are at least half a dozen units of measurement, all meaning different things. Watts , for example, are a measure of power that everyone is likely most familiar with.
That is because watts describe how much power a light source consumes, not what it emits. Source: Fluence. A lumen measures light based on how humans perceive it. We have what's called "photopic vision", which is our vision and color perception in well-lit conditions.
Lumens are charted on a photopic response curve shown above and measure the light that humans and animals can see. As you can see, the range is mostly green light, with little of the red or blue parts of the spectrum.
Also, you will likely be using red and blue grow lights in your farm, which will not register high for lumens. For these reasons, you should avoid using lumens to measure the power of your indoor grow lights. What you should be using to measure the power of your grow lights is photosynthetic photon flux density PPFD.
Before we dive into the virtues of PPFD, we need to understand what it is measuring. PAR is not a measure of anything itself but is more of a description. PAR light is all the visible wavelengths of light which cause photosynthesis, found within the nanometer range.
For this reason, PPFD is the most accurate measure of light power. First, unlike other measures, it considers the entire spectrum of light that plants see. PPFD also takes into account the amount of light that will actually reach the plant instead of focusing only on the point of origin. PPFD controls for this kind of inaccuracy. We know that the perfect light source is the secret to growing big and healthy plants.
The Greenery S LED boards have evenly spaced red and blue diodes to prevent light diffusion and wasted energy. Combined, there are LED boards. The directional arrays, one on either foot wall and two down the center aisle, help the plants soak up as much light energy as possible. The red and blue diodes nm and nm, respectively meet the specific needs of the plants that we described earlier in this article. The cultivation area boards have a ratio of red-to-blue LEDs, ideal for promoting the growth of dense leafy greens.
The nursery station boards have a modified ratio of red-to-blue. The reasoning is that seedlings benefit from an elevated amount of blue light to encourage stem growth early on. By default, the Greenery S provides plants with a mixed red-blue light, giving the farm its distinct purple glow. The operator can also control the color of the lights independently in individual zones to coax out desired plant characteristics. This level of control means that you can create custom light conditions for multiple crop types, or experiment with different light recipes for one crop to see what gives you the best taste and highest yield.
Light is not the only important input, however. As seen in the equation and chart, carbon dioxide is another important lever for photosynthesis. Even after the chloroplasts are exhausted, CO2 can still influence plant growth.
This is why environmental control is often as important as light control. This means that all the energy the operator is using to power the LEDs is being used by the plant to grow. Any higher and the operator would be wasting energy, any lower and the operator would be missing out yields. The Greenery S takes a huge leap in LED technology by allowing farmers to customize the lighting spectrum, intensity, and duration of light to achieve their desired plant yields. Not only are the LEDs more powerful and efficient; they also give farmers precise control over their lights with brand new power modes: Eco prioritizing farm efficiency by reducing power consumption , Performance prioritizing plant growth for greater yields, and Standard balances the two.
Here are all our sources from this blog, read them for more information: photosynthesis , introduction to light and color , influence of colors on plants , and measuring the power of light.
Back Small Business Education Non-profit. LEDs Can Bring the Sun Indoors In this blog, we're going to explore how farming with indoor grow lights can grow strong and healthy plants indoors. See exactly how it works in the Greenery S PhotosynthesisLED Grow Lights vs.
Sunlight While the sun is the ultimate resource, it is not infallible. Color As we mentioned before, plants are picky about the type of light they absorb. Power Measuring the intensity of light is complicated — there are at least half a dozen units of measurement, all meaning different things.
Indoor Grow Lights in the Greenery S We know that the perfect light source is the secret to growing big and healthy plants. Independent color control The red and blue diodes nm and nm, respectively meet the specific needs of the plants that we described earlier in this article.
Dynamic Lighting Control The Greenery S takes a huge leap in LED technology by allowing farmers to customize the lighting spectrum, intensity, and duration of light to achieve their desired plant yields.
You can learn more about the Greenery S when you download our comprehensive product booklet! Dec 17,Creative Places to Put a Container Farm.
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The Definitive Guide to Grow Light Spectrum
Click to see full answer. Regarding this, can plants photosynthesize from light bulbs? Typically, regular incandescent bulbs like the ones you'd use in your house omit orange and yellow light. These wavelengths of light are used in photosynthesis but foliage growth relies more on blue wavelengths of light.
All plants release oxygen throughout the day through photosynthesis, and Zamia definitely does the same. It's a great plant to have in your home.
Can any plants live without sunlight?
Houseplants are good for your health — and not just for their visual beauty. They essentially do the opposite of what we do when we breathe: release oxygen and absorb carbon dioxide. This not only freshens up the air, but also eliminates harmful toxins. Extensive research by NASA has revealed that houseplants can remove up to 87 per cent of air toxin in 24 hours. Studies have also proven that indoor plants improve concentration and productivity by up to 15 percent! At work, place plants, especially those with broad leaves, on your desk; they will help regulate humidity and increase levels of positivity — seeing greenery and nature help us feel more relaxed and calm , which in turn benefits your every day mood. Indoor plants serve a practical and aesthetic purpose, and will enhance your life.
Using Indoor Grow Lights in the Greenery™ S
Most plants are autotrophs because they make their own food by photosynthesis. But for every rule there is an exception. Some plants are non-photosynthetic and parasitic, obtaining their food through a host. Parasitic plants can be holoparasites, with virtually no chlorophyll and thus completely parasitic, or they can be hemiparasites, with the ability to photosynthesize to some degree. We will focus on holoparasites here.
There are numerous species of plants all over the world.
How to Grow Houseplants in Artificial Light
Yes, photosynthesis can occur in the artificial light, provided the plant receives the correct wavelength of the light spectrum. Researchers can successfully grow plants using only artificial light in growth chambers. But sunlight is best for most plants. Sunlight is the perfect balance of wavelengths necessary for plant growth and blooming, but you can also use artificial light to help your plants along. In fact, low-light foliage plants such as pothos and peace lily can grow quite nicely in windowless offices with enough artificial light. Can plants photosynthesize through glass?
Carbon Dioxide and Better Indoor Harvests – Part 2
Plants produce their own food carbohydrates through the process of photosynthesis. Researchers have learned that many common houseplants absorb other harmful gases as well. This research was spearheaded by NASA where they have researched methods of cleansing the atmosphere in future space stations to keep them fit for human habitation over extended periods of time. They've found that many common houseplants and blooming potted plants help fight pollution indoors. They're reportedly able to scrub significant amounts of harmful gases out of the air during photosynthesis.
The sun will always be the best source of light for plants. Sunlight allows plants to perform photosynthesis, a process which is.
Measuring Plant Growth with Sunlight
Click to see full answer. Similarly, you may ask, can plants photosynthesize from light bulbs? Typically, regular incandescent bulbs like the ones you'd use in your house omit orange and yellow light.
Is Light Through A Window Considered Direct Sunlight?RELATED VIDEO: Can You Grow Plants In Artificial Light?
P hotosynthesis is a chemical process! Processes have an order or instructions that need to be followed just like a recipe needs to be followed in order to make food. Carbon dioxide, water, and light are the ingredients plants need in order to make their food to grow. Carbon dioxide is a gas that we humans breathe out.
Light requirements for indoor plants vary greatly, and many are particularly sensitive to direct sunlight. But is light through a window considered direct sunlight or not?
Light, Temperature and Humidity
Whether you live in a cloudy region or want to grow an indoor garden, you probably realize that you need more sunlight. Most plants require several hours of sun exposure to create enough nutrients. However, many plants need less sunlight due to their natural origins. Most plants can grow without sunlight, but all plants require light to undergo photosynthesis. Without natural sunlight, artificial grow lights can provide the specific light wavelengths that plants need to grow.
Houseplants and succulents are becoming an increasingly popular way to spruce up the home. While indoor plants provide fantastic aesthetics, they also serve many other purposes — recycling carbon dioxide, adding humidity to a dry environment, and psychological benefits. Below are four reasons why it is beneficial to grow plants in your home. First, plants are beautiful.