Archive for the ‘Hydroponics grow light’ Category

Hydroponics grow light

Artificial lighting is widely used for growing food plants and in the horticultural industry in both hydroponic (soil free) and conventional growing. By adjusting the type of light, its intensity and the period of time it is used it is possible to tailor light to suit individual plants and maximise productivity.

Growing healthy plants requires many hours of good light every day. When this is unavailable naturally because of short day length or an indoor environment, a hydroponics grow light is an effective replacement.

For example, light from the blue and ultraviolet part of the spectrum is similar to the light found in spring which stimulates leaf growth, while light from the red part of the spectrum encourages flowering.

Artificial light was first used on plants in 1868 by a Russian botanist. The benefits of being able to grow food, flowers and leaves while natural light is not available mean that today there are many different and very effective types of hydroponics grow lights available.

The most popular is the High Intensity Discharge (HID) light. This is the most efficient type of hydroponics grow light and produces luminosity that is most similar to sunlight together with a substantial amount of warmth.

Fluorescent lights are also widely used, particularly in growing leafy plants such as lettuces, spinach and herbs. Find more information on these here http://www.easygrowhydroponics.co.uk/grow-tents-30-c.asp

LED lights can be manufactured to give a mixture of red, blue and green light in varying quantities and are useful for fruiting plants. LEDs have been tested on tomatoes, peppers and cucumbers and it was found that each crop performed best under a different ratio of red, blue and green.

As more research is carried out on how to maximise plant productivity, artificial light use looks set to increase.