LIGHTING INDOOR PLANTS IN WINTER - HOW CORRECT?
Lighting is one of the most important factors in plant life.
All the most complex biochemical processes of photosynthesis depend on it. How to highlight plants in winter?
Depending on the orientation of the windows to the cardinal directions, indoor plants receive more or less solar energy. More sun is received by plants placed on the windows of the south, southeast and southwest orientation. In summer, windows facing south have significantly less sunlight than spring. Windows facing east are illuminated by the sun until noon, and windows facing west only in the afternoon. Sun rays do not fall into the windows of the northern orientation at all, and only on the longest summer days in the evening, already before sunset, slightly slip into the room.
SPRING AND SUMMER for plants placed on windows of the south, southeast and southwest orientation, sometimes in order to avoid burns, you have to do light shading from bright sunlight. To do this, thin white curtains of gauze or chintz are attached to the windows closer to the glass.
Trees growing under the windows can also serve as light shading and protect indoor plants from sunburn. At the same time, too powerful a crown of trees significantly reduces the access of light to windows, and this is undesirable. The presence of trees on the north side is also undesirable, since indoor plants on this side are particularly affected by a lack of light.
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SUNLIGHT, penetrating a room through windows, illuminates plants only from the side, not from above, as in nature. At the same time, the entire crown reaches for the light, shoots and leaves develop unevenly, and the plants become one-sided. Therefore, they must be constantly rotated clockwise approximately 10-15 ° every 7-10 days.
In the northwestern regions of Russia, indoor plants come under the illumination of indirect sunlight, under diffused light. This factor favorably affects their growth and development.
The interior of the apartment also plays an important role in lighting. Walls, floors, ceilings, and especially furniture absorb some of the sunlight, and the darker the objects in the room, the more light they take. Therefore, in an apartment it is desirable to have light-colored furniture and the surfaces of ceilings and walls that reflect light well.
The closer the plants are to the glass, the more light they receive, and vice versa.
IN LACK OF LIGHT, plants bloom poorly and bear fruit, their shoots become thin, the leaves are small and underdeveloped.
ESPECIALLY STRONGLY DEFICIENCY OF LIGHT happens in autumnwhen the length of daylight hours is markedly reduced. Therefore, most plants (except figs, pomegranate, grapes, noble laurel) are illuminated with fluorescent lamps from 20 W to 40 W. You can use incandescent lamps, but the energy consumption will be significantly greater. It is even better to use modern phytolamps, however, they are not cheap at all.
It is advisable to equip each window with plants with three 40 watts lamps. Two of them are mounted on the sides, and the third is installed on top, at a height of 20-40 cm from the plants. If the plants are tall, then the lamp is mounted directly to the cornice, and if small, they are hung on cords at the desired height. Plants standing on the windowsill, as well as on a table that is pushed close to the window, will receive a sufficient amount of light. In summer, fluorescent lamps are also included on cloudy days.
In the summer, plants are taken out to the garden or to the balcony, and when it gets cold again they are brought into the room. At the same time, some of the plants, such as citrus fruits, coffee, psidium, begin to drop leaves - so they respond to changes in light conditions. Indeed, in an apartment, lighting is weaker than street lighting and the duration of daylight hours is shorter. This can be avoided by using fluorescent lamps, which extend the daylight hours to 10-12 hours.
Usually, additional illumination with fluorescent lamps begins from the first of October, and only on 10-15 of March are they turned off as unnecessary. With such an artificially created light regime, indoor plants grow, bloom and bear fruit better. Even the color intensity of the leaves is more pronounced.
See also: Do I need 24x7 color lighting at home?
WINTER PLANT LIGHT - VIDEO
© Author: N. AKIMOV, agronomist
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