The lighting in the winter greenhouse

The end of the fall - the beginning of a new season for people who can not bring himself to have "rubber" tasteless tomatoes and parsley from the supermarket. Creative adventure and a healthy scientific interest in these growers enough to try to grow vegetables and herbs in winter greenhouses. In many regions, the climate is too harsh to grow plants in greenhouses heated transparent: because of the high heat and light loss often turns out that the "heated and lighted street."

We have studied the experience of the participants FORUMHOUSE growing plants at full photoculture and tell you to what resulted in these experiments.

Member FORUMHOUSE Berestov never buys winter tasteless tomatoes and cucumbers, and believes that it is better to grow them in a warm greenhouse, making maximum use of lighting the night tariff for electricity.

At this point Berestova Hothouse prompted located ten kilometers from its site.

Berestov (Member FORUMHOUSE):

In the autumn, in the evening when it is dark outside, the sky over combine yellow from sodium lamps. As a huge fire.

This photograph was taken at the end of October, at nine in the evening, outside temperature 3 degrees.

It says the glow of the enormous losses of light even in very warm glass greenhouse. And we get the plants, according to a participant in the greenhouse of our portal, decorated inside with galvanized sheets, all the radiation of light from the lamp.

Berestov:

A small percentage of that consumed galvanized, turns into thermal energy, and also go to the cause.

By the way, on the night tariff: plants can be illuminated at night, but most of them have a rest from the light for at least three to four hours a day. And to minimize the loss of reflected light as possible, the floor bed greenhouses transparent black film.

Nikifor333 (Member FORUMHOUSE):

It will immediately convert light in the infrared range, which will not go through the polycarbonate.

The decision to grow plants at full photoculture mostly due to the fact that the greenhouse - it is usually a hobby, not a commercial project. There are still major work, so all the way to toss the wood into the furnace to grow tomatoes in a transparent heated greenhouse, no time.

So, Tomatoes and cucumbers on a full photoculture grew yevich. His experiment began in mid-August (when they were sown in seed tape two good hybrids of large-fruited tomatoes), and the harvest was shot in December, just before the new year.

Heated room size of 530 by 330 centimeters was glued foil insulating, were also suspended six HPS (Sodium tubular arc lamps) at 400 watts, delivered pots mounted tank for drip irrigation with an electronic control. With heat the room temperature is maintained at 21 degrees. After picking maintained 19-20 ° C day temperature, night night 17-18 ° C.

The windows in the room did not have, that is, it was a full svetokultury.

The difficulty in growing tomatoes this method is also the fact that these plants require HPS were constantly at a distance 40-60 cm away from the plant, so about once a week they have to lift and mount, for which special design is required. Besides HPS, plants dosvechivalis "lyumkami".

The experiment showed that the total svetokultury not for tomatoes. It turned out too expensive, despite the fact that the yield was more than modest.

Yevich (User FORUMHOUSE):

room equipment under the bushes 70 at a cost of 3,300 dollars and 150 dollars per month light. 2 kg of tomatoes. Yes, they are very tasty, but expensive.

One reason for such a modest harvest was the choice of varieties - Yevichdeliberately stopped on the late varieties like the most delicious. The "street greenhouse" These tomatoes were given up to 20 kilograms from the bush, and the possibility of HPS with sun possibilities in this respect, of course, incomparable.

Yevich:

Now and think what is better: free flushing or shine.

By the way, cucumbers full photoculture show a much better result:

Nikifor333:

Once he put the candlestick in the hothouse at the Smolensk nuclear power plant (heat freely released almost too). Illumination was there something under 22 CLA. The first cucumbers have gone in a month.

A "green onions" can grow in absolute darkness, only in the last two days, it can be "dosvetit" to give the green.

Berestov:

In our city already has an opaque brick greenhouse on a fully artificial light. It is clear that it is necessary much less, but the greenhouse works, and even makes a profit for the bow light.

Dill has a difficult crop to grow in a greenhouse. Without UV light it grows very "plastic", and odorless. And to calculate the artificial ultraviolet light is extremely difficult - just go too far, it is easy to destroy the plant.

After taking a greenhouse the heated room, yevich I came to the conclusion that free lighting will be much more profitable than free heat. Growing plants without sunlight proved expensive and ineffective. And if the artificial heat source can be anything: coal, gas, firewood, the artificial light source in any case will be electricity.

Yevich:

Just cheaper wood to "drown out" rather than electricity to cover the greenhouse.

Member FORUMHOUSE SlavaSu I decided to grow vegetables and herbs in the winter for sale. After examining all the approaches to the winter greenhouses, he considered prudent not to give up the sunshine completely, and to make greenhouse hybrid: part of the structure of a translucent material, and a part - of opaque.

With this approach, the north side, and part of the east and west walls are well insulated, and the southern part of the greenhouse is made of polycarbonate.

SlavaSu:

If we make the south side of the arch, it is possible to catch maximum sunlight: regardless of the angle of the sun above the horizon will be the site at a right angle to the sun. And we can make an arrangement that will cover the arch insulation.

The general opinion of many users of our portal, partially transparent greenhouse It allows plants to use precious energy of the sun. Of course, in the opaque winter greenhouse heat loss is much less. But:

Nikifor333:

As soon as the day a little more, then the heat and light in a transparent greenhouse will be a lot, but in a non-transparent as the time it is not enough.

Passw (User FORUMHOUSE):

Part of the greenhouse should still be made transparent. A supplementary lighting plants can produce at night and start 3-4 hours before sunrise, ie, at night. If the morning sun is not enough, leave the included lighting powered by batteries, rechargeable night at a cheap rate.

Teplosberezhenie greenhouses should not become a fixed idea, it is necessary to seek a reasonable compromise, and if you do not only going to grow "green onion" still makes sense to think about the transparency of the glazing. It can be:

• Double-glazed windows.
• Polycarbonate.
• Double glazing of a thin (4 mm) polycarbonate.

If we are talking about very small greenhouse, then reduce heat loss at night it is possible to cover the insulation.

Andrew Evgenyev (User FORUMHOUSE):

Cchitaetsya that little greenhouse it is possible to use all year round. In the dark cover it from above the insulation in order to reduce heat loss.

For information on how participants FORUMHOUSE heat their winter greenhousesWe will tell the next time. Till offer to get acquainted with the device officially recognized the best greenhouses FORUMHOUSE participants and watch a video about Greenhouses covered with the light-scattering.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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