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We collect useful information about cultivation, greenhouse technologies, interesting projects, new products of our company and the entire greenhouse industry.
New countries, exhibitions, new or classic proven methods.
Interviews with specialists, research and reviews. Answers to questions and interesting facts.
It contains everything that can be interesting and everything that can be useful.
Propagation area in a greenhouse
When planning to grow plants you always want to make sure that yongplants that you have are healthy and of good quality. So where are you taking those from?
In greenhouses of relatively small area, youngplants are most often grown directly in you greenhouse right before the planting. Literally, in the same place. This allows you to save time without additional hassle.
In greenhouses of a larger area (over 3000 m2) always best to organize a separate production zone. It is called a propagation area. Here young plants have necessary climate and handled the best way when efficiently used all resources.
Propagation area allows to grow youngplants without stopping any process in the main production department. In propagation area you want a separate microclimate with its own lighting and irrigation regimes. Propagation area is equipped with its own technological equipment which is individual for each project and depend on the total area of the greenhouse and crops to be grown.
When we talk about vegetables the temperature is maintained around 24°C during the day. It may differ though depending on the crop variety. Make sure that the temperature regulation is done smoothly in order not to harm young plants.
It is also important to dose CO2 when growing youngplants. The minimum level of CO2 is 450 ppm and maximum is 550 ppm. Make sure you dose clean carbon dioxide that does not contain impurities formed during the combustion of natural gas. Sometimes growers do not dose CO2 as the plants do not have a bulk vegetative mass and do not need an increased amount of it. That happens in less professional farming as well.
Plants’ arrangement in the propagation area should be carried out quickly and in a timely manner in order not to miss the moment of strong compaction and stretching of plants, otherwise in the future that may complicate planting in the main production department.
The advantage of having propagation area is that it can be used later for growing lettuce, dill, parsley or strawberries in pots.
Consider best option for your own greenhouse depending on the type of greenhouse you have, area available and chosen crop. In case you need any help, Perspekta team has an individual approach to each project and we advise the best option for your greenhouse!
Meeting “Melnyk Garden”
Together with our partner Roland Fidder from Poly-Hort visited Ukrainian nurseries . “Melnyk Garden” is one of them, a company with 30 years of experience in the field of natural agricultural production.
The range of this company already reaches almost 200 crop varieties that can be found on shelves of the largest supermarket chains and in the menu of the most popular restaurants in Ukraine.
We had a good opportunity to talk with the owner – Ivan Melnyk, a person who has invaluable experience growing all kind of crop in foil greenhouses.
"We never stop in our development and long for improvement for our customers", says Ivan.
We are grateful for the hospitality and the opportunity to discuss all the nuances that growers have using film greenhouses. We also happy to introduce innovations in the plastic foil for the greenhouse market showing their benefits of additives used in Poly-Hort poly film.
Perspekta team does its best to make sure their customers are happy and prepares the best professional solutions !
What is important when choosing a film?
Film greenhouses are very popular among greenhouses. They have several advantages and are perfect for starting in the greenhouse business.
When choosing a film, you should definitely pay attention to its main characteristics, namely:
- Film parameters: roll width, thickness, length
These parameters are set for the project, it is important to cover the greenhouse with a solid roll.
- High mechanical characteristics
The film must be resistant to high loads (wind, rain, snow, hail, extremely high temperatures, cables, cables, etc.)
- Light transmission
The overall light transmittance of a film for a greenhouse is extremely important for photosynthetic active radiation (PAR). The range of the PAR is from 400 to 700 nanometers. The intensities of the wavelengths of these waves (PAR spectrum) directly affect the growth and development of plants.
- UV resistance, film durability
Choose a film that has UV stabilizers. This is an additive that increases the life of the greenhouse film.
- Heat effect
It is important not to forget about the special properties of the film, which block infrared radiation and help to achieve a controlled temperature in the greenhouse, providing insulation of plants and minimize the operation of heaters at night.
- Availability of necessary additives
Manufacturers use the best technology in order to create a high-quality greenhouse film that will create a controlled and uniform microclimate in the greenhouse regarding the quality of light, temperature and humidity, regardless of the climate outside the greenhouse. To do this, you can choose additional additives: anti-condensation, anti-fog, anti-virus, anti-dust.
And if you still doubt which film to choose - call us! We will help you save time and effort, advise what is best for you!
Bumblebees in greenhouses
Large greenhouse farms strive to be as efficient as possible and get as many kilograms of production as possible. Without full-fledged quality pollination, this is impossible to achieve. There are many factors in greenhouses that can negatively affect the pollination process of various crops.
Therefore, the use of incredibly beautiful insects - bumblebees - has become an integral part of this process in greenhouses.
To achieve high results, optimal conditions are needed that promote both plant vegetation processes and high activity of bumblebees.
In Ukraine are already special farms for breeding bumblebees. As its founders explain, bumblebees cause pollination in greenhouses much better than bees. A bumblebee flies "to work" already at a temperature of 7-8 ° C, while a bee only at 12 ° C, and, unlike a bee, also works in cloudy weather. But there is no alternative to bumblebee on tomato: the flower of this plant does not accumulate nectar, therefore, it is not at all interesting for a bee. On average, greenhouses need 6 hives with bumblebees per hectare, for starters - at least 3-4.
Not everyone knows that there is a problem in many film greenhouses - often insects behave disoriented. This is because in such greenhouses there is a blocking of the UV spectrum (blue spectrum) in the film to a wavelength of 380-390 nm. To solve this problem, manufacturers offer new types of films without UV blocking, which allow the blue spectrum of light, which bumblebees need for orientation, to pass through.
Today, for the natural pollination of many crops in industrial greenhouses can not do without these insects. It should be noted that due to effective pollination, bumblebees can increase productivity, for example, tomatoes - by 25-30%. And in film greenhouses, bumblebees can be more effective than bees because they continue to work even in low light conditions and at more extreme temperatures.
Did you know that bumblebees do so much good? Follow our news, we collect the most interesting facts for you!