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Holland is a small country, so over the years they have come up with methods of obtaining large yields from small territories. Continuous strawberry cultivation technology gained recognition all over the world.
Collecting fresh strawberries all year round is the cherished dream of every lover of delicious berries. And for a hardworking gardener, it is also a great way to earn money.
One of the most effective ways to continuously grow this berry is the Dutch method... Although in practice this is a rather laborious process, it pays off with tangible profits.
The essence of technology
Naturally, in order to get berries in winter, they are grown indoors. If you need a little strawberries, just in order to enrich the table with vitamins, then you can get by with a few bushes. They are planted in pots on a windowsill or on a closed balcony. For sale, when a large amount of berries is needed, strawberries are bred in a greenhouse.
Dutch technology for growing strawberries in a greenhouse, consists in continuous planting of fresh seedlings, at intervals of a month and a half. Plants from which the berries were harvested are thrown away or used for planting in open ground.
In order to force the seedlings to bloom and bear fruit, before planting they are sent to "hibernation" for a while: they are placed in a refrigerator, basement or any other cool place. The temperature there should not drop below -2 degrees. Here strawberry bushes can be up to 9 months. If necessary, the plants are gradually transplanted into the greenhouse.
Strawberries in greenhouses grows in small containers: pots (about 70 cm high and 18-20 cm in diameter), containers or plastic bags. The bags are popular with farmers as they are the cheapest material and save space as they can be stacked vertically.
In this case, the plants are planted over each other in a checkerboard pattern. However, if seedlings are placed vertically, then it is necessary that the walls of the greenhouse must be transparent in order to provide the bushes with natural light as much as possible.
Abroad, they are gradually abandoning plastic bags, citing the fact that plant root can rot, and the bush dies prematurely. Recently, potted strawberries are increasingly being grown there. This container can be reused many times after washing and disinfection. In addition, in this case, it is easier to organize watering, and use the water from the pallets again.
A useful video about the intricacies of growing strawberries using the Dutch method, and also see how a greenhouse is organized using this technology on a personal plot:
For growing strawberries in a greenhouse or other room, it is advisable to use self-pollinated varieties. Otherwise the pollination process will have to be done by yourself with a small brush. There is another option: to place a hive with bees in a greenhouse.
Most modern varieties are self-pollinating. You only need to choose the most suitable one. It is recommended to plant strawberries from the category of neutral daylight hours.
The advantage of this choice is that such seedlings mature early and does not strongly depend on the length of daylight hours. The most popular varieties are Brighton, Elizabeth II, Crown, Moscow delicacy, Queen Elizabeth, Red Rich, Selva, Honey.
Since growing strawberries according to the Dutch method requires constant updating planting material, then the question arises where to get it in such an amount. Of course, seedlings can be bought from various agricultural firms. However, it will be cheaper to dilute it yourself.
You can grow seedlings in the country... For this, a separate area is allocated to which mineral and organic fertilizers are applied. In spring, strawberry bushes are planted, preferably on ridges about a meter wide.
IMPORTANT! First year with mother plant it is imperative to remove the mustache and peduncles!
The next year, each bush gives about 20 whiskers with small rosettes, which are immediately rooted. In October, young plants need to be dug up and carefully cleaned of the remnants of the earth. Then they should be divided into three piles:
- category A: diameter up to 15 mm, there are two peduncles;
- category A +: diameter about 20 mm, up to 4 peduncles;
- category A + extra: diameter over 20 mm, more than 4 peduncles.
Sorting helps determine the future strawberry harvest. The lowest grade gives close to 150 gr. from a bush, medium - 200 gr., and the highest - about 400 gr.
The seedling containers are filled with the substrate. It can be perlite, rock wool or coconut fiber. Most often, disinfected natural soil or peat mixed with sand and perlite is used, which helps to ventilate the soil.
Soil from the garden categorically you can't take! Likewise, organic feeding is prohibited! All this is done to avoid the spread of diseases and the appearance of pests and weeds. Regularly also plants should be fed mineral fertilizers.
To grow strawberries using Dutch technology in a greenhouse all year round, certain conditions are required. Insofar as strawberries ripen well only with a sufficient amount of heat and light, it is advisable to organize an appropriate regime in the greenhouse. The recommended average temperature is 18-25 degrees. Before tying the buds, the temperature should be below 21 degrees, then it is increased to a maximum of 28 degrees. The temperature can be maintained automatically or by airing the room.
Air humidity should be at the level of 70-80%. For this, sprayers are used, however, during the flowering of the plant, you should be carefulso that water does not get on the flowers. In this case, it is recommended to simply spray into the air.
The minimum daylight hours for strawberries is 8 hours. However, it is better to extend it to 15-16 hours. In this case, the fruits can be harvested in a month, which is two weeks faster than with the first option. For this, in addition to natural light plants should illuminate artificially.
Water the seedlings daily, while making sure that no water gets on the leaves or flowers. It is best to organize a drip irrigation system for this purpose.
It is also necessary control soil acidity... She should always be neutral.
Of course, in order to please your loved ones with a delicious juicy berry for the New Year, you need to put in a lot of work. But if you follow the methodology and fulfill all the requirements, then you can not only diversify your menu with a useful berry in the frosty season, but also make great money on it, because strawberries in winter are exoticwhich is expensive.