Content
Due to its high yield and strong immunity, Dutch onions are popular among gardeners and vegetable growers. All varieties are undemanding, use conventional agricultural technology, and rarely get sick. The culture is grown for feathers, consumed fresh, and used for winter preparations. Planting material comes to Russia from the Netherlands. It undergoes strict fractional calibration using special equipment.
Advantages and disadvantages
Holland is rightfully considered a leader in terms of breeding and supplying onion sets to the seed market. The crop is represented by a variety of early, medium and late ripening varieties. Planting material can be purchased at any specialized store. A certified product guarantees a harvest that corresponds to the varietal characteristics.
Pros:
- variety of varieties (according to ripening period);
- you can choose for any taste (spicy or sweet), all vegetables are characterized by high nutritional value;
- stable yield;
- possibility of mechanized cleaning;
- suitable for planting in spring and before winter;
- frost resistance allows you to grow the crop in cold climates;
- versatility in use;
- the plant is stress-resistant, calmly reacts to weather changes;
- good immunity, seedlings practically do not get sick, they are rarely affected by pests;
- increased percentage of germination (95-98%);
- no tendency to flower or bolt;
- the crop can withstand transportation and retains its presentation for a long time;
- does not require special agricultural technology.
Minuses:
- You cannot obtain planting material yourself.
Description and photos of the best varieties of Dutch onions
When choosing Dutch onions, take into account the time of planting - in spring or autumn, and how they will be cultivated - open or in a greenhouse. Be sure to find out whether it is suitable for the weather conditions of the region. The names and descriptions of the most popular winter varieties of onion sets of Dutch selection are presented below.
Radar
Radar is a salad, sweet Dutch variety that has been on the seed market for more than 20 years. Mid-season, suitable for any planting time. Cold-resistant, with stable yield: from 1m2 take up to 7 kg. Cultivation is possible in all regions except the Far North; here Dutch onions are planted in greenhouses. The radar is universal in use.
What it looks like:
- plant height – 35 cm;
- leaves are tubular, numerous, dark green, glossy;
- The shape of the onion is round, slightly compressed at the bottom and top, weighing 150-200 g;
- the upper membranous structure is hard, dark yellow, the inner is juicy, white with a greenish tint;
- the neck is short and thin.
The shelf life of the Dutch harvest is up to eight months.
Shakespeare
Shakespeare is a Dutch onion variety that was bred specifically for planting before winter. Early ripening culture. In warm climates, the harvest is harvested at the end of May, in temperate climates - in mid-June. The taste is semi-sweet, the Dutch variety is intended to be used fresh and does not last long. It is not suitable as an option for harvesting for future use.
Dutch Shakespeare onions are grown commercially for sale. Heads of medium weight – 100-110 g, dense. The scales are hard, golden, the inner layers are juicy, white with a bluish tint. The shooter does not give, it goes to the pen. Productivity per 1 m² – 5-6 kg.
Centurion
Centurion is a Dutch mid-early onion that ripens in three months. Suitable for winter planting in the subtropical zone. In the Central, Middle Zone and continental-temperate climates, they are sown only in spring. Yield indicator – 4.5-5 kg per 1 m2, fruiting is stable. The Dutch variety is not afraid of sudden drops in temperature and drought. Powdery mildew may occur during the rainy season. Onions are resistant to other infections characteristic of the crop.
Characteristic:
- leaves are 25-30 cm high, not numerous, with a rigid structure, they become feathers only at the beginning of growth;
- broadly ovoid bulb, weight – 100-150 g;
- scales tightly pressed, dark brown;
- the inside is juicy, sharp in taste, white;
- the neck is thick and long.
They are grown in home gardens and farm fields.
Hercules
Hercules is a mid-early variety.If planted before winter, it ripens in 2.5 months. Frost-resistant, stress-resistant, not afraid of cold and hot seasons. Productivity is high: from 1m2 take up to 10 kg of vegetables. Hercules is a leader in this parameter among other varieties of Dutch selection.
The taste is slightly pungent, with a pronounced odor. The structure of the leaves is delicate, suitable for feathers. Grows up to 30 cm. The turnip is oval - weight 150-200 g. The internal structure is dense and juicy. The neck is thin and short. The variety does not get sick and is not affected by pests.
Sturon
Sturon is a variety created on the basis of the popular Dutch onion Stuttgarter Riesen. This is an improved form in terms of frost resistance and immunity to infections. Grows in cold and warm climates. The variety is common in Siberia and the Urals. Sturon is planted before winter and spring.
Characteristic:
- leaf height – 35 cm, feathers dark green, with a waxy coating, rigid structure;
- oval bulb, weight – 180-200 g;
- scales light brown with longitudinal stripes;
- the taste is sharp, the purpose is table, the inner layers are densely packed. The vegetable is juicy and white.
Transportability is good. Shelf life is up to eight months.
Red Baron
A mid-early salad variety with a pleasant taste and mild aroma. Quite popular in Russia. In 1998 it was entered into the State Register. Universal use, consumed fresh, grown for feathers, included in all culinary recipes. Cultivated on a production scale and on private plots in all climatic zones (except for the territory of risky farming).
Planted in the south before winter, in colder regions - in spring.The bulbs are round, their weight is 90-100 g. The scales are bright burgundy with a purple tint. The internal structure is pink, with red fragments, juicy, semi-sharp. Shelf life – 10 months.
How to plant Dutch onion sets
All varieties are grown as annuals. Holland supplies only hybrid forms of the crop; they rarely produce seeds. Even if you managed to collect and sow them, the result will be unpredictable. It will not be possible to grow vegetables with the characteristics of the parent plant.
When to Plant Dutch Onions
Sowing is carried out in spring or late autumn. At the beginning of the season, you can begin work when the soil warms up to +12 0C. For warm climates - approximately in mid-April, in temperate zones - in early May. Mid-season or late varieties are sown at this time. The sevok used is large, with a diameter of 1.5-2.5 cm.
For planting before winter, choose early or medium varieties of Dutch onions. If the seedlings are of different sizes, they are sorted and small specimens with a diameter of up to 1 cm are placed in the bed. Such material will not be preserved until the beginning of the growing season, it will become dry and lose its germination capacity. Work is carried out in the second half of October.
Site selection and soil preparation
Dutch onions are demanding of light. It develops poorly in the shade, the green mass becomes thin, elongated, pale, the turnip is small and loose. An open sunny area is allocated for the culture. The place should be dry, the soil fertile, with a neutral reaction.
For spring planting, the bed is prepared in the fall:
- Remove all plant debris and dig up.
- Spray the surface with copper sulfate.
- Before frost, water generously.
- In winter, snow is removed from the site so that the soil freezes as much as possible and wintering pests die.
In April, the bed is loosened, raised by about 20 cm, compost, peat, urea and superphosphate are added.
If Dutch onions are planted in October:
- They dig up the place and remove the weeds by the roots.
- Disinfect with “Homom” (copper chloride).
- Peat, humus, perphosphate, potassium sulfate, and wood ash are incorporated into the soil.
After sowing, the area is covered with sawdust or peat with a layer of 3-5 cm so that the Dutch onions do not freeze. In spring, the mulch is removed for better germination.
Preparation of planting material
Before sowing, they sort and reject weak, dry bulbs. As a rule, there is very little illiquid material. Dutch selection onions are of good quality and have virtually no waste. The sets are heated for 8-10 hours at a temperature of +400C. Cut the onion to the shoulders and dip it in the Energen solution for better germination.
Disembarkation scheme
Bed markings:
- At a distance of 25 cm, longitudinal furrows with a depth of 4 cm are made.
- Water with warm water.
- The onions are distributed at a distance of 8 cm.
Cover so that there is a layer of substrate no higher than 2.5 cm above the hangers. When planted deeply, the ripening of the Dutch onions will be delayed, and the turnip will be deformed. With slight immersion in the soil, the material will be exposed, growth will stop, and in hot weather the seedlings may dry out and not sprout.
Rules of care
After the sprouts appear, look at the planting density. If necessary, it is thinned out to maintain at least 10 cm between nests.
Growing Dutch onions:
- In the absence of precipitation in the first 2.5 months, water 6-8 liters of water at the root every week. Soil moisture is stopped three weeks before harvesting.
- Weed the bed with Dutch onions as weeds appear.
- When the leaves grow to 15 cm long, make a solution of copper oxychloride and spray the tops.
- The Dutch onions are fed at the loop stage with Energen. After 10 days, potassium sulfate and urea are added. At the time of formation of the heads, the Dutch vegetable is fertilized with organic matter, and after two weeks, “Agricola for onions and garlic” is added by sprinkling.
14 days before harvesting, all feeding is stopped.
Conclusion
Dutch onions are a cold-resistant species with strong immunity. It can be grown in any climate zone in an open or closed way. Most varieties are suitable for autumn planting both in the south and in temperate climates. Onions are characterized by high nutritional value and stable fruiting. The fruits are transportable, universal in use, and can be stored for a long time.
Reviews of the best varieties of Dutch onions