Content
Onion Sturon is one of the first most popular crop varieties. Gardeners often prefer it due to its excellent taste, high yield and unpretentiousness. In addition, the variety has increased resistance to severe frosts and diseases, and is ideal for long-term storage.
Origin story
The Sturon onion was bred by Dutch breeders and immediately after its appearance on the European market it performed well. In 2009, the variety was included in the State Register of Russia. The variety is recommended for cultivation in the Central region, as well as in the Western Siberian regions, and is recognized as one of the most productive for the conditions of the Russian Federation.
Description and characteristics of onions of the Sturon variety
Onion Sturon belongs to the mid-late universal varieties, the type is sharp. Juicy turnips and green feathers are used as food. The hybrid is endowed with pronounced selection characteristics, good rooting, and strong growth energy. The weight of one onion of the Sturon variety is approximately 100-150 g; with regular fertilization, the weight can reach 200 g. Onions have a sharp-sweet piquant taste with a classic aroma, and are a source of minerals and vitamins.
Appearance
The Sturon variety forms a round head, elongated at one end, covered with 4-5 thick light brown scales. The inside is juicy, the flesh is white, and may have a greenish tint. The leaves are tubular, bluish-green in color, and grow up to 0.5 m in height. As the Sturon onion grows, inflated flower arrows form on the feathers, which can rise above the ground up to 1.5 m. When fully opened, the inflorescence of the crop forms a snow-white ball. The fruit capsule contains 5-6 small black seeds.
Ripening time and yield
Sturon onions reach technical ripeness 100-130 days after emergence. With timely planting, favorable weather and climatic conditions, up to 35 kg of crops are harvested from a 1x0.5 m bed and up to 250 kg from one hundred square meters. Immediately after harvesting, the ripening rate of the variety is 75%, and at the end of ripening – 100%.
The high yield and excellent keeping quality of Sturon onions have been proven in practice by thousands of gardeners. The heads, collected in time and well dried, retain their beneficial properties and excellent taste for 6-8 months.
Resistance to diseases and pests
When the development of plant varietal characteristics was carried out, experts identified the resistance of the variety to diseases and pests as one of the dominant abilities. Therefore, the Sturon bow’s resistance to various misfortunes is quite high. But, despite the strong immunity, if the crop is poorly cared for, it can be susceptible to mosaic, neck rot, and downy mildew. Among insects, Sturon's enemies are considered to be the nematode and the secretive beetle, and in rare cases the onion fly.
To avoid troubles associated with diseases or insects, you should organize preventive crop treatments in a timely manner and follow the rules of crop rotation.
Composition and properties
The Sturon variety has a high sugar content, which is why its taste is quite pungent. According to test results, it has been proven that this onion contains many nutrients (iron, calcium, potassium) and vitamins (A, D, C, E, group B). Not only the bulb itself is useful, but also the feathers. In 100 g of vegetable there are 17.3 g of sugar, 14.6 g of dry matter and 7.5 mg of ascorbic acid.
Where is it used?
Bow Sturon for universal use. Suitable for all processing options and fresh consumption. The variety is widely used in cooking and added to homemade preparations. It is ideal as a complement to meat, fish, and salad dishes.The elongated shape of the head is practical to use, it is convenient to clean and cut.
Advantages and disadvantages
Sturon onion, like any other crop variety, has its pros and cons. They should be taken into account before planting.
Advantages:
- long shelf life;
- high productivity;
- large sizes;
- resistance to cold;
- excellent taste characteristics;
- ease of cutting.
Flaws:
- demands on soil composition;
- vulnerability to mosaic and powdery mildew.
Methods for planting Sturon onions
Typically, Sturon onions are grown as a two-year crop, that is, their care is divided into two annual cycles. The first involves sowing seeds for sowing, and the second means planting small turnips that grow into full-fledged bulbs over the summer. Each stage has its own agricultural technology features that must be taken into account.
Growing from seeds
Onion sets of the Sturon variety are grown from nigella. Sowing is usually carried out at the end of March, beginning of April, but the specific time of planting depends on the climate zone where the crop is grown. It is performed according to the following scheme:
- Planting material is soaked for two hours.
- They dig up the area, prepare the beds, make furrows up to 5 cm deep in them with an interval of 10 cm.
- Water the holes with warm water.
- After the water has gone into the ground, seeds are sown (about 90 pieces per 1 sq. m.).
- Cover with earth and lightly compact.
- Slightly sprouted sprouts are thinned out, leaving a distance of 2-3 cm between them.
The sets are harvested closer to August.
Planting seedlings in open ground in spring
To get a full crop harvest, Sturon seedlings can be planted in the spring. The procedure is performed in prepared, organic-rich fertile soil with a slightly alkaline reaction. Sandy loam and loam are better suited for this. A couple of weeks before planting, the site is dug up, a bucket of humus and azofoska (30 g per sq.m.) are added to the soil. If necessary, add dolomite flour, ash or lime. Despite the fact that the Sturon onion is a healthy variety, the planting material is treated before sowing. Place the turnips in a bag, sprinkle them with Karbofos, and leave for 24 hours. After this, the onion sets are kept for 30 minutes in a solution of potassium permanganate. Depending on the place of cultivation, Sturon is planted at the end of April, beginning of May in well-warmed soil. Choose an open, illuminated place with low humidity. First, furrows 5 cm deep are formed on the bed at a distance of 20 cm from each other. Wood ash or sand is poured into the bottom of the grooves. Plant the seedlings with the bottom down to a depth of 3 cm every 15 cm. Then the planting is covered with fertile soil and lightly compacted.
Planting Sturon onions before winter
Some gardeners plant Sturon onions before winter. This is especially practiced by residents of northern latitudes. Planting is carried out towards the end of September or at the beginning of October according to a scheme identical to spring sowing, with the exception of soaking the sets and pruning. Turnips for a full harvest are taken with dry husks and the smallest ones, and for greens - undergrown or overgrown specimens. Of the winter varieties, the Sturon onion is considered the most popular.
Caring for Sturon onions
The onion of the hybrid variety Sturon is unpretentious. In order to obtain large heads, plantings require basic agrotechnical work.
The crop needs watering mainly at the initial stage of growth and during the formation of the turnip. Half a month before harvest, moisturizing the onions is stopped.
Loosening the beds should be carried out 3-4 times a month. The first time the procedure is performed when seedlings appear, then as needed. When flower shoots grow, they are immediately removed, and the same is done with weeds.
Fertilize Sturon onions with mineral and organic compounds. When the green mass is actively growing, nitrogen is added to the soil (saltpeter, diluted manure or chicken droppings), a month later it is watered with complex fertilizers with microelements, and 30 days before harvesting it is fed with phosphorus-potassium preparations.
When the feathers of the Sturon onion turn yellow and fall off, it is time to harvest. The heads are removed from the ground using a fork, the remaining soil is shaken off, and they are kept in the sun for several hours to dry. Next, the onions are tied into bunches and hung or laid out in one layer in a dry, well-ventilated area. After the tops have dried, they are cut off, leaving a two-centimeter column, excess scales are removed, the roots of the plant are carefully trimmed and the crop is sent for storage. Sturon lies well at a temperature of +2-4 °C, humidity 80% or at +20 °C, humidity 60%.
Conclusion
Sturon onion is an excellent variety of vegetable crop, suitable for cultivation in any region of Russia. It is planted by both summer residents and large farms. Judging by numerous reviews, the plant has excellent taste and excellent shelf life, and is easy to grow. Sturon retains its beneficial qualities for a long time and can be used to prepare any dishes.