Early maturing onion variety "Olina" with excellent yield and excellent taste
The Olina variety of winter onions will certainly please you with an early harvest. Among other early ripening onion varieties, this crop deserves special attention. It is distinguished by almost 100% ripening, excellent semi-sharp taste and ease of care.
Description of the variety
Onions can be grown either as an annual crop from seeds or as a biennial crop from sets.
Let us consider the main features of the variety in more detail.
Origin and development
Olina was bred by Czech breeders of the company AGROFIRMA MORAVOSEED.
It was included in the Russian state register in 1997. The originator of the variety is IP Alekshasova Marina Vitalievna.
Chemical composition, vitamins, beneficial properties
Onions have pronounced bactericidal properties. It is often used in the fight against colds and runny nose.
Chemical composition of Olin onions per 100 g:
- calcium – 31 mg;
- phosphorus – 58 mg;
- sodium – 18 mg;
- magnesium – 14 mg;
- potassium – 175 mg;
- cobalt – 0.8 mg;
- manganese – 0.23 mg;
- copper – 85 mcg;
- fluoride – 30 mcg.
Vitamins:
- B1 – 0.05 mg;
- B2 – 0.02 mg;
- B5 – 0.1 mg;
- B6 – 0.2 mg;
- B9 – 53 mcg;
- C – 10 mg;
- E – 0.2 mg.
Nutritional value per 100 g:
- calorie content – 41 kcal;
- proteins – 1.7 g;
- fats – 1.2 g;
- carbohydrates – 10.5 g;
- water – 87 g.
The vegetable also contains essential oils, sugars, as well as malic and citric acid.
Important! A fresh onion compress will help treat minor burns and minor wounds.
Ripening time and yield
The variety is early ripening.The period from sowing to harvest when grown from seeds is 67-96 days, and from sets – 60-87 days.
From 1 hectare of plantings, when grown from seeds, 67-150 centners of onions are obtained. If the variety is cultivated from sets, then about 300 centners are collected from 1 hectare, and from 1 sq. m – up to 3.5 kg.
Disease resistance
Olin's bow has immunity:
- to fusarium;
- yellow dwarfism;
- mosaic.
Most often, the variety is attacked by fungal diseases: powdery mildew and root rot.
Description of appearance
The bulbs have the following features:
- round shape, similar to a ball;
- outer scales are dense, hard, yellow or brown in color, two in number;
- inner scales are white, juicy;
- each bulb has 2-3 rudiments;
- weight – 50-100 g.
The onion pulp is dense, the taste is pleasant - semi-sharp.
Landing region
The variety can be cultivated in the Central and Middle Volga regions. This includes Bryansk, Vladimir, Ivanovo, Kaluga, Moscow, Ryazan, Smolensk, Tula regions, the Republic of Mordovia, Penza, Samara regions, as well as the Republic of Tatarstan and Ulyanovsk region.
The main advantages and disadvantages of the variety
Olina has many positive qualities:
- precocity;
- excellent taste characteristics;
- lack of arrows;
- a large percentage of ripening - 80-90%, and after ripening - 100%;
- resistance to many diseases.
One of the disadvantages of this variety is its short shelf life. If all conditions are met, the bulbs are stored for six months.
Features of planting and growing
The Olina variety can be planted in early spring or sowed before winter. We'll tell you how to do this in more detail.
Preparing for landing
Growing from sets is the most common method of obtaining tasty and juicy large-sized bulbs.
For planting, it is better to use bulbs of medium diameter - 1-3 cm.
Attention. Be sure to check the planting material for rot, damage or disease.
14 days before planting, it is advisable to warm the sets at a temperature of +40 ... + 45 ° C for at least 6-8 hours. Immediately before planting, the onions are soaked for 30 minutes in a solution of potassium permanganate, and then treated with any biofungicidal agent for 60-120 minutes.
Do not forget to observe crop rotation when growing crops. The best precursors for onions are the following plants:
- cereals, except oats;
- cabbage;
- mustard;
- rape;
- legumes
But the following are considered bad predecessors: oats, garlic, onions, cucumbers.
Soil requirements
The variety prefers light, nutritious soils with a neutral acidity level of 5.5 to 6.4. This indicator is measured using special strips that are sold in hardware departments. In case of excessive values, wood ash is added to the soil.
Acidic and dense soils are not suitable for Olina. Also, there should be no weed seeds in the soil, as they will inhibit the development of plants.
This vegetable does not like fresh manure. But if the soil is depleted and has little nutrition, then it is recommended to add rotted organic matter to it.
Dates, scheme and rules of planting
The variety is planted when the average temperature is within +5°C. If the sets are planted earlier, the bulbs will be small, and if planted late, the bulbs will not have time to germinate before the onset of frost.
The approximate planting date for the Central region is the end of October or the beginning of November. But if the variety is planted in the Urals or Siberia, then the dates are shifted by about a month, that is, September-October.
Planting can be done in the spring, but then the harvest will be meager.
The landing pattern is as follows:
- furrows are made in the garden bed, leaving 20-25 cm between them;
- The seedlings are planted at a distance of 4-5 cm from each other, planting depth is 1-2 cm;
- the plantings are sprinkled with earth, compacted, and then watered;
- after which the bed is mulched with dry grass or leaves;
It is important that the bed with crops is in a dry and unshaded place. Its height should be 15-20 cm.
Features of cultivation
It is better to place the area for onions at some elevation, this will allow the crop to receive more sunlight.
Olina is considered a frost-resistant variety - the most comfortable temperature for it will be from +12 to +16°C.
Important! In order for the bulbs to develop well, the variety needs a sufficient amount of moisture, otherwise the onions will be small and not juicy.
Try to protect the garden bed from strong winds and drafts. They negatively affect plants and their growth.
Nuances of care
When cultivating this variety, proper care is important. Onions need timely watering, weeding, and fertilization.
Watering mode
Be sure to maintain soil moisture balance. The soil should not be overdried or, conversely, waterlogged. After planting for 3-4 weeks, onions especially need moisture, so try not to let the soil dry out.
Plantings are watered once every 10 days, and in severe drought - once every 5-7 days. First, the soil is moistened to a depth of 10 cm, but as the bulbs grow, the volume of water is increased, wetting the soil to 20-25 cm. The frequency remains the same.
Attention. It is necessary to water the plantings in the morning or evening hours. Pour water nearby so as not to burn the onions.
Approximately 3-4 weeks before harvest, watering is stopped.
Loosening the soil and weeding
These measures are required when growing the Olina variety.
Weeding is carried out every 15-20 days. Weeds create additional moisture in the garden bed, which promotes the development of fungal diseases. If the areas with onions are not cleared of grass, then it grows with a thick and juicy neck. This makes drying difficult and shortens shelf life.
To provide the roots with nutrition and moisture, you need to periodically loosen the soil. In addition, this reduces the number of weeds and gives more space for the bulbs to grow.
To prevent a crust from forming, it is advisable to loosen the soil after each watering.
Top dressing
During the entire growing season, onions are fed at least three times.
Attention. When applying fertilizing, it is better not to use mixtures with nitrogen, as they lead to the growth of green mass and the bulbs will be small.
Fertilizers are applied according to the following scheme:
- Onions are fertilized for the first time 2-3 weeks after germination, when the plants reach a height of 2-3 cm. Urea is used for feeding. For 60 g of the drug, take 10 liters of water. The resulting solution is poured under the root.
- The second time is fed 21 days after the first time. To do this, use a composition prepared from 40 g of superphosphate, 10 g of potassium salt and 20 liters of water.
- The third time the onions are fertilized a month before the tops are laid down. Phosphorus-potassium preparations are used. They are introduced strictly according to the instructions.
The first feeding is needed to stimulate the roots and develop greenery. The second and third are for feeding the bulbs and increasing their mass.
Disease and pest control
Diseasesto which the variety is susceptible:
- Root rot. It is characterized by the appearance of yellow spots or dry areas on green feathers. The fight is carried out by preparing a solution. For 20 liters of water take 2 tbsp. l. copper sulfate and 2 tbsp. l. grated laundry soap.You can process it when the tops grow to 12 cm.
- Powdery mildew. Damages leaves and bulbs. To prevent and combat the disease, dusting plants and soil with wood ash or tobacco dust is used.
Among pests the most dangerous are:
- Onion fly. The insect lays larvae in onion plantings. Then they eat into the neck and stop its development. Methods of control: mulching or the drug “Fitoverm”.
- Nematodes. They look like small worms that feed on onion juice. To get rid of them, follow crop rotation and be sure to treat the seeds before planting.
- Thrips. Bulbs infected with thrips become wrinkled under the scaly layer. The harm they cause is palpable. You can notice their presence by yellowed tops. It starts to deteriorate from the top. Pest control is difficult, so prevention is of particular importance. Plant only tested and treated seed, observe crop rotation, and do not over-moisten the soil.
Remember that when growing onions, you cannot use chemicals. All treatments are carried out at least a month before harvest.
Harvest and storage
After the end of the growing season, harvesting begins.
How and when to collect
The variety is considered early ripening. Harvesting usually begins in late August or early September. You can determine the readiness of onions for harvesting by yellowed and dried tops.
It is advisable to choose a dry and sunny day. Vegetables are dug up with a shovel or carefully pulled out by hand. The harvested crop is dried in a warm place in the sun for a week.
Periodically turn the onions over to dry evenly.At the same time, roots and stem residues are removed.
Storage features and keeping quality of the variety
The dried and selected bulbs are placed for another week for re-drying in a heated room. After which the harvest is placed in wooden or plastic boxes in several layers. You can place the onions in nets or fabric bags.
Important! The variety has good keeping quality – 90-95%.
Store Olin onions in a dry, ventilated place at a temperature of 0 ... -1 ° C. Air humidity 75-90%. If all rules are followed, the onions can be stored for 6 months.
Difficulties in growing
When cultivating the variety, some problems may arise:
- the appearance of fungal diseases;
- mandatory check of soil moisture.
Make sure that the variety is not attacked by pests.
Advice from experienced gardeners
Onions love feeding in the form of yeast infusion. To do this, 50 g of yeast are diluted in 5 liters of water. The mixture is infused for 60 minutes. First, the plantings are watered with water, then with the resulting solution.
Some summer residents advise soaking the seedlings in a strong saline solution for 3 hours before planting. Take a tablespoon of salt per glass of water. Then the onion is placed in a solution of potassium permanganate.
Reviews
Many gardeners liked this variety. Its value lies in its early harvest, even bulbs and high ripening.
Yaroslav, Orel: “I came across the Olina variety by accident. I planted it before winter. In the spring, my bed with seedlings turned green. The harvest was good because I prepared the soil in the fall, fertilizing it with minerals.”
Evgenia, Saratov: “A friend recommended this bow to me. I decided to try planting and was right. His maturity is excellent. The taste is not spicy, we really liked it. For fertilizers, I used wood ash and potassium salt.”
Conclusion
Olin's onion has become a favorite among many farmers and gardeners. Its smooth, medium-sized bulbs are consistently popular. The variety is early ripening and has resistance to a number of diseases. If you follow the necessary agricultural techniques, getting a large harvest will not be difficult.