skip to Main Content
+4 0752.074.000 +4 0752.074.001 [email protected]

Onion storage in a controlled atmosphere

Onion storage

And onions can be stored both in warehouses with mechanized ventilation and in cold stores.

In warehouses with mechanical ventilation The Onion is kept in bulk with a height of 3-3. 5 m.and in this case certain storage periods are observed, the ventilation having different duration depending on the stage.

Thus, the first stage is drying, it lasts 8-10 days, the ventilation time is 18-20 hours a day. It is ventilated with dry air from the outside with a temperature of 6°C higher than onions and the actual humidity of 60-70%.

The cooling stage lasts from the moment of filling the cell, until the moment when the onion has reached the storage temperature. Ventilate at night for 8-12 hours out of 24.

The storage stage itself lasts between 3 and 6 months, the storage temperature being maintained around 0°c and the relative humidity of 75%.

Storing onions in cold stores can be done in bulk (in warehouses with floor ventilation) or in bins. The same technological stages of ventilation as in the case of mechanical ventilation storage are observed.

Onion Forum

Medium-ripening Golden onions are ideal for long-term storage (6-8 months. Growth period of 110-120 days. The leaves are dark green in color, covered with a layer of wax, which allows plants to withstand diseases. It has a rounded shape, Brown and tan outer color, weighing 100-170 g, 1/3 of the onions are located above the soil surface. Onions dry strongly, it is airtight and is well protected during storage. The internal appearance is thick, juicy and crispy. It has a pronounced spicy taste, suitable for drying and universal use. The average sowing rate is 4-5 kg / ha. The number of plants per hectare should be about 800,000 – 1,200,000. If large onions are desired, drilling is done rarely, with results of 600,000-800,000 plants per hectare. Harvest is better carried out, 80-90%, with drip irrigation. It is recommended to sow in rows of 6 and 8 (the distance between rows 27 cm). Proper planting is essential for a high yield. With an even row of plants, mechanical treatment in the field, harvesting and drying are facilitated. This allows you to get a high-quality product. Great attention should be paid to watering, the onions are very demanding to moisture. The largest amount of water is consumed by onions during the period of intensive growth. The yield is 45-70 t / ha.

Onion Fachir

Fachir-medium early golden onion. Vegetation-85-100 days. Variety grown annually. Green leaves with a wax coating. Onions are round, thick, large, weighing 130-170 g, leaves from the outside attractive yellow-golden color, inside – White, juicy, fatty and crispy, medium-spicy taste. Recommended for sowing directly in the soil, or by cuttings (cassette technology). Sowing rate of 4-5 kg / ha. The number of plants per hectare should be about 800,000 – 1,200,000. It is recommended to sow with a spacing of 30-45cm, and the distance between plants of 2.5 – 4.0 cm or 8.0-12.0 cm ( depending on what kind of products we want to get). With drip irrigation is recommended 8 and 6 in line (per meter should be 20-25 plants at a distance of 27 cm between rows). Proper sowing-it is essential for a high yield. With an even row of plants is facilitated mechanical treatment in the field, harvesting and drying. This allows to obtain a high-quality and uniform product. Particular attention should be paid to watering, the lack of moisture can be detrimental to the future harvest. Humidity during germination and early bulb formation should be at least 75-80%, and in the period of formation -70% of HB. The largest amount of water is consumed by onions in the intensive growth stage. Yields of Golden onions Fachir – 50-65 t / ha.

Onion Emir

Emir – medium early white onion. The growth period of 110-120 days allows harvesting and drying before the rains begin. Annual crop. Emir onions are strong and have economic growth potential. Onions of spherical shapes, compact, large in size, weighing 120-200 g, on the outside perfectly white. Inside – white, thick, juicy and crispy. Suitable for storage (up to 4-6 months). Recommended Emir for all regions, sown directly in the field, or by cuttings. The average sowing rate – 4-5 kg / ha. The number of plants per hectare should be about 600.000 -800.000 . Harvest is better carried out, 80-90%, with drip irrigation. It is recommended to sow in rows of 6 and 8 (the distance between rows 27 cm). Proper planting is essential for a high yield. With an even row of plants, mechanical treatment in the field, harvesting and drying are facilitated. This allows to obtain a high-quality product. Great attention should be paid to watering, the onions are very demanding to moisture. The largest amount of water is consumed by onions during the period of intensive growth. The yield is-50-80 t / ha.

Onion Pharaoh

Pharaoh-medium white onion variety. The growth period of 110-120 days after germination. Bulbs of medium quality Pharaoh grow in a year. Plants with leaves of dark green color, covered with a layer of wax. Onions are rounded, large in size, weighing 160-220 g perfectly white external color. with the inside – white, thick and juicy. Arw a strong taste, suitable for drying, and universal use. Productivity is 60-70 t / ha. Suitable for long-term storage (up to 6 months). Varieties of onions that can be grown in all regions from seeds directly in the field or by cuttings. Sowing rate of 4-5 kg / ha. The number of plants per hectare should be about 800,000-1,200,000. If large bulbs are desired, rare drilling is used, with 600,000-800,000 plants per hectare. Recommended sowing with row spacing of 30-45 cm and a distance of 2.5 – 4.0 cm, between plants, or 8.0-12.0 cm (depending on the type of products to be obtained). With drip irrigation is recommended 8 and 6 seeds per line (the distance between rows – 27 cm). Proper planting is essential for the success of the crop. With an even row of plants is facilitated mechanical treatment in the field, harvesting and drying. This allows you to get a high-quality product. Onions –it is moisture-loving, so it should be watered regularly. The largest amount of water consumed by onions is at the stage of intensive growth.

Onion Timur

Timur-early middle class, red onion. Growth period of 80-100 days. Plants with leaves of dark green color, covered with a layer of wax. Onions have an elongated rounded shape, large in size, weighing 140-200 g, with purple-red sheets in color. Interior of purple-pink color, juicy with medium-spicy taste. Recommended growth in all regions, with sowing directly in the field or by cuttings.For seedlings it is best to be sown in boxes, or in the drawer. These seedlings can tolerate transplantation and easily settle. Optimal sowing is done with an average of 4-5 kg / ha. The number of plants per hectare should be about 800,000 – 1,200,000, if large onions are desired, drilling is done rarely, with results of 600,000 – 800,000 plants per hectare. Harvest is better carried out, 80-90%, with drip irrigation. It is recommended to sow in rows of 6 and 8 (the distance between rows 27 cm). Correct planting is essential for a high yield. With an even row of plants, mechanical treatment in the field, harvesting and drying are facilitated. This allows to obtain a high-quality product. Great attention should be paid to watering, the onions are very demanding to moisture. The largest amount of water is consumed by onions during the period of intensive growth. The yield is – 50-70 t / ha. Shelf life of onions is 6-7 months.

Storage of onions for a shorter period of time in an artificial space

Harvesting:

– if the leaves of the onion begin to turn yellow and wither, it means that the plant has reached maturity and the time of harvesting is approaching. The ripening process can be accelerated by laying the leaves on the ground. After 10-15 days can harvest;

– onion harvesting is preferably done on a sunny day, but in no case when the Earth is very wet;

– remove the onion from the ground with a fork, but carefully not to hurt the bulbs;

Preparation for winter

– dry the onions for several days, exposing them to the sun with all the leaves and turning them frequently;

– while they are still wet, onions are not allowed to touch, because a touch how small makes them sprout and rot;

– if you can dry the onions in the sun, you can do this in a warm, dry and well-ventilated place;

Winter storage

– before winter storage, cut the tail of the onion, keeping only a few millimeters of the leaves. After drying and cutting, onions are prepared for wintering, they can be placed in crates;

– keep for the winter only perfectly healthy onions;

– the best storage conditions for onions are in well-ventilated places with low humidity and positive temperatures, but not exceeding 15°C.

English EN French FR Romanian RO Russian RU