Proper feeding of onions is the key to high yields

Onions are among the most unpretentious garden crops. Nevertheless, to obtain good yields, onion beds must be fed with mineral and organic fertilizers.

Onion responsiveness to fertilizer

Onions when fertilizing immediately responds with enhanced growth. Most of all he “likes” minerals that have different effects on the development of onions. Nitrogen contributes to the growth of greens and an increase in the size of bulbs. Potash compounds intensify metabolic processes, provide resistance to temperature changes and improve the appearance of bulbs and their durability. Phosphorus increases onion resistance to disease and stimulates its growth.

Onion dressing calendar

Feeding onions should correspond to the stages of its development. It’s not easy to pinpoint the days and months of top dressing, since onion sowing can be carried out in different periods: in early spring (March), with soil warming up to 10–12 ° C (for the temperate zone - the second half of April) and with soil warming up to 15 ° C (beginning of May).

  • The first top dressing is carried out 14-16 days after planting, when the bulbs sprout and the feathers reach a height of 4-5 cm. Nitrogen fertilizers are used, which are scattered dry on the soil surface.
  • The second feeding is carried out 20-22 days after the first - phosphorus-potassium fertilizers are applied.
  • The third top dressing is carried out in the summer, when the bulb reaches a size of 5 cm. Use ash, superphosphate or Effekton.

Feeding onions with minerals

Mineral fertilizing helps to quickly saturate the onion with the necessary trace elements

Table: the use of mineral dressings

No. of top dressingType of fertilizerConsumptionApplication Method
1Ammonium nitrate2 tbsp. spoons per 10 l The introduction of a solution under the root
Nitrophoska2 tbsp. spoons per 10 l
Ideal and urea2 tbsp. spoons per 10 l
Vegeta and urea2 + 1 tbsp. spoons per 10 l
Urea4 tbsp. spoons per 10 l
2Nitrofoska or azofoska2 tbsp. spoons per 10 l
  1. Watering under the root or scattering of dry fertilizer (nitrofoska 40 g / m2, azofoska 5-10 g / m2) on the soil with subsequent incorporation.
  2. Foliar top dressing (nitrophosic only) after sunset.
Superphosphate and Potassium Sulphate2 + 1 tbsp. spoons per 10 l
Agricola2 teaspoons per 10 l
3Potassium salt and superphosphate1 teaspoon + 1/2 tbsp. spoons per 10 lRoot top dressing.
  1. 1 teaspoon per 10 l
  2. 1 teaspoon 5 l
  1. The introduction of a solution at the root, 50 ml \ m2
  2. Foliar top dressing at the stage of “turnip” formation.
Potassium chloride and superphosphate5 + 8 teaspoons per 10 lBasal watering.

Trace elements are introduced in the form of ready-made compositions, for example, Nano-Mineralis (contains about 10 elements). It is used for foliar top dressing when 2-3 leaves appear at the rate of 30-50 ml / ha (previously dissolved 100 g per bucket of water).

Organic onion dressing

Organic fertilizers are also a necessary component of onion nutrition.

In addition to organic matter, wood ash contains calcium, phosphorus, magnesium, and potassium. Make it before planting onions (0.5 kg per 1 m2). To feed and protect against pests, the beds are pollinated in the spring at the rate of 100 g / m2 or watered with infusion (0.25 kg of ash is poured with a bucket of hot water and insisted for 3 days).

Feeding from ash - video

From my experience of growing onions, I can note that ash helps to increase the onion's resistance to weather changes and stimulates the growth of strong feathers and large bulbs. It is very useful to enrich the ash with nettle-calendula infusion (I fill the bucket with three-quarters of chopped herbs and fill it with water, insist 3-5 days). In the finished infusion, I dissolve 100 g of ash and 10-15 g of laundry soap. I spray the mixture of plants in cloudy weather or after sunset. In addition to saturating the beds with microelements and improving the structure of the soil, the treatment helps to deter the onion fly and nematode, as well as to prevent powdery mildew.

Cooking nettle infusion - video

It is very useful for onions bird droppings (dissolved with water 1:20), make it when the feathers of the onions reach a length of 10 cm, and then repeat after 2 weeks. You can use rotted manure (1 kg is poured with 10 liters of water and insisted for a week, then diluted with water 1:10 and spent 10 l / m2).

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To feed onions from manure, you need to prepare a solution

The use of folk remedies for feeding onions

Folk remedies often work no worse than conventional fertilizers.

One of the effective folk remedies is baker's yeast. Yeast can be used both fresh and dry. On a bucket of water put 1 kg of fresh or 10 g of dry yeast and 40 g of sugar, and after the start of active fermentation, dilute with warm water in a ratio of 1: 5.

Before use, yeast yeast is diluted with water

It is recommended to add ash to the yeast infusion or introduce yeast after pollinating the soil with ash (200 g per 1 m2). Contribute to the rows one month after planting, and then twice more after 2 weeks.

Yeast as fertilizer - video

For spring onion feeding, you can use ammonia, which contributes to:

  • feather extension (dissolve 1 teaspoon in 1 liter of water);
  • anti-yellowing feathers (3 tablespoons in 10 liters of water);
  • head enlargement (1 tablespoon per 10 liters of water).

Top dressing is carried out not more than 1 time in 14-15 days.

Using ammonia to feed - video

Hydrogen peroxide is considered to be very effective, which is a growth stimulator: 3% peroxide (2 tablespoons) is dissolved in 1 liter of water and watering the beds once a week.

Hydrogen Peroxide Kills Pathogenic Bacteria in the Soil

To increase the yield of onions, egg shells consisting of 95% calcium can be used. Ground shells are added to the soil when planting onions (30 g / m2). During the formation of the head, liquid dressing is prepared (5 ground shells are poured with 3 liters of hot water and insisted for a week), diluted with water in a ratio of 1: 3 before application.

To feed onions, the eggshell must be chopped

Features of spring feeding of winter onions

Winter onions are fed according to a slightly different pattern. The first top dressing (with nitrogen) is carried out immediately when the spring feather appears. Ready-made preparations (Vegeta) or a mixture of superphosphate with urea and potassium chloride (proportion 3: 2: 1), dose 5 mg / m2, are suitable.

After 2-3 weeks, top dressing is repeated, this time with nitrophos (40 g per bucket of water) or Agricola-2. The flow rate of the solution is 5 l / m2.

The third top dressing is carried out when the bulbs reach a diameter of 3–3.5 cm. Dissolved in a bucket of water superphosphate (40–45 g) water the beds (10 l / m2).

The variety of options for feeding onions allows you to choose the best option. With proper selection and application of various mineral and organic fertilizers, you can get a decent harvest.


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