To obtain healthy large bulbs, fertilization must be carried out during the growing season. It is important, depending on the season, to select the most suitable type of feeding.
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Soil preparation
An area with good lighting is chosen for planting onions. This culture grows well on sandy loam with moderate moisture. The best predecessors are zucchini, cucumbers. You can choose beds after potatoes, tomatoes, legumes.
In autumn, under deep digging, wood ash is distributed over the site, combined with crushed peat and rotted manure in a ratio of 1: 1: 2. Phosphate-potassium fertilizers can be used. Application rate - 30-50 g / sq. m.
If it is necessary to reduce the acidity of the soil, use dolomite flour, crushed chalk or lime fluff. But after such processing, onions can be grown in this place no earlier than a year later.
What to bring in early summer
It is necessary to feed the onion sets for the first time 14 days after planting in the garden. Plants require more nitrogen at this stage.
Suitable options:
- Placed in a tank 1 tbsp. l. urea. Additionally, 200 ml of liquid manure is poured in. Add 10 L of water with stirring. Consumption rate - 3 l / 1 m2. Manure can be replaced with chicken droppings.
- Potassium chloride (20 g) combined with ammonium nitrate (30 g) and superphosphate (40 g) is dissolved in 10 liters of settled water. Consumption rate - 2 l / 1 m2.
- Poured into a container with 10 liters of settled water 3 tbsp. l. pharmacy ammonia. Consumption rate - 1-2 l / 1 m2.
They choose calm weather without rain for feeding. It is recommended to apply fertilizers in the evening. Pour the nutrient liquid onto the soil, protecting the leaves from droplets. After feeding, the bed is watered. The soil then needs to be loosened.
Nitrogen deficiency is evidenced by yellowing of onion feathers, which become thinner and grow poorly. An excess of this element is also dangerous, causing the rapid development of greenery, and the bulbs will be small at the same time. Therefore, it is important to correctly observe the optimal proportions.
Re-feeding
The next feeding should be practiced after 20 days. This step requires more potassium with phosphorus. These connections facilitate the development of large heads.
Liquid feeding options (the norm is 5 l / 1 m2):
- Potassium chloride is mixed with ammonium nitrate - 30 g each. 60 g of superphosphate are added. With active stirring, pour into a container with 10 liters of water.
- Dilute potassium sulfate (10 g) and twice the amount of superphosphate in 10 liters of settled water. Watering the onion beds is practiced when all the grains of fertilizer are completely dissolved.
- Potassium monophosphate can be used. A 10-liter container of water will require 10 g of fertilizer.
- Saturates the soil with potassium ash. Collect her glass and pour 10 liters of water. Maintain with systematic stirring for 48 hours.
- Cut the nettle greens. Put it in a bucket, filling it by 1/3 of the volume. Pour in 3 liters of water and put 1 tbsp. l. dry yeast. After 3-day infusion, the composition is diluted with clean water to obtain 9-10 liters.
Third feeding - is it necessary or not
Re-introduction of nutritious varieties is required only on depleted soil. Due to the lack of useful elements, it will not be possible to get large bulbs.
Begin the procedure, maintaining a two-week interval after completing 2 feeding. The phosphorus-potassium variety is used. The application rate is also 5 l / 1 m2.
You cannot carry out top dressing if the feather has already laid down on the ground. This is an indicator of the ripening of the bulbs.
When growing onions, complex care is not required. But in order to obtain high-quality healthy bulbs of large size, it is important to feed on time.
Do you know how to feed onions to get large heads?
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