In order to get a rich harvest of onions, it is necessary to choose the right seed, find a good place to grow, plant and provide proper care for the crop. Fertilization is an important and indispensable point of care. Feeding onions in open field depends on the season, type of plant and some other factors. There are many subtleties and tricks that can be found below in the article.
Top dressing onions in spring
In spring, onions need nitrogen most of all, in any case, in early spring, when the green mass is growing. Therefore, first of all at this time will be useful any mineral and organic substances containing abundance of nitrogen. This category includes: sodium nitrate, urea, ammonium sulfate, ammonium nitrate, bird droppings.
Photo of onions in the ground
Important! In order to feed the onions efficiently, it must be done after rain or watering.
Use such fertilizers according to the instructions or recipes, which will be described in the subsequent paragraphs. During this period, it is also possible to mix phosphorus into fertilizers, but only in small amounts, therefore complex mineral fertilizers are used extremely rarely.
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Starting from late spring and throughout the summer, potash and phosphate fertilizers are added under the onions. Nitrogen is needed only under the condition that the onions are grown on the feather - it will stimulate the growth of green mass. If you want to grow a turnip, then nitrogen can harm more than help.
Photo phosphate potassium fertilizer
Potassium is very important during the formation of the onion head, and phosphorus is simply necessary for the active growth of the plant and increase resistance to various diseases. Fertilizers with these substances and used for fertilizer. These can be minerals, complex fertilizers, organic matter (humus, wood ash), herbal infusions.
If next year you plan to plant onions again, you need to prepare the soil in autumn. The earth is dug up on a full bayonet of a shovel and fresh manure is brought into it (5 kg per square meter). You can use chicken droppings as an alternative. It is diluted with water in the ratio of 1: 5 and poured over the excavated earth. Of minerals, it does not hurt to add 20-30 g of urea and superphosphate to manure.
Fertilizers for onions per head
To select a suitable fertilizer, it is important to consider not only the time of feeding, but also the type of crop. Onions grown for turnip needs special care. Here it is important not only the abundance of space for the development of the root or loose soil, watering, but also fertilizing. Spend them on average 3 times.
Photo fertilizer Agricola 2 for onions and garlic
The first is 2 weeks after the emergence of shoots or immediately after the appearance of shoots.
The second time - 2 weeks after the first.
Third time. When the turnip formation begins, it will reach a size of 3-4 cm.
Important! If onions are grown to produce a head, then yellowing of the tops in the last period of ripening of the culture is a normal process and no additional dressings are needed here!
It is extremely important to use well-fertilized soil for planting such onions. Of the fertilizers for the development of turnips, minerals (including the finished fertilizer "Agricola-2") or organic matter are well suited, sometimes they are interfered with together. Among the most common substances are mullein, chicken manure, wood ash.
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To sevok grew quickly, you need to take care of the correct fertilizers. The first feeding of onions in the open field is done before planting the seedlings - in the fall. The land is fertilized with manure or humus with minerals. During planting, you can add a tablespoon of urea and 2 tablespoons of superphosphate to each square of the plantings so that the onions will take root faster.
Important! Do not make fresh manure under the onions. This can cause burns or ruin the taste of the final product.
After the start of growth, the culture is fed 2-3 times as necessary, as described in the previous paragraph.
How to fertilize a bow on a feather?
Land for growing onions on a feather is fed before planting and during the growth of the crop. It is important to note that it is best to use organic or popular recipes for the development of green mass. Minerals do not have such a positive effect.
Photo dressing mixed fertilizers
You can use the infusion of mullein, ammonia, bird droppings, herbal infusions, etc. The number of dressings depends on the fertility of the soil and how the culture grows. If greens inhibits the development - you need to feed. But on average per season, green onions are fed approximately 2-3 times.
Feeding onions folk and organic means
Folk recipes feedings are usually used for onions that are grown on the feather. Since greens are consumed immediately, fertilizers are not all fertilized with chemicals, and there will be no harm from folk substances.
Photo feeding onions folk remedies
Korovyak - known and effective tool. The solution of mullein is diluted with water in a ratio of 1:12 and watering the beds. If you want to enhance the effect of the product, you can add 30 g of ammonium nitrate to the solution.
Wood ash is a substance rich in minerals. The easiest method to use it is to scatter around the ground around the bow. As watering, precipitation, nutrients along with the ashes will penetrate into the ground, and feed the plant.
Important! It is recommended to alternate the addition of mullein with alternate ash watering.
If time permits, you can prepare the ash solution. On a teaspoon of ash is taken a liter of water. This mixture, after thorough mixing, watering the beds.
500 g of bread crumb poured into 10 liters of warm water. 500 g of cut, fresh grass and 500 g of fresh yeast are also added there. The solution is covered with a lid and leave to infuse for 2 days. Such onions feeding can be used instead of watering.
Important! In addition to the fact that wood ash is considered to be a very useful fertilizer, it also repels many pests and prevents the development of diseases.
Chicken droppings are often used instead of mullein. At 750 g of litter, you need to take 5 liters of water, mix, leave for 2-3 days to ferment. Then it is diluted with water in a ratio of 1: 2 or even 1: 3 and used for watering. This fertilizer can be used 1-2 times per season.
Herbal infusion suitable for the second feeding. Per kilogram of chopped herbs you need to take a bucket of water and insist a week. After that, water the plants, diluting each liter of infusion with a liter of plain water.
Feeding onions with liquid ammonia
The book of folk recipes includes another unusual method of feeding a useful culture. Ammonia contains a lot of nitrogen, and also deters most pests that love onions. This remedy is used only when the onion has an acute nitrogen deficiency - the feathers turn yellow quickly and for no reason. 3 tablespoons of ammonia take 10 liters of water and mix well. The resulting composition is poured onions under the root.
It is important to note that such a tool is best cooked in a respiratory mask, because sal ammoniac has a pungent smell. It is recommended to use such a solution in the evening, therefore, it is prepared in the evening, because after cooking, the nitrogen gradually begins to evaporate.
Specialized fertilizers for onions
Mineral fertilizers can be fed onions from the moment of emergence, but only by carefully observing the concentration. Among the popular mineral preparations emit: ammonium nitrate, superphosphate, urea, potassium sulfate, sodium, calcium and potassium nitrate, ammophos, nitroammophoska, potassium chloride, ammonium sulfate, etc. Some mineral fertilizer solutions can be studied below.
2 weeks after germination, it is recommended to apply nitrogen fertilizers. 15 g of ammonium nitrate interfere with 20 g of superphosphate and pour into 5 liters of water. You can optionally add 10 g of potassium chloride.
14 days after the first feeding, potassium phosphate preparations are applied. 25 g of superphosphate and potassium sulfate is poured into 10 liters of distilled, warm water and mixed well. The resulting solution can be watered culture. If the growth of greenery stopped at this time, you can make ammonium nitrate in a small concentration.
For the second feeding of onions, it is also recommended to use a solution from a tablespoon of nitrophoska, diluted in 5 liters of warm water.
Important! Many mineral fertilizers acidify the soil, therefore with regular use of them it is necessary to lower the acidity of the earth from time to time.
Approximately in July, when the onion head begins to form (if the species is grown), it is worthwhile to feed the plantings with potash-phosphorus fertilizers. Use in this case, dry minerals - not diluted in water. They are brought into the ground according to the instructions after rain or watering. As they dissolve, they will slowly feed the culture.
If you want to make liquid fertilizers, but not dry, you can take 10 g of superphosphate, 5 g of potassium salt and mix with 5 liters of water - watered under the root.
Feeding onions with urea
Urea is a mineral fertilizer known to almost any gardener, even a beginner. Urea helps many plants. It is usually used in the first growing season, when the plant grows green mass. In the case of onions, it will also be very useful, but only if you use it correctly.
Half a tablespoon of urea is taken into a glass of slurry and it all gets mixed up in 5 liters of water.
2 tbsp. spoons of the drug "Ideal" interfere with 2 tablespoons of urea and pour in 10 liters of water. After the preparations are stirred, the substance is poured over the earth around the onions. Water is not very "thick", because the abundance of nitrogen can also harm.
These onion feeding are very useful as first when the green mass is just beginning to form.
Adhering to the simple rules of onion feeding, you can get a big harvest. The main thing is just to apply fertilizer in time for a particular type of onion, as well as to use solutions in the correct concentration, regardless of whether they are organic or mineral.