Why does the onion turn yellow in the garden, and what to do

Onions are a garden crop that can be grown not only by a professional vegetable grower, but also by any novice summer resident on his personal plot. In addition to adding feathers and root crops to various culinary products, green onions are used as a highly effective antibacterial agent, both for the human body and for plantings adjacent to onions. However, even when growing such a simple, from the point of view of agrotechnical care, fruit and vegetable crops, certain difficulties may arise. One of the most common problems when growing onions in the garden is that the feather starts to turn yellow. The reasons why the onion turns yellow in the garden will be listed below, what to do to stop the development of this disorder in the plant's body.

Benefits of planting onions before winter

Planting onion plantings in late autumn has many advantages:

1. Less need for time spent for carrying out agrotechnical care measures;
2. The germination period of winter onions is shorter than that of spring onions by an average of 3 weeks, due to which the beginning of the harvesting of root crops, as well as the cutting of greens, is carried out when the month of June ends, at the end of which any vegetable crop can be planted on the ridge;
3. The planted small-sized planting will not shoot;
4. Planting material, presented in the form of large bulbs, despite the shooting, will provide abundant germination of greenery at the beginning of the horticultural season - the transition to this stage of growth is possible as early as May;

5. The plant does not undergo the formation of breeding centers of the onion fly;
6. Winter onions do not get sick with gray rot;
7. There is no need to treat plantings from powdery mildew;
8. Due to the fact that it is not necessary to remove weeds in winter, it becomes easier to care for onion plantations;
9. Winter onions yield more abundant crops than bulbs, which are planted in spring;
10. When planting seedlings before winter, the quality of future fruits improves;
11. Winter onion varieties, especially small ones, are suitable for long-term storage.

Reasons why onion feathers turn yellow

Planting onions before winter

The list of factors contributing to the occurrence of such a phenomenon as a yellowed feather on onion plantings includes:

1. Infection with any disease;
2. The appearance of parasitic foci;
3. Deficiency of nutrients;
4. Errors in farming techniques.

Infection with diseases and pests

The appearance of onion fly larvae on the plant is considered one of the most common factors that lead to the color of the onion acquiring a yellow tint. The place of damage to this pest is the bulb. You can diagnose this problem by examining the consistency of the onion root crop - in this case, it will be sluggish to the touch. To check the bulb, it is recommended to select and cut the sluggish root crop of the plant with the most yellowed feather part - in the presence of larvae, it is necessary to deal with this problem.

It is possible to prevent the appearance of onion fly larvae by observing the rules of crop rotation and planting planting material as early as possible - before the parasitic flies appear.

The most active distribution of the onion fly occurs when dry weather is established. In addition to the bulb itself, the inner feathery part of the plant can serve as a place for laying the larvae. Drying of the feather in this case is directed downward from the top.

The next reason may be damage to the intra-stem part of the plant with onion nematode - small-sized white worms that absorb useful juices from the planting material. Their presence in onion plantings can also contribute to the fact that the feather part begins to turn yellow.

Onion fly larvae

Often, winter onions begin to turn yellow due to rot or rust. The appearance of rust is characterized by the presence of light yellow convex spots on the drying feathers, after which they completely fade. The place of defeat is the lower feather part of the onion planting.

Deficiency of nutrients

Due to the deficiency of such a trace element, necessary for onions, as nitrogen, most often they undergo yellowing:

• bulb onions;
• batun;
• leek;
• shnitt.

You can determine the lack of nitrogen by yellowing in the lower feather part.

The result of a deficiency of this microelement is the appearance of the following symptoms of deviations in the healthy development of the onion plant:

1. Stopping the growth of greenery;
2. Drying of the feather part;
3. Fall of withered feathers.

The reason for nitrogen deficiency may be the establishment of dry weather, since nitrogen can enter the soil only in dissolved form. However, in the excessively rainy summer season, nitrogen substances move into the depths of the soil, which makes it difficult for this microelement to contact the root system of the onion plant.

Errors in agricultural care

The most common mistakes when caring for onions that are planted in winter are incorrect watering. You need to know when the onion turns yellow, how to water and feed. Lack of moisture causes the onion tip to turn yellow and dry. This problem is especially relevant when a plant passes into the stage of active growing of greenery.

The onions turn yellow

How to deal with yellowing onions

It is possible to stop the yellowing process of onion feathers, depending on the specific reason for the appearance of this problem, in one of the existing ways:

1. Chemical treatment;
2. Making products based on folk recipes;
3. The introduction of the necessary mineral fertilizers.

Watering onions when yellowing

When fighting the reproduction of onion flies, planting material should be watered with a saline solution, which is made by diluting 150 grams of salt in a bucket of water. When watering the soil using this essence, you should avoid the ingress of salty liquid on the planting material.

Watering with chemicals consists in adding 50 grams of karbofos per liter of water. Irrigation is carried out by spraying.

Saline solution is an effective remedy

How to feed onions from yellowing

Since nitrogen deficiency is often the reason for the appearance of yellowness on onions, in order to avoid the problem of yellowing, before planting onions on an open ridge, it is necessary to add a rotted mullein to the soil.A solution of fresh manure is made at the rate of half a bucket of appropriate organic raw materials for 5 buckets of water, after which it is infused for 10 days for fermentation. In view of the unpleasant smell of such fertilizer, it is recommended to place it in the most remote place of the summer cottage.

The introduction of mineral fertilizers consists in diluting 50 grams of ammonium nitrate and 20 grams of superphosphate with potassium salt in one bucket of water. This amount of solution is focused on fertilizing a planting area of ​​2 m2. Fertilization is carried out twice: after the shoots appear, and a week after that.

Folk remedies for yellowing of feathers

There are a number of folk recipes aimed at destroying the breeding centers of parasitic insects and various diseases:

1. 200 grams mix wood ash with tobacco dust and ground pepper in the amount of one teaspoon. The amount of this fertilizer is directed to the treatment of a planting area of ​​1 m2. The mixture is used for sprinkling the plantings and the area adjacent to them, after which the soil should be loosened;
2. Add ammonia to 200 grams of salt, diluted in 10 liters of water. Water the resulting solution when the feather grows up to 8 centimeters, avoiding contact with the feather part. Thus, plantings should be processed 2 times per season. However, excessive application of such fertilizer will lead to soil clogging;

3. Mix mullein and urea in amounts of one tablespoon and dissolve in water. After that, watering is carried out in a radical way;
4. Fill a 200 liter barrel with fresh nettles and other weeds. Pour mixed greens with warmed water and add half a kilogram of yeast. During the first week of infusion, yeast does not need to be added, but the mixture needs to be stirred periodically. After adding yeast, the solution is infused for 3 days. Onion plantings should be watered with a bucket of essence diluted in a volume of one liter;
5. Components such as potassium permanganate, ammonia and salt are also used as nitrogen fertilizer.

Carrying out the above activities, what to do when onion feathers turn yellow, will help to stop the yellowing of onion plantings in time. The choice is presented, as any suitable chemical agent to combat this problem, and any folk recipe. In addition, the introduction of mineral fertilizers will also help to cope with the problem of what to do when the onion leaves turn yellow.