Why Does The Onion Turn Yellow

Why Does The Onion Turn Yellow
Why Does The Onion Turn Yellow

Video: Why Does The Onion Turn Yellow

Video: Why Does The Onion Turn Yellow
Video: Managing onion diseases (Summary) 2024, March
Anonim

The yellowing of a green feather during the ripening period of turnip onions is a normal and correct process. Here nutrients from the leaves "flow" into the forming turnip. But if the feathery leaves acquire a stunted yellow color in May, June, this is a problem that needs to be addressed immediately. Otherwise, the harvest will grow poor.

Why does the onion turn yellow
Why does the onion turn yellow

causing yellowing of onions during active growth in May and June -

Onion plants react sharply to a lack of nitrogen both in dry weather and in rainy weather. Plants cannot take nitrogen from dry soil, and all nutrition to the roots comes only in the form of solutions.

After heavy rainfall, nitrogen goes into the lower soil layers and soil depletion occurs. And here nitrogen-containing dressings come to the rescue, which are easy to digest and thanks to which the onion quickly restores its growth and the saturation of the color of the leaves. You can use nitrogen mineral fertilizers (urea, ammonium nitrate) or apply complex complex fertilizers with a high nitrogen content, for example, use nitroammophos, nitrophos.

At the initial stage of onion growth, organic fertilizers also work great. This is a 5-7-day infusion of weeds, especially nettle, clover. Any manure extractor will do. You can combine organic and mineral fertilizers.

is the harm done To be sure of this, you will have to pull the bulb out of the soil, examine the bottom and roots, and cut it. Inside the cavity of the onion will have a liquefied tissue with an unpleasant odor, in which you can see worms - onion fly larvae. Emergency help in this case - the onion is watered with saline in the evening. Take 200 g of table salt, dilute in 10 liters of water and gently watered at the root, avoiding contact with the green feather. Re-treatment is done two weeks later.

Another popular method that will simultaneously help get rid of onion fly worms and feed the plants with easily assimilable nitrogen is ammonia from a pharmacy. It is necessary to dilute three tablespoons in 10 liters of water and pour the onion under the root in the evening.

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