How to save cucumber seedlings from wilting if their leaves turn yellow?

Healthy, tasty, fragrant cucumbers from your own garden can be obtained by mid-summer. However, not everyone wants to wait that long, so they grow vegetables in seedlings in order to get the first fruits faster. Seedlings of cucumbers require special attention; their cultivation is fraught with various problems. For example, yesterday there were beautiful pale green leaves, and today they have already turned yellow. Why does foliage turn yellow and then dry? What to do to save plants from wilting?

Causes of yellowing of seedlings and methods of dealing with it

Why the seedlings turn yellow and what to do in this case is a question that sometimes even the most experienced summer resident is looking for an answer. The yellowness of the cucumber leaves is a sign of burning. It appears due to the influence of various factors.

• Small capacity

Gradually, the root system of cucumbers grows, so it requires room for development. A small capacity leads over time to a lack of space for root growth and a lack of nutrients. To prevent the plant from wilting, an urgent need to transplant the sprout, despite the fact that the cucumber does not like transplanting. In the future, it is worth paying attention to the sowing time of the seed so that the seedlings do not outgrow.

• Lack of minerals in the soil

The foliage of cucumber seedlings turns yellow with a lack of nitrogen, manganese, potassium, calcium or sulfur. If the edges of the leaves turn yellow, this indicates a lack of potassium, the veins turn yellow - most likely, the soil is poor in magnesium. Also, an imbalance in the balance of nitrogen and potassium in the soil leads to wilting, the second element should be twice as large as the first. In this case, you need to additionally feed the cucumbers with the necessary fertilizers.

• Excess nitrogen

Yellow leaf edges or pigmentation of the entire surface may indicate poisoning due to the application of a large amount of ammonia fertilizer. In this case, timely assistance must be provided: rinse the roots and change the soil. In the future, strictly adhere to the recommendations for fertilizing sprouts.

• Toxin poisoning

They are distinguished by an insulating foam lining that is usually placed under cucumber containers. Chemical compounds can also be formed as a result of contact of the foam with fertilizer falling on it. Harmful compounds pose a danger not only to seedlings, but also to future fruits. To avoid the release of toxins, it is necessary to lay a film on top of it.

• Low temperatures

Lowering the temperature in the root area (from 17^aboutC) leads to the inability of seedlings to take nutrients from the soil, even if their amount is optimal. A similar problem often occurs when growing plants in a greenhouse or greenhouse. To solve this problem, you need to apply a covering material. You can also place containers with hot water next to the seedling containers, which will help maintain the optimal temperature.

Important!

At temperatures up to +14^aboutFrom and from +42^aboutSince the plant stops growing and developing, the temperature is below -1^aboutC leads to the death of the shoots.

• Insufficient or excessive watering

The yellowing of the leaves is caused not only by the lack of moisture in the soil, but also by its excess. To prevent this factor, it is necessary to control the microclimate. Moreover, this rule applies to growing vegetables not only at home, but also in a greenhouse or open field. When watering, you must remember that cucumber sprouts love warm water, cold water can lead to various diseases.

Important!

Violations of the irrigation regime can lead to both pigmentation of the leaves of the seedlings and the fall of the plant's ovaries.

• Lack of light

Yellowed cotyledon leaves help to guess about this factor. To eliminate this factor, you can use additional lighting of the seedlings, or - in the case of growing cucumbers at home - rearrange it to another place, more illuminated.

• Diseases and parasites

Cucumber seedlings turn yellow due to the manifestation of fungal diseases: powdery mildew, root rot, fusarium, downy mildew. Also, the appearance of aphids and spider mite, which feed on vegetable juice, thus destroying seedlings. Such an invasion is evidenced by the yellowness of the leaf, which gradually covers the entire leaf, moving from the edge to the central part. If detected, it is mandatory process cucumbers appropriate solutions and preparations.

Before proceeding with the treatment of a plant, it is necessary to visually inspect it, check the condition of the soil and root system. And only then, depending on the detected deviations, determine what to do to save the cucumber seedlings.

Yellowing of seedlings indoors and outdoors

• In the greenhouse

To determine why cucumber sprouts turn yellow in the greenhouse, you need to know the possible factors that affect the pigmentation of plants in greenhouse growing conditions. Along with diseases and violations of cultivation techniques, a small number or an excess of ovaries can lead to yellowing.

Advice

Cucumbers grow very quickly in the greenhouse, so for normal development it is necessary to remove new shoots in time.

• In the open field

It is often not difficult to determine why sprouts transplanted into open ground turn yellow: this is affected by improper agricultural technology or pest damage... Frost is also distinguished among the reasons. In this case, the correct planting time must be observed, and if a cold snap is likely, you should use a covering material. The edges of the foliage begin to turn yellow with an unsuccessful choice of a planting site.

Advice

It is better to transplant cucumbers to a permanent place when the weather is favorable. For disembarkation, you must choose a well-lit place that provides an influx of fresh air.

Faced with the problem of yellowing of the leaves of cucumber sprouts, you must first figure out what conditions were created for the growth and development of cucumbers, only the tips or completely the leaf turned yellow. This will help to find answers to the questions why pigmentation has occurred and what to do to heal the sprouts. It does not matter where the cucumber seedlings grow: at home on a windowsill, in the open field or in a greenhouse, in order to prevent leaf pigmentation, it is necessary to create optimal conditions for plant development by balancing the amount of fertilizer applied and watering.

Of course, it is not always possible to visually determine why the edges of the foliage turn yellow. In order to prevent wilting of plants on the windowsill, in the greenhouse or in the ground, it is necessary to provide initially the best conditions for growing seedlings, and also do not forget to do everything possible to prevent diseases and parasites. If all the efforts made are not in vain, then you can soon enjoy a high-quality and abundant harvest.