Cucumber problems in the greenhouse: leaves turn yellow

Why do cucumber leaves turn yellow in a greenhouse and how to deal with it? To deal with these processes, you will have to try and carefully consider your garden. If the cucumber shoot develops and grows correctly, but it differs in a saturated green color. Sometimes in the greenhouse the leaves of cucumbers begin to turn yellow, which casts doubt on the fact of normal development and obtaining a good crop.

If the leaves of the cucumbers began to turn yellow, this process should not be allowed to drift. This is a sure sign that the gardener made some mistakes in caring for the plant and, if you do not take measures, you can eventually ruin the entire crop.

About the causes and remedies

The first thing that comes to mind (see video) when it comes to why the leaves of cucumbers turn yellow in the greenhouse and how to deal with it is the wrong watering. That is, watering may be insufficient or it is excessive. For cucumbers to develop well, they need high humidity conditions. If the ovaries are small and cucumbers have just begun to develop, then the leaves are the main and source of moisture. It turns out that if there is not enough water in the soil, then the leaves and fruits do not develop evenly. Read about what can be planted in the same greenhouse with cucumbers.

To return the plant to a healthy appearance, it will be necessary to start constantly saturating the beds with warm water in sufficient quantities, and switch to regular and proper watering.
Advice from experienced gardeners! Beds with cucumbers in the greenhouse need to be watered twice a week. 25 liters of warm water are used per bush - this amount will be enough to saturate the plant with moisture. At the same time, it is better to warm the water in the sun, and not using mechanical methods.

So, in order not only to properly water the cucumbers, but also to use suitable water for this, on the day of irrigation you need to collect water in a barrel and leave it for the whole day in the sunniest place on the site. By evening, the water will warm up to a temperature that is optimal for irrigation.

Cucumbers in the greenhouse

If specifically we are talking about the fact that the leaves of cucumbers planted in a polycarbonate greenhouse turn yellow, then there may be some reasons.

First of all, they distinguish among the causes of yellowed leaves in a greenhouse:
1. night frosts;
2. insufficient amount of moisture;
3. a large number of ovaries;
4. defeat by disease or fungus;
5. The negative impact of insect pests.

To solve the problem, it will be necessary to identify its specific cause, and then deal with the elimination. Suppose that the leaves turned yellow due to frost, then tear off the affected parts of the plant and provide thermal protection. Most often, the problem is relevant for the end of spring and the beginning of summer, damaged ovaries will have to be removed, and the soil should be treated with a weak solution of potassium permanganate. If the problem is in diseases or pests, then carry out appropriate treatment.

Excessive or insufficient watering, as mentioned above, is the main reason why the leaves of this plant turn yellow in the greenhouse or in the open ground. Especially, of course, the problem is relevant for the greenhouse, because they forget to air it and due to this a dangerous greenhouse effect is created. It is very important to ensure that water does not collect in the upper layers of the earth, but evenly penetrates the soil and goes to the root system of the plant. Additionally, it will be possible to introduce mineral fertilizers into the deep layers of the soil.

Advice! If the yellowing of the leaves does not occur evenly, but with spots - this is a sure sign that the plant lacks potassium. It will be necessary to feed to restore the color of the leaves.

About yellowing on the beds

This material has a lot of information on the topic of why the leaves of cucumbers turn yellow in the greenhouse and how to deal with this photo. But one cannot deny the fact that in open ground the plant may also turn yellow and there will already be its own reasons. By the way, something will be useful to know when choosing a place for planting cucumbers in closed ground.

First of all, you can not plant cucumbers in that section of the garden where they grew before. It is important to alternate places. Plus, the leaves may turn yellow on the open ground due to the constant exposure to direct sunlight, so the vegetable should definitely provide shade.

Also pay attention at what time of the day the watering of the crop is carried out. It is best to irrigate the beds in the evening, because if water falls on the leaves at noon, it will attract sunlight, and in the end it can lead to severe and dangerous burns. So, it is better to water in the evening or in the early morning.

About protection methods

So, vegetables of the pumpkin family, cucumbers also belong here, should not be planted in one place of the site more often than once every four years. In the greenhouse, the soil, in addition, always needs to be disinfected, and once every several seasons - completely replaced to ensure garden crops normal growth and development.

Be sure gardeners must carry out biological protection of the plant. To do this, pour appropriate fertilizers into each hole, which you can buy ready-made in stores. They will stimulate the growth of seedlings, inhibit the development of pathogenic fungi and simply protect the plant from various problems.

It is clear that you need to monitor whether the plant has enough vitamins and minerals. It is also important to maintain the correct level of microflora in the greenhouse, to prevent the appearance of fungal diseases.

This is the main important information on why the leaves turn yellow. cucumbers in the greenhouse and how to deal with it. As you can see, some problems are the same for both closed and open ground. Other problems are characteristic precisely because of the specific method of cultivation. We hope that the tips from this material will be useful, you can accurately determine the cause of yellowing of the leaves and quickly carry out the treatment of the plant.