If you don’t follow the basic rules of cultivation, the tomatoes become sluggish, the leaves twist around tomato seedlings. If you notice that your landings have stopped developing and look painful, then you need to look for the cause of this condition. The sooner you start eliminating negative factors, the more chances there will be to completely restore the plants.
Rules
You need to pay attention to the place where you grow your planting. It is best to grow seedlings on the east or south side of your home. If the curl of the leaves occurs from time to time, then perhaps you periodically rearrange the pots with seedlings, but the tomatoes do not like this. Also, the room can have a very dry climate for your landings.It is enough to normalize the irrigation regime, irrigate the plantings 2-3 times a week, with standing water, at room temperature.
Lighting
Plantings should be lit at least 9-10 hours in day. If there is not enough daylight, then seedlings can be artificially illuminated with special lamps. The lamp should be located no closer than 30-50 cm from the plants. If the lamp is located at a closer distance, then your plantings may burn. In this case, the lower or upper leaves become brown spots or stains.
Humidity
With excessive moisture, some parts of the plantings become brittle and curl up. When growing tomatoes in pots, in the bottoms of the pot, it is imperative to make holes so that excess water flows out after irrigation. And the pots with planting themselves must be put on trays. In case of excessive humidity, seedling irrigation is suspended for a certain period.
The soil must be dried by about 2 cm, after which, provide moderate irrigation for planting. For planting seeds, loose and well-permeable water and oxygen soil are used. Water the plantings at the same time. If the leaves twist after setting the optimum humidity level for tomato seedlings, then you need to pay attention to the room temperature.
Air temperature
Why do tomato leaves twist in tomato seedlings?If the air temperature in the room where the tomatoes are located is higher than 33 ° C, then small shoots are twisted into a tube along the core vein. In the daytime, seedlings are twisted on all tomatoes, at night, when the temperature drops, the sprouts unfold. Seedlings are vulnerable to direct sunlight, so they must be protected from them.
Leaves can curl from high temperature
To do this, you can cover the windows in the room with a special shading net. It is important to regularly ventilate the room. Gardeners advise spraying tomatoes with a weak solution of potassium permanganate, but this should be done only in the evening, when there is no direct sunlight. If tomatoes grow in a greenhouse, then to lower the temperature of the soil, you can mulch using humus or straw.
Variety
If the sprouts have formed correctly and have the usual shade, and also you did not notice any other diseases and abnormalities, then maybe this is just a feature of your tomatoes. Look closely at the plantings, if the sprout on the seedlings is slightly lowered and barely wrapped down, this is a characteristic sign of the variety variety. The following varieties of Cherry, Fatima, and Honey Droplet possess these features.
A very rugged leaf that may be characteristic of tall varieties.Long and tall types of tomatoes have voluminous leaves that hang down and may curl a little. Before you buy different types of tomatoes, you need to consult the seller of seeds, find out what characteristics these types of tomatoes have and how they will look externally.
Fertilizers
fertilizers should be before and after planting seeds for seedlings. To fertilize the soil, it is optimal to use purchased complex mixtures. Fertilize the soil 15-30 days before the intended planting of seeds. After the first leaves appeared on the seedlings, the plantings can be fertilized with vitamin and mineral fertilizers according to the instructions.
Microelements
When the balance of micronutrients is disturbed, the tomatoes are twisted around the whole seedlings leaves.
Especially this phenomenon is characteristic of an overdose of nitrogen fertilizers, then the leaves on the whole tomato seedlings are twisted into a ring. With an excess of fertilizers, the seedling leaf has a dark green color and a lush structure, but it is quite fragile.
Nitrogen, which oversaturated the plant, blocks the influx of phosphorus and the plant does not receive this element in full. Thanks to the introduction of phosphate-potassium fertilizers into the soil, it is possible to balance and adjust the balance of trace elements. Phosphoric potash fertilizers can be applied to the soil with watering.
If the phosphorus content in the soil is normal, it is possible to do just potash fertilizers.
So that the wrong balance of fertilizers does not harm the seedlings, you should use the complex fertilizers, which include all the necessary elements in the right quantities. It is best to make fertilizers in the form of an aqueous solution during plant irrigation, so fertilizers are better perceived by tomatoes. For huge areas, solid mineral tuks are mainly used, but certainly under irrigation. If you want to apply complex fertilizers to the soil, you need to dilute 2 tablespoons of mineral fertilizer into 10 liters of water.
Fertilizer rules
It is important to properly fertilize the plants
It is very important to ensure that the soil is properly fertilized and your plantings received all the necessary vitamins and minerals in the right amount. If there is not enough boron, copper, zinc or sulfur, then in addition to color modification, tomato leaves can spin up.
Boron and copper
If there is a shortage or excess of boron in the soil , then near the veins you can notice areas with a reddish-red tint. Young shoots are sensitive to a lack of the required amount of copper in the soil. With a shortage of copper, the sprouts can twist towards the central vein, plantings can turn yellow, and eventually dry.
It is more efficient to apply preparations containing copper and sulfur to the soil. They complement each other and do not allow leaves to curl.
Zinc and phosphorus
With a lack of zinc, tall and formed seedlings suffer. Young leaves become brittle and curl down. As a rule, when preparing the soil for planting seeds, a sufficient amount of fertilizer is applied so that they are enough for the initial cultivation of seedlings.
When there is a lack of phosphorus, all leaves are twisted around tomato seedlings and bent down. The leaves become lilac, often protruding from the stem at a sharp angle.
Potassium
When there is a lack of potassium, new shoots curl up from the edge to the core vein. Young sprouts have inferior curliness. You can pour wood ash under the root of each plant to replenish potassium. And with large-scale cultivation, you can feed fertilizer with potassium nitrate in solid form, or make an aqueous solution.
Diseases and pests
If you take care of the plant incorrectly, then it will often get sick. The main symptom of the disease is wrapped tomato leaves. Other characteristic features of the disease:
- Bacteriosis. The cause of such a disease is seeds that have not been treated with disinfectants.In a disease, leaf curl occurs throughout the seedlings gradually, and over time, parts of the plant become small. Inflorescences turn white. The disease progresses, planting slows down growth and development. The fruits of such plantings must be eliminated, and the soil in the greenhouse completely replaced. The carriers of the disease are scoops and whiteflies. If a tomato disease causes bacteriosis, you need to proceed with the destruction of parasites.
- Fusarium wilting. Fungal diseases arise mainly due to poor soil microflora. The disease spreads from the root to the top of the tomatoes. If the plants have obvious signs of the disease, the leaves turn yellow, then it is necessary to eliminate the tomatoes, and disinfect the soil: water the soil with a solution of potassium permanganate, and conduct preventive spraying with biofungicide on the remaining bushes. The soil in which the infected plants grew must be changed, and in no case should it be used to grow other plantings.
- Parasites. If the lower or upper parts of the tomato are twisted, then the attack may be caused by an insect attack. This is mainly: black aphid, tomato aphid, whitefly and tick. If the top of the head and other parts are covered with insects, you must collect the pests manually, and then treat the plantings with special preparations for parasites.
Prevention
It is necessary to regularly conduct preventive spraying with special chemicals against pests that infect plants.This protects the tomato from disease.
Recommended use natural insecticides or folk remedies. Such drugs, penetrating inside the tomatoes, do not harm plantings.
To prevent leaf twisting, you need to it’s better to approach the selection and purchase of seeds for sowing, properly prepare the soil, fulfill all the conditions of the growing technology, and especially the disinfection stage. This will help to collect a good crop.
