Iodine for tomatoes in the greenhouse

Many garden owners use iodine-containing preparations for fertilizer of vegetable crops – this chemical element protects bushes from fungus, contributes to their rapid growth and development. However, the composition of the iodine tincture is quite aggressive, so it requires extremely accurate compliance with the. Today we will tell you more about effective recipes for casualties on the basis of iodine and the features of their filing.

Properties of iodine

Tomatoes – very big lovers to eat, so there are not enough traditional feeding. This culture is gratefully responded to the use of folk recipes from iodine. It can be applied both at the stage of seedlings and for fertilizing adult plants.

Iodine-containing feeders were widespread in the late stages of vegetation for the prevention of fungal infections. Under the conditions of iodine deficiency, tomatoes suffer from phytoofluorosis, the drug prevents the appearance of a black leg, gray rot and brush.

In addition, the trace element:

  • Provides rapid growth and development of seedlings;
  • optimizes metabolic processes in cells;
  • contributes to the appearance of uncess;
  • improves the taste of fruits;
  • Accelerates the ripening process.

When it is necessary to undercase?

Lack of iodine The most adversely affects the development of tomatoes. External signs of lack of trace elements are:

  • fastented thinned stems, pale leaves, sluggish shoots;
  • weak immunity, susceptibility to disease and parasites;
  • frequent infection with vertex and root rot, phytoofluoro;
  • Crops are low or absent at all;
  • Bad resistance to heat, arid weather, temperature rings and return frost.

Iodine-based solutions as a fertilizer need to be used on a specific schedule. However, with acute microelement shortage, the bushes require an unscheduled feeding. To determine the need to introduce iodine, it is necessary to estimate the condition of the bushes of tomatoes in general, follow the state of seedlings and the growth of fruits.

Fertilizer is produced in two ways: through spraying of leaves or by making nutritional compositions to the ground, under root. Root feeders are particularly important at the seedlings. Extremely use as a permanent agent for plants pathologies or their oppressed state.

Usually both ways alternate, in this case, tomatoes will absorb iodine much faster.

How to breed?

There are many fertilizer recipes based on pharmacy iodine preparations. Let’s focus on the most popular of them. These compositions, according to gloomy reviews, bring maximum benefit of vegetables when growing.

Iodine and milk

Dairy products contain a lot of amino acids useful for vegetables – they contribute to the optimization of metabolism in green tissues, accelerate the absorption of nutritional micro- and macroelements. Root feeders based on milk and iodine enrich the soil, and extra-root beneficially affect the bushes of tomatoes and fruit formation.

Milk and iodine tandem covers green leaves with film. She prevents the penetration of the spore of fungi and insect punctures, thereby protecting the plant. Prepare a fertilizer is easy – for this you need to mix 1 l of milk, half-water and 25 drops of iodine. The solution is thoroughly mixed, poured into the pulverizer and process bushes on all sides.

Tip: The greatest effect gives the use of a fine sprayer. It creates a lung cloud from small drops – in this case, the drug is distributed over the leaves more evenly.

Iodine and manganese

These components have pronounced fungicidal properties, so the feeding is performed by protective and therapeutic functions. Especially effective composition at the time of the threat of appearance of phytoophulas. To prepare a working solution for fertilizer, in 10 liters of water, 25-30 drops of pharmacy iodine are bred and a pinch of potassium permanganate crystals are poured. The composition should be pale, because concentrated solutions can cause a root system burn.

Before processing, you should target all the weed herbs, remove the bottom leaves on the tomato bushes and break the substrate. The composition based on permanganate and iodine is used for the irrigation of the bushes every 7-10 days. The feeder is made early in the morning so that in the evening the bush could dry.

Before irrigated, the land around the seedlings can be disapproved by wood ash – this substance is destructive effect on phytoofluorosis, the complex impact creates the bushes maximum protection.

Iodine and ash

The mixture of iodine and wood ash is used after the formation of uncess, since at this stage the tomatoes are needed in potassium. The main advantages of such a feeding – its natural composition, low cost and accessibility. In addition to potassium, the aspect contains calcium, phosphorus, as well as selenium and many other useful components.

For the preparation of a working solution in 10 liters of water, 1 cup of woody ash is breed, the day is the day and 30-35 drops of pharmacy iodine are mixed. If you plan to carry out an extraxanle spraying, then the volume of iodine must be reduced twice. Before the fertilizer, the soil moisturizes, the norm of the feeding is 1 cup on a tomato bush. Such processing must be repeated every 10-14 days.

Iodine and serum

To strengthen immunity, vegetables are often watered with lactic serum. It includes microorganisms containing the growth of pathogenic microflora. Fake on the leaves, it creates a protective film, and already from her cells absorb all the necessary trace elements. Present in the ferocular products of lactose scares insect pests. The mixture of iodine and serum creates reliable protection against pulse dew, rust, spottedness of leaves, crasher and fuzariosis.

For the manufacture of nutrient feeding 3-4 l of water, stirred with 1 liter of serum and introduced 10 drops of iodine. All ingredients are stirred and watered under the root.

Iodine and Zelena

The composition based on a diamond greenery and iodine has a powerful antimicrobial effect, so it is used in the threat of lesion by phytoofluorosis and other fungal pathologies. And that and the other drugs are antiseptics, so in the tandem they act as efficiently as possible. Besides, Such feeding allows you to fill potassium deficiency, fluorine and copper. Usually, the lack of these trace elements indicates the abandon of leaves, stains on sheet plates and the thinning of shoots. For the treatment of fungal infections make a solution of 30 drops of the pharmacy tincture of iodine and 50 ml of green dissolved in the bucket of cool water. For prophylactic spraying, the concentration must be 5 times lower.

How to get down?

The rules for making feeding on the basis of iodine drugs vary depending on the stage of vegetation of the bush and its condition. If tomatoes show the symptoms of the disease – it is better to spray them if you think that culture requires nutrition – fertilizer is added under root.


The very first processing of iodine is better to do before planning, processing seedlings in a weak solution.

The second time iodine will need after the appearance of 2-3 real leaves. At this moment, the greater effect gives watering.

After disembarking

All feeding with the addition of iodine produce in a couple of weeks and after transplanting seedlings to open ground. Do this before it is not necessary: ​​the plant needs time so that the seedlings are growing, and the root system has taken root in the ground. At this stage, it is important to create plants to effectively protect against fungal diseases, ticks, slugs, colorado beetles and caterpillars, as well as provide them with all the necessary micro- and macroelements.

During flowering, for zeroshi

At the stage of flowering and education, tomatoes become vulnerable, because they are all their strengths to the fruit tie. At the very beginning of the flowering of the plant you need to fertilize root feeders. At the end of the flowering plants, it is better to make a composition of iodine and dairy products.

In any suspicion of the appearance of diseases, it is possible to carry out additional processing with compositions from iodine with the addition of green or permanganate potassium.

During fruiting

During fruiting tomatoes feed with iodine-based compositions for rapid maturation. Bushes feed 2-3 times with periodicity of 7-10 days. With high humidity, the greatest effect is given compositions from iodine and serum.


The easiest method of making fertilizers is a feeder under the root. Irrigate the plants by iodine-containing compositions, you can both in open areas and in greenhouses. However, the effect can be achieved only under the following conditions:

  • lack of direct UV rays;
  • Watering in the evenings or early in the morning;
  • Clear and dry weather, otherwise the mixture is simply strokes from the leaves;
  • Optimal Temperature Background – + 18-20 degrees.

Using feeding with iodine, it is very easy to make a mistake with dosages and thus harvest the root system.

A pharmacy drug Iodide potassium is a concentrated product and can easily burn roots when watering and destroy landing.


Spraying iodine-based solution is only gaining popularity. It involves the creation of an artificial fog, saturated with iodine ions and other nutrients. To perform a spraying, prepare a mushroom solution, distribute it over the bushes using a sprayer or ordinary broom. Under all dosages, this method is absolutely safe for both young seedlings and fastened plants.

How to use to combat diseases?

The use of iodine preparations gives a high effect to prevent the appearance of root and other types of rot, tobacco mosaic virus, fusarious wilting and drone spot. Iodine has proven itself as one of the most effective means that protect tomatoes from phytophulates – This is one of the most dangerous cultural diseases. In the absence of treatment, the disease quickly applies and in the shortest possible time destroys up to 80% of the crop. The first for the disease indicates the appearance of dark gray spots on the back side of the sheet plates, soon the sheets become brown, and the fruits begin to black.

Usually, such a disease is developing in conditions of high humidity and with excessive limeting of the soil. Most often suffer from weak plants that lack nutrient trace elements.

It is impossible to treat the amazed bush, but you can prevent infection of neighboring tomatoes – for this and spray them with a solution of iodine. His evaporation kill the spore fungus and do not give them to grow.

What are iodine in the greenhouse and how to do it right?

To improve the growth and formation of culture in greenhouses, it is possible to raise the containers with iodine. Evaporating, this means fights dangerous fungi, which often develop in dampness. In addition, its evaporation increases the number of stocks and, as a result, yield. When using this method, adhere to several rules:

  • to tie iodine in the greenhouse at the very beginning of summer;
  • to greenhouse with an area of ​​8 kV. M. 6 iodine bubbles suspend;
  • Capacities put around the perimeter, the distance to the garden should be at least 1 m;
  • The drug follows from time to time to the bottle, as it is constantly evaporated.

Keep in mind that in a greenhouse where bubbles with iodine are hung, people can not be for a long time, because evaporation in large volumes can represent danger to the human body. You can not use iodine in polycarbonate greenhouses. Plastic enters with him in a chemical reaction, as a result, quickly agrees and becomes extremely fragile. This leads to the fact that after 5 years, polycarbonate greenhouses can fully lose their characteristics.

Precautionary measures

      When working with iodine-containing drugs, security equipment should be followed.

      • Use of personal protective equipment – rubber gloves, glasses and respirator.
      • Working solution is prepared in the outdoors or in a well-ventilated room.
      • Single iodine vapor hit in the respiratory tract of a person can entail light discomfort, but does not represent health hazards. But the re-hitting is already associated with risk for life.

      On the use of feeding of tomatoes iodine, see video.

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