Calcium Top Rot Protection

Garden plants

Hello, dear friends - summer residents and gardeners!
Today I was going to talk with you about such a serious problem as top rot, which affects many fruit plants. Let's discuss the root cause of this disease, and I will share with you my experience in the prevention and treatment of apical rot using the simplest fertilizing solution.

Causes of top rot on fruits

Top rot mainly affects fruits of tomatoes, peppers, zucchini and eggplants. Clear signs of this disease can be observed on the lower part of the fruit: in tomatoes, peppers and eggplants, the apical rot appears as a brown dry spot, and in zucchini the tips of the fruits wrinkle and rot.

The reason for this misfortune may be the lack of calcium in the soil. But sometimes the problem is that calcium is in a form inaccessible to plants, and they simply cannot assimilate it.

The inaccessibility of calcium for plants may be due to the increased acidity of the soil at the site, since when the pH of the soil is lower than pH 6.5, the plants lose the ability to absorb calcium, like some other nutrients. Based on this, the development of top rot can be stopped by applying fertilizers containing calcium, for example, calcium nitrate, to the soil.

Calcium supplement

But I want to offer you another way to feed the plants with calcium, namely to add fertilizing to the plants based on calcium hydroxide, or hydrated lime-fluff. You can buy this lime in any gardening store, it is inexpensive, and you can quickly and easily prepare a solution: I dissolve one two-hundred-gram glass of lime in 10 liters of water and stir it well for two to three minutes.

It turns out an excellent calcium fertilizer for plants. Moreover, this solution has an alkaline reaction, and it deoxidizes the soil very quickly, as a result of which the plants begin to better absorb calcium.

Depending on the size of the plants that you will feed, it will be enough from 0.5 to 1 liter of solution for each root. And do not forget that root dressing must be applied on damp ground so that the roots do not burn. Two or three such dressings with an interval of 10-14 days will eliminate both the lack and the inaccessibility of calcium in the soil, but most importantly, they will help to defeat the top rot on tomatoes, peppers, zucchini and other plants.

I hope that this information and my experience will be useful to you. I wish you all a good mood and rich harvests.

Video about making calcium supplements


  1. Read the topic on Wikipedia

Sections: Fertilizers

The use of calcium nitrate for feeding peppers: how and when to fertilize

Gardeners use fertilizers when growing peppers. They are essential for healthy fruit, disease and parasite control. One of the dressings that is used at their summer cottage is calcium nitrate. It is effective, but when working with it, you need to take precautions and follow the recommendations of specialists.

  1. Why do you need calcium saltpeter for pepper
  2. How to apply potash fertilizers
  3. Self-preparation of calcium nitrate
  4. Schemes and timing of feeding
    1. Fertilizing from the moment the first shoots appear
    2. Fertilizing seedlings after picking
    3. After planting in the ground or greenhouse
    4. Top dressing during flowering
    5. During fruiting for quick fruit ripening
  5. Useful Tips
  6. Compatibility with other drugs
  7. Precautions

Top rot of tomatoes in a greenhouse: causes and how to deal with the disease

One of the most serious and fairly common diseases that often affects tomatoes in greenhouse conditions is top rot. In order to detect the disease in time and effectively deal with it, it is necessary to know the first symptoms of tomato peak rot and the most effective folk methods of struggle, as well as frequently used chemicals.

All this and much more will be discussed in this article.

Symptoms of the disease vertex rot on tomatoes

The main symptom of the disease is the appearance of dark gray or brownish spots on the tops of tomatoes. Affected fruits are flattened.

Photo of top rot on tomatoes

Such spots appear in the place where the bud disappears. They grow and dry out over time.

These symptoms can also appear during the period of ovary formation.

Top rot of tomatoes - video

Top rot of tomatoes in greenhouse conditions - the causes of the development of the disease

The main reason for the appearance of top rot on tomatoes in the greenhouse is the wrong irrigation regime. Although this crop is undemanding to the presence of moisture in the soil, during flowering and fruit development, tomatoes require water.

If summer residents irrigate these plants in greenhouses irregularly, then tomatoes are under severe stress due to lack of water. The foliage begins to draw moisture away from itself, taking it away from other aerial parts, including growing tomatoes. Thus, conditions are created for the development of tomato top rot.

Processing greenhouse tomatoes from top rot - video

Another reason for the development of the disease can be the appearance of a crust on the ground after the introduction of moisture. In this case, water and air do not reach the roots.

Many growers prefer to water tomatoes in greenhouses frequently, but in small portions. Such watering is often the reason for the emergence of top rot on tomatoes.

Photo of excess nitrogen

Photo of a lack of calcium in the soil

Another common cause of the disease is an excess of nitrogen and a lack of calcium in the soil. If tomatoes are watered too often with mullein solution, then a lot of nitrogen is formed in the soil. In hot weather, the root system of tomatoes begins to absorb calcium poorly, although there may be sufficient amounts of it in the soil.

Salinization of the soil, or its acidity, also provoke the appearance of the apical rot disease.

The bacterial variety of this disease usually affects the fruits lying on the surface of the soil, when the owners do not tie up the tomato bushes in time.

Preventive measures to prevent infection

You can try to prevent any disease by performing a number of preventive measures.

Treatment and prevention of top rot - video

Often the seed material of tomatoes, which is planted on seedlings, is affected by apical rot. In this case, prevention of the disease will be necessary.

First of all, you need to observe the irrigation regime, watering tomatoes in greenhouses regularly. It is important not to allow stagnation of moisture in the soil, as well as periods of drought, when the owners simply forget about watering. The soil in the tomato beds should be constantly moist. To do this, the next day after watering, it is recommended to loosen the trunks of tomato bushes, and then cover them with a layer of mulch to prevent rapid evaporation of moisture from the soil.

Photo of loosening the trunk circle of a tomato bush

Also you need to get rid of weeds in the beds in a timely manner.

When growing tomatoes in greenhouse greenhouses you need to carefully monitor the temperature and humidity. In hot weather, greenhouses and hotbeds must be ventilated in order to reduce the air temperature.

Photo of a layer of mulch for tomatoes

Do not get carried away with fertilizing, especially those containing a large amount of nitrogen. Tomatoes in greenhouses can be fed with a solution of mullein no more than twice a season, and the concentration of such a solution should be weak.

You can subject the seed to a bubbling procedure. In this case, tomato seeds are placed in a vessel with water through which oxygen is passed. For this, an aquarium compressor is used at home. Oxygen bubbles should be small. For this, oxygen can be passed through cheesecloth. This procedure is carried out for 17-18 hours, then the seed needs to be dried.

How to protect tomatoes from top rot disease

It is well known that plants with strong immunity are practically not affected by diseases, do not suffer from pests.

Photo of growing tomatoes in a greenhouse

To strengthen tomato seedlings and mature plants, they should be protected in the following ways:

    To make the seed material more resistant to diseases, it is soaked in special preparations that stimulate their growth before planting in a permanent place.

After that, it is recommended to place the seeds in a weak solution of potassium permanganate for 30 minutes.

Also, the seed can be held for 24 hours in liquid succinic acid or 1% zinc solution. Succinic acid is diluted in the following proportion:17 mg of the drug is diluted in a liter of water

To strengthen the tomato bushes, it is recommended to apply a solution of lime nitrate "on the leaf". To prepare such a top dressing, it is required to dilute 8-10 g of the drug in a bucket of water. It is necessary to carry out foliar dressing with lime nitrate no more than once every 3-4 days.

When the fruits begin to ripen actively, the foliage of tomatoes is recommended to be treated with calcium chloride. Such a solution must be prepared as follows: no more than 4 g of the drug is diluted in a bucket of water. Such feeding "on the sheet" is carried out every 3-4 days.

You can also feed the tomatoes with calcium in another way - to feed the plants “on the leaf” with milk of lime. This substance is diluted in an amount of 1 g in a bucket of water. Foliar feeding with milk of lime should be carried out no more than 2 times in 7 days

  • Greenhouse tomatoes can be fed with universal nightshade fertilizer. But it is required to strictly observe the dosage of the drug according to the instructions on the package. The most effective solution for improving plant immunity is the use of a solution of the following drugs: combinations of Nutrivana PLUS and Fertivant. You can prepare it like this: about 60 g of preparations are dissolved in 20 liters of water.
  • Top rot on tomatoes: what to do, how to treat, how to process

    If signs of the disease have already appeared on the tomatoes, you need to start fighting it actively and in a timely manner.

    Photo of calcium chloride

    Tomato bushes in greenhouses should be fed with calcium chloride, the mixture for processing is prepared as follows: in a bucket of water, you need to dilute 1 g of the drug, it is better to use the resulting mixture immediately after preparation.

    For the treatment of tomato bushes against the disease apical rot you can use special biological products such as "Fitosporin". The dosage and frequency of processing plants are indicated in the instructions for use of the preparations, but all this can be clarified with the sales consultants.

    Photo of the biological product "Fitosporin"

    For the bacterial form of this disease, preparations containing copper are effective - copper sulfate, Bordeaux liquid.

    Photo of copper sulfate and Bordeaux liquid

    Preparations for top rot of tomatoes in a greenhouse and how to breed funds

    The most effective remedies for tomato top rot are:

    • limestone saltpeter
    • calcium chloride
    • universal feeding for nightshade crops
    • Nutrivan Plus + Fertivan
    • A solution of calcium nitrate with boric acid.

    Calcium nitrate from top rot on tomatoes: how to dilute and apply

    Calcium nitrate has a very beneficial effect on tomatoes, saturating them with Ca, which helps the absorption of nitrogen. This feeding and processing improves the immunity of tomatoes and helps them better resist diseases.

    Calcium nitrate can be applied to tomatoes in a number of ways:

    • fertilization during spring digging of soil
    • foliar feeding of tomatoes with calcium nitrate
    • thorough spraying of tomato tops from all sides.

    For processing the vegetative mass of tomato bushes in greenhouses from top rot calcium nitrate solution is prepared as follows: 11-12 g of the drug is diluted in a bucket of water. Treatment of tomatoes with calcium nitrate from top rot is best done in the morning or evening. Water the tomatoes generously before processing. The solution is applied to the foliage on both sides.

    For a better effect in the fight against top rot of tomatoes, boric acid is added to the calcium nitrate solution. It must first be diluted in a separate container at the rate of 1 gram per 1 liter and then combine the compositions.

    Calcium Chloride from Tomato Top Rot

    A calcium chloride solution is prepared as follows:

    • 10 ml of calcium chloride dissolves in a bucket of water
    • add 2 cups of wood ash there
    • so that the solution sticks better to the foliage, add 40 g of grated laundry soap to it.

    Calcium chloride for tomatoes - video

    Folk remedies for top rot of tomatoes

    When growing tomatoes in greenhouses, many vegetable growers successfully use not only special preparations, but also use folk methods of combating tomato peak rot (including preventive ones):

      it is not recommended to plant plants at a close distance to each other, the bushes should not intertwine, and an approach should be provided to each of them

    when caring for most varieties of tomatoes, pinching is used

    in greenhouse conditions, tomatoes are recommended to be watered once every 2 days. In hot weather, tomatoes are watered daily and abundantly

    in hot dry weather, it is recommended to regularly ventilate the greenhouses so that the tomato bushes "breathe" fresh air

  • when planting plants, finely crushed eggshells and ash must be added to the planting holes.
  • Top Rot Resistant Tomato Varieties

    Experts say that there are no varieties of tomatoes for cultivation in greenhouse conditions with 100% resistance to top rot.

    However, there are many tomatoes that are highly immune to apical rot disease:

    • Alpatieva 905a
    • Astrakhan
    • Volgogradskiy 4/95
    • Leah
    • Lunar
    • Rychansky
    • Benito f1
    • Bolshevik f1
    • Grand canyon
    • F1.

    Vertex rot, like most other tomato diseases, is easier to prevent than to deal with later. Therefore, it is important to carry out preventive measures for the processing and care of these plants at all stages of their development.

    Fertilizer YaraLiva Calcinite NK 15.5: 26.5 1 kg Yara

    The minimum order amount on the website is UAH 150.

    Fertilizer YaraLiva Calcinite completely water-soluble calcium nitrate (CALCIUM NITRATE) is formulated for use in the open field and in greenhouses to fertilize a variety of crops. It is used in fertigation and hydroponics, without the risk of clogging in drip irrigation systems. YaraLiva Calcinite precisely ensures the instant and long-term interaction of nitrogen and calcium with the plant, especially in unfavorable soil conditions. Promotes strengthening of cell walls and membranes in plants, which makes them more resistant to diseases and mechanical damage. Significantly increases the quality of products during transportation and storage. Prevents apical rot on nightshades.
    Application area:
    Calcinite is used in protected and open ground for root and foliar application through all irrigation systems. Application for foliar feeding is possible. The amount and norms of fertilizing are specified depending on the agrochemical parameters of the soil, the requirements of the grown crop, the planned harvest, the technologies used, the quality of water and weather conditions. Solubility: 100% (1200 g / l at t = 20 ° C)
    Watering application:
    in greenhouses: 0.05% - 0.5% (0.5 - 2 kg / 1000l of water)
    in the open field 0.1% - 0.2% (1 - 2 kg / 1000l of water, 10-30 kg / ha)
    Foliar feeding:
    for field crops: 1% solution (2-5 kg ​​/ ha)

    Apple tree : Foliar spraying of trees with an aqueous solution of fertilizers is carried out from July to mid-August at a rate of 5-7 kg / ha.From mid-August to about 10 days before harvesting 8-10 kg / ha. Repeat every 10-14 days.

    Carrot : when watering 0.1-0.2% (1-2 kg / 1000 l of water, 100-200 kg / ha).

    Grapes : when watering: 0.1-0.2% solution (1-2 kg / 1000 l of water). Foliar dressing: 2-5 kg ​​/ ha during berry growth.

    Corn : For foliar application: 2-5 kg ​​/ ha.

    Melon : when watering: 0.1-0.2% solution (1-2 kg / 1000 l of water). Foliar dressing: three times 5 kg / ha during the growth of the fruit.

    Rape : For foliar application: 2-5 kg ​​/ ha.

    Pepper: foliar spraying with 0.5 kg / 100 l of water during fruit growth.

    Cabbage : foliar spraying: three times at 5 kg / ha when the head size reaches 20% after 5-7 days.

    Cucumbers : when watering: 0.1-0.2% solution (1-2 kg / 1000 l of water). Foliar dressing: three times at 5 kg / ha during fruit growth with an interval of 10-14 days.

    Raspberries : 5 kg / ha at the beginning of flowering and during filling and ripening of berries at intervals of 5-7 days.

    Tomatoes : 3-5-fold spraying at 5 kg / ha from the beginning of fruit setting.

    Strawberry : when watering: 0.1-0.2% solution (1-2 kg / 1000 l of water). Foliar dressing: three times 5 kg / ha during the growth of the fruit.

    It is strongly not recommended to mix calcium nitrate with fertilizers containing phosphates and sulfates, due to the precipitation of nutrients into the insoluble sediment. For this reason, calcium is usually not included in complex fertilizers. Calcinite must be applied separately from other complex fertilizers.

    Composition and formula of calcium nitrate

    An alkaline preparation dissolves quickly in water. The product has a chemical formula: Ca (NO3) 2. The composition of calcium nitrate includes (in%):

    • calcium - 19
    • nitrogen - from 13 to 16.

    Calcium nitrate almost does not acidify the soil, therefore it shows excellent results in sod-podzolic areas. Active substances neutralize acid, pull out excess components (iron, manganese) from the upper layer. Nitrate fertilizer works efficiently on any soil and in all climatic conditions. Top dressing supports plants in arid areas.

    Fertilizer for tomatoes - what top dressing to choose?

    Tomatoes are very responsive to both soil quality and top dressing. However, the introduction of an excessive amount of various fertilizers for tomatoes is unacceptable.

    For plants and fruits of tomatoes it will be better if they are a little "undernourished" than to give an excessive dose of nutrients.

    The best option is a phased application of fertilizers, and top dressing should be done with those elements that are necessary at this stage of the growing season of plants.

    Fertilizing tomatoes when planting

    Before starting planting, you should select tomato varieties that have proven themselves well in the region. In addition, you can successfully use your own collected planting material from the bushes you like.

    Selected seeds should be "pickled" with potassium permanganate, since no fertilizers for tomatoes will help if a known diseased plant rises. After that, the seed must be soaked in one of the preparations that stimulate germination, such as Guamat, Zircon, Kornevin or Epin.

    They not only accelerate seed germination, but are the first, environmentally friendly fertilizers for future sprouts. Being absorbed into the seeds, these preparations supply the microelements necessary for their growth and development to the sprouts.

    Planting material is soaked for a period of 16-18 hours at a temperature of at least 15 degrees (optimally 22 °). After that, the seeds should be removed from the solution, otherwise they will rot (the seedlings need oxygen). Germinate in a cloth soaked in solution.

    You cannot use such a useful fertilizer as wood ash to soak seeds. The mineral salts contained in it slow down the growth of young plants. Potash fertilizers for soaking seeds are not used for a similar reason - they have a depressing effect on seeds and seedlings.

    Fertilizer for seedlings

    The key to a good tomato harvest is strong and healthy seedlings. Timely and correctly carried out feeding plays a huge role in this.

    • It is necessary to pay attention to the soil that will be poured into the seedling boxes. It should contain all the substances necessary for the nutrition of young plants. This is the first feeding of tomatoes. An excess of nitrogen in the soil should not be allowed. It causes too active growth of green mass, the seedlings will outgrow and weaken, which can significantly reduce the future yield.
    • The first liquid feeding is usually carried out when 2-3 true leaves are formed on young plants. To prepare a solution in 10 liters of water, dilute one tablespoon of urea.
    • The next fertilization of tomatoes is carried out a week after the first liquid feeding. For him, a solution of nitrophoska is best suited at the rate of 1 tbsp. a spoonful of fertilizer per liter of water. The resulting solution is enough to fertilize up to 30 tomato bushes.
    • Subsequent dressings are carried out at intervals of 10 -12 days with a solution of nitrophoska (you can use "Agricol No. 3" or "Effekton O") before planting seedlings in the ground.

    The main visible signs of nutritional deficiencies are:

  • Sluggish, yellow, fast-falling leaves on tomatoes, as well as a slowdown in plant growth and development, indicate an insufficient amount of nitrogen in the soil. But it should be borne in mind that similar signs can be caused by low temperatures, lack of moisture and poor lighting of seedlings.
  • The stems and leaves of young plants acquire a pronounced purple hue, which means that the tomatoes lack phosphorus.
  • The leaves, which are pale with clearly visible green veins (chlorosis), warn the gardener that the plants need iron.

    If necessary, you can quickly feed the plants by spraying the leaves and stems with a nutrient solution (foliar dressing). A standard solution for this is prepared from superphosphate (1 tablespoon is poured with a liter of very hot water). The resulting solution is filtered off in a day and water is added to 10 liters.

    How to correctly fertilize tomatoes in a greenhouse

    After planting seedlings on the ridges in the greenhouse, you need to find out: how to fertilize the tomatoes and how often. Only timely and balanced feeding will allow you to get a rich harvest of delicious vegetables. Overfeeding the plants should be avoided as this can have the exact opposite effect.

    • Before planting tomato seedlings, fertilizers are introduced into the holes - a handful of humus or compost and a pinch of ash. This will be the first feeding of young plants. In the absence of humus, immediately after planting, small tomatoes are watered with "green tea" - an infusion of green herbs with the addition of mullein and ash.
    • The first liquid feeding is carried out approximately 2-3 weeks after transplanting. For this, a mixture of mineral fertilizers is used: phosphorus - 40 g, potash - 15 g and nitrogen 25 g, which are diluted in 10 liters of water. One liter of the prepared solution is poured under each plant.
    • During the period of mass flowering, the following feeding is carried out, which is necessary for the formation of a good ovary. It is prepared on the basis of mullein or bird droppings (0.5 liters), to which a small amount (1 tablespoon) of potassium sulfate is added and diluted in 10 liters of water. In the absence of organic fertilizers, fertilizing is carried out with a solution of nitrophoska (you can use "Solution" or "Kemira-universal." It is advisable to add about 3 g of copper sulfate or potassium permanganate to the liquid fertilizing.
    • When the ovary begins to form, the tomatoes are fed with an infusion of wood ash (2 liters per 10 liters of hot water) with the addition of 10 g of boric acid.
    • To accelerate the ripening of fruits and improve their taste during the period of mass fruiting, tomatoes are fed with a solution that is prepared from 2 tablespoons of superphosphate and one spoon of sodium humate in a bucket of water.

    It is highly undesirable to include nitrogen-containing fertilizers in the last two feeding of tomatoes.

    Organic fertilizers

    • Cow or horse manure, less often pig manure is the most popular fertilizer among gardeners. It should be applied only after composting.
    • Poultry droppings are a very powerful fertilizer that, if used improperly, can "burn" plant roots.

    It is used after composting with straw or peat at a rate of 1: 2, and also as a liquid top dressing (10 g of dry manure per bucket of water). A wonderful liquid top dressing is herbal infusion (green manure). Green parts of plants (gardeners advise nettle) are poured with water and infused for 2 weeks.

    Peat is a universal regulator of soil moisture (with simultaneous fertilization and improvement of its structure). It retains moisture on sandy soils and picks up excess moisture on heavy soils. But there are few nutrients in it, so peat is usually mixed with other organic fertilizers.

    Ash generated by burning branches, straw, firewood or charcoal is called stove ash and is a valuable fertilizer. It contains potassium and phosphorus in easily digestible forms, as well as a large amount of trace elements (magnesium, manganese, iron, sulfur, zinc, molybdenum, etc.).

    When applying ash, it should be embedded to a depth of about 10 cm, since when applied superficially, it contributes to the formation of a soil crust. Do not mix this fertilizer with mullein or bird droppings, lime, phosphate rock, as this reduces the effectiveness of fertilizers.

  • The stores have a wide selection of ready-made organic fertilizers: Vermix biohumus, Piksa supercompost, Take a look! Compost Nadezhny and others.
  • Mineral fertilizers for tomatoes

    Mineral fertilizers for tomatoes are divided into nitrogen, phosphorus and potash.

    Nitrogen fertilizers: ammonium nitrate, ammonium sulfate, ammonium sulfate, carbamide, urea. These fertilizers cause acidification of the soil, so after using them, liming of the soil should be carried out.

    Phosphate fertilizers. It is superphosphate in the form of powder or granules.

    Potash fertilizers for tomatoes. Potassium sulfate or potassium sulfate is usually used. It is not advisable to use potassium chloride and potassium salt, since they increase the chlorine content in the soil, which negatively affects the development of tomatoes and the taste of fruits.

    Complex fertilizers

    Recently, gardeners are increasingly using ready-made complex fertilizers. These include: diammophos, nitroammophos, ammophos, nitrophoska, Kemira Universal-2, Calcium nitrate, Solution, Universal, Potassium monophosphate and others. Their main advantage is that they eliminate the need to independently make up a mixture of various fertilizers.

    Tomatoes, although they require additional attention, are very responsive to timely correct feeding and various agricultural techniques (loosening, weeding, hilling, watering). Therefore, every gardener is able to grow a good harvest of tasty and healthy fruits.

    Fertilizer "Calcium nitrate", description, rules of application and use.

    Fertilizer "Calcium nitrate" - promotes the growth of plant cells.

    Calcium is essential for the correct and healthy development of young plant tissues, increasing the hardness and quality of the fruit.

    Calcium nitrate prevents the development of top rot in tomatoes, leaf burn in lettuce and other diseases associated with a lack of calcium.

    Calcium nitrate contribute to all cultures. Most effective on acidic soils, especially for spring feeding of winter crops.

    Calcium nitrate - the only fertilizer from the nitrogen group that can improve the structure of the soil. Improves the penetration of water and oxygen into the soil.

    Application of Calcium nitrate.

    It is used in protected and open ground, for watering and feeding vegetable, fruit, flower and ornamental crops during the period of intensive plant growth (before flowering).

    The use of nitrate nitrogen minimizes the environmental risk from fertilization, since it is completely absorbed by plants, and no ballast substances remain in the soil that can lead to salinization.

    Application rate of Calcium nitrate.

    field crops - 100-250kg / ha - application to the soil in dry form

    all crops - 1.5-3% solution - foliar feeding during the growing season.

    Watch the video: Best Calcium Supplement Top 10 Rankings, Review 2018 u0026 Buying Guide

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