Seasonal feeding of domestic citrus plants. Top dressing citrus fruits at home

Growing a lemon at home is the dream of many flower growers. It is not difficult to germinate a bone, in just a couple of weeks a sprout will appear. But to grow a full-fledged tree out of it - strong and beautiful, is quite difficult. Such a plant is very sensitive to environmental conditions, but with the right approach, you can cope with this.

A lot of light and water, heat and humid air are the main conditions for the normal growth of citrus. But no less important is what nutrients gets a plant. Purchased soil enough for 3 - 5 months, then you need to recharge so that you have enough strength for growth and development. You need to know exactly what and how to add to the ground, so as not to get the opposite effect.

Substances necessary for lemon

In order to grow a citrus plant at home, and even more so if the goal is to achieve fruiting from it, it is necessary to provide the plant with good nutrition. First of all, lemons need nitrogen, more than other trace elements. But it’s not worth feeding the plant with nitrogenous fertilizers alone, you should keep a balance - you need phosphorus, potassium, sulfur, calcium, and magnesium. Ideally, there should be twice as much nitrogen in relation to other elements.

Top dressing of indoor lemon can be carried out using ready-made mixtures. They can be purchased at a flower shop. Such compositions already contain all the necessary trace elements in required quantity and ratio. Additionally, you can add a little fresh manure to the citrus soil. When rotting, nitrogen is released in large quantities, which is so necessary for such plants.

Alternatively, when transplanting a tree, you can mix ready ground with horse manure in a ratio of 1:3. Such a mixture is enough for a flower for about six months, then it will take additional top dressing. Works great for this task. liquid fertilizer, or you can take mineral supplement. In the latter case, it is imperative to dilute the granules with water (1-2 g per liter of water), otherwise the lemon roots will “burn out”. And this, of course, will lead to the death of the plant.


Nutrient application

Folk remedies for feeding

In the event that it is not possible to purchase ready-made dressings, or for some reason there is no desire to use them, you can use folk remedies. Similar mixtures and substances have been used for many decades, and will help create lemons at home. suitable conditions for development.

How to improve productivity?

We are constantly getting letters in which amateur gardeners are worried that due to the cold summer this year, a poor harvest of potatoes, tomatoes, cucumbers, and other vegetables. Last year we published TIPS about this. But unfortunately, many did not listen, but some still applied. Here is a report from our reader, we want to advise plant growth biostimulantswhich will help increase the yield by up to 50-70%.

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The best "food" for citrus fruits

There are a few more interesting options how to feed a lemon at home: pour diluted milk, bury the head of a fish (fresh) in the ground, insist in water banana peel, use water after washing meat and the like. But such a fertilizer should be used with extreme caution, since organic matter can rot. And this threatens not only bad smell, but also the appearance of midges and even the death of the plant. Those methods of feeding lemons that are given above will be quite enough to make up for the lack of some trace elements.

As for the frequency of feeding citrus, it is recommended to carry it out from the beginning of spring to mid-autumn once every three weeks. Additionally, fertilizer can be applied after transplantation or after rooting of a young sprout. For the winter, top dressing should be stopped, the plant is at rest and it does not need additional nutrition as much as during active growth.

How to understand what is missing?

Sometimes it happens that everything the necessary conditions indoor lemons are created for growth, additional nutrition is brought in on time, but still it does not grow, the leaves fall off and other unpleasant things happen. Perhaps this means that the citrus lacks some elements.
And it is not at all necessary to conduct experiments on a green pet, changing the fertilizer and its amount, it is quite possible to determine by the appearance of a lemon what exactly it needs. Accordingly, it remains only to increase the dosage of this substance, and the tree will again look great.


Secrets of growing exotic citrus trees

If you notice negative changes on a lemon in time, you can take necessary measures and prevent disease and death of the plant. In general, if you strictly observe the frequency and dosage of fertilizer, then such problems should not arise.

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Along with other indoor plants, citrus fruits are demanding on care and maintenance conditions. Not all flower growers manage to create the necessary tropical climate for miniature indoor trees. It is also important to feed citrus fruits at home, it provides plants with full growth, flowering and fruiting.

Feeding these houseplants should be done with extreme caution. It is important to follow all the rules for the preparation of fertilizers for application to the soil. Lemon, tangerine, orange and other domestic trees of this family do not like overfeeding. In case of an overdose, the plant loses its appearance and often dies.

Due to the lack of nutrients, citrus becomes weak and vulnerable to many diseases and pests.

Throughout the year, all plants of the Citrus family go through different phases: active growth and dormancy. You need to fertilize them every time with a new mixture of nutrients. For these purposes, seasonal top dressing is used, which you can purchase at any flower growing store or cook yourself.

Nutrition during the growing season

From the end of winter to the end of summer for indoor trees apply top dressing with high content nitrogen. This component ensures the intensive development of plants and contributes to the active growth of green mass. Nitrogen is contained in both organic and mineral fertilizers.

organic

The best organic fertilizer for citrus fruits is horse manure infusion. It is very easy to prepare it. For 1 liter of water, 100 g of the substance is consumed. The resulting mixture is infused for 2 weeks. In the absence of such top dressing, you can use chicken manure or cow manure - 40 g of the substance per 1 liter of water.

mineral

Of the mineral preparations, urea (carbamide) is best suited. It is dissolved in water in the following ratio: 1.5 g per 1 liter of water. You can also use complex fertilizers for decorative leafy plants, sold in a flower grower's store.

Application rules

You can not simultaneously add organic and mineral fertilizers, because from such a glut of nutrients root system plants can get severely burned, causing the tree to die.

The following power scheme is applied:

  1. organics are added first;
  2. after 10 days, mineral supplements are applied;
  3. then again after 10 days organic.

After a while, the actions are repeated in the same order.

Do not use nitrogen-containing top dressing for citrus fruits during flowering and ovary formation. Such a component can provoke their massive fall. At this stage of growth and development, plants are fed with phosphorus-potassium fertilizers. You can resume nitrogen nutrition when the fruit reaches 15 mm in diameter.

Before the rest phase

During this period (August - September), when the plant stops its growth, it is fed with phosphate and potash fertilizers. Nitrogen-containing preparations are also introduced, but in small doses.

To complete the growth process, strengthen young shoots, maintain the crown and maintain immunity at the proper level, flower growers feed citrus fruits with superphosphate and potassium sulfate.

For this purpose, complex dressing for indoor citrus fruits is best suited. It contains phosphorus, potassium and a minimum allowable dose of nitrogen.

Both root and foliar nutrition are carried out. The concentration of substances will be different. Feeding preparation is carried out according to the instructions on the package.

in winter

For plants that winter in a cool place at a temperature of 7-10 ° C and without artificial supplementary lighting, top dressing is not needed. Under such conditions, the tree enters a dormant phase and stops its development until spring.

If a room lemon or tangerine stays in a warm place where the temperature is 19-21 ° C, and receives a full 12-hour coverage, it needs to be fed.

AT room conditions the plant is fed with a balanced mineral fertilizer for citrus plants, reducing the concentration by 3 times. Make it no more than 1 time in 60 days. Feeding is carried out along the leaf and under the root.

Unusual top dressing

Some flower growers use folk remedies for citrus fruits with great success. The most popular are the following.

  1. Herbal infusion. You can prepare such top dressing from the weeds growing in your garden. Weed grass, like useful vegetation, absorbs nutrients and is of great value to plants. For feeding lemon and tangerine, it is recommended to use nettle infusion. 100 g of crushed raw materials from leaves and shoots are poured with water. Leave to ferment for 10 days. Then filter and bring to a volume of 3 liters with water. Used for irrigation of the crown and watering under the root.
  2. Blood water. For cooking, use fresh blood diluted with water, or water after washing meat, fish. It is important that the blood-washed products are fresh. The blood contains the whole complex of minerals and nutrients necessary for citrus for full growth and development.

Foliar fertilizer options

Leaf nutrition plays a big role, as does root nutrition. You can feed lemon at room conditions with various trace elements:

  1. blue vitriol- 250 mg;
  2. zinc (zinc oxide) - 6 g;
  3. magnesium sulfate - 10 g;
  4. potassium permanganate - 250 mg;
  5. boric acid- 200 mg;
  6. iron sulfate - 3 g.

The mass of the components is calculated for 1 liter of water.

How to spot a nutrient deficiency

The appearance of the plant and its general condition will help you determine which micronutrient deficiency your citrus plant is suffering from.

  1. With a lack of nitrogen, the leaves become covered with yellow spots, become pale. Young foliage and shoots are shortened. Nitrogen deficiency leads to the development of chlorosis in domestic lemons.
  2. In a plant that suffers from a lack of phosphorus, the leaves fade, sometimes turn yellow. Such a tree blooms poorly and gives a poor harvest. Its fruits taste sour, have an irregular shape and wrinkled peel.
  3. With a lack of potassium, the leaves curl around the edges, brighten, then turn brown. The plant stops growth and development. Adult shoots die off. The crown becomes slightly leafy. During the flowering period, the leaves massively fall off, the fruits ripen sour.
  4. Magnesium deficiency will be indicated unhealthy leaves, on the edges of which yellow spots. Sometimes yellowness spreads throughout the leaf.
  5. If the leaves become smaller, dark green veins appear on them against the background of a pale color of the leaf plate, then the citrus fruit suffers from a lack of zinc. The shoots show short internodes. The fruits ripen small and sour.
  6. The leaves curl, change their rich dark green color to light green - the plant suffers from a lack of boron. This will also be evidenced by brown spots on the fruits and hard clots of resinous gum.
  7. Constant wilting of foliage on the apical shoots is a sign of copper deficiency. The leaves have irregular outlines, become unnaturally large, dark veins appear. On the peel and pulp of the fruit smudges of resinous gum are formed.

Conclusion

Competent, balanced feeding of lemon at home is the key to the full growth, development, flowering and fruiting of citrus trees. If you follow the above nutrient application technique, you will get healthy tree with delicious fruits.

Citrus fertilizer is required at all stages of crop development, especially when grown indoors. It is extremely important to provide him with thorough and regular care. Since the root system is initially placed in a pot with a limited amount of soil, which requires an order of magnitude more for citrus fruits.

The concentration of nutrients in the soil is often negligible. That is why experts strongly recommend regularly feeding indoor lemon, taking into account its needs.

The type of plant and its appearance largely depend on the quality of the soil, in which phosphorus, potassium and nitrogen trace elements, magnesium, iron, calcium, sulfur, and other useful substances must always be present. The absence of at least one element can cause the lemon to fade over time, and in some cases simply die. It is significant that other components in the soil may be sufficient. In this regard, experts strongly recommend the use of specialized mixtures and fertilizers.

The most effective for citrus fruits are top dressings from minerals and organic elements.

Citrus Fertilizer

Some owners provide their plants with careful and regular care, feeding them, but despite this, they cannot boast of a healthy look and active growth. For such situations, you should use the only true advice. It is advisable to apply fertilizer for citrus fruits, given appearance and the condition of the plant.

Nutrient deficiency and its effect on the plant

  • A deficiency of nitrogen substances affects the yield, health of lemon leaves, and the size of lemons.
  • The lack of phosphorus trace elements disrupts nitrogen nutrition, metabolic processes generally. Leaves lose their green color, become dull, the fruits are additionally compacted.
  • Lack of sufficient potassium can cause an increase in the size of lemon leaves. Their structure and surface becomes uneven, and with a high level of moisture, sticky dew forms.
  • Iron deficiency in the soil is the root cause of chlorosis. This gives rise to a series characteristic features: sheet plates become covered with yellow and pale spots, the fruits become excessively light, over time they simply fall off, signs of drying are traced in the upper part of the fruit.
  • Insufficient potassium is the main cause of poor growth in citrus fruits. Plants look lethargic, spots appear on the surface of the leaves, young shoots do not grow.
  • Negatively affects the development of citrus fruits and deficiency of magnesium, boron, zinc, copper, as well as a number of other elements.

How to fix nutritional deficiencies

Nitrogen. Eliminating the lack of nitrogen elements in a lemon is quite simple, using a 0.5% nitrate solution. For every 10 liters of water, there are 2 tablespoons. Experts strongly recommend preparing an ammonia-potassium nutrient. To prepare it in 10 l pure water add 50 g of saltpeter and 20 g of potassium salt. In order for the granules to fully dissolve in water, they must first be placed in a small liter jar.

Phosphorus. In the vast majority of cases, phosphate fertilizers are represented mainly by superphosphates. Their main feature is that they are extremely poorly soluble in water. Therefore, experts strongly recommend implementing a slightly different approach. Superphosphate (not more than 50 g) is diluted in 1 liter of water, and the consistency must be boiled for 30 minutes. Ready composition can be poured into a large container, and then add liquid in such a way that the volume of fertilizer is brought to 10 liters.

Superphosphate can be applied dry. At home, it is enough to add it to the fermented manure (the ratio of 50 g of the composition for every 10 liters of liquid).

The best option is to add superphosphate to the slurry.

An equally popular way is to scatter superphosphate over the surface of the soil, after which the site must be carefully dug up, or crushed on top with a layer of earth. The easiest way to eliminate phosphorus deficiency is to add wood ash, it is added to freshly plowed soil.

Calcium. Fertilizer is quite simple to prepare using old plaster or lime. It is added to the soil in the zone as close as possible to the root system.

organic. The most sought-after organic nutrient on the market that is used for lemons is slurry. To prepare a nutrient, it is necessary to fill the manure with water and leave it in this state for several days so that the consistency begins to ferment. The fermentation period is directly determined temperature regime environment, at the same time, the estimated time is from 5 to 10 days.

Experts strongly recommend diluting the concentrate with ordinary water, adhering to the ratio: when using bird manure 1 to 15-20, when using cow manure - 1 to 10-15. During fermentation, for each liter of slurry, 2 g of potassium salt and 2 g of superphosphate (if we are talking about bird droppings), 2 g of potassium salt and 3 g of superphosphate (for cow manure) are added.

Slurry has a profound effect on the state of citrus fruits: the intensity of lemon growth accelerates, vegetation proceeds in the active phase, and productivity increases. Fertilizers are best added in the summer, when the plant is traditionally taken outside. Experts strongly recommend the use organic fertilizers very carefully, it is necessary to take into account the condition of the lemon, its appearance, as well as the size of the container in which it grows.

Features of feeding citrus fruits

The plant needs special care in summer time. For fertilizer, use the following mixtures:

  • nitrogen and potassium are introduced at intervals of 1 time in 10 days;
  • slurry and superphosphate - every 4 days after the introduction of nitrogen-potassium compounds, but not more than 2 times a month;
  • slurry - after 2 weeks.

Concerning winter period, then citrus fruits practically do not require any fertilizers, you can add them without a large number of every 2 months. The lion's share of gardeners recommend fertilizing the soil in autumn, but not in winter. Only in the first days of March, the concentration of the normalized dose can be increased.

Professionals add fertilizer exclusively to moist soil and mainly to liquid state, between individual waterings should take small temporary breaks. If liquid is already flowing out at the bottom of the pot, then the soil is sufficiently saturated with moisture.

To increase the concentration of useful trace elements in the soil, you should rely on time-tested and practice methods. Watering the lemon with tea leaves remains effective. During the flowering process, you can add castor oil (for every liter of water, 1 tablespoon of oil).

Unconventional methods are used to increase the amount of iron in the soil. Many gardeners prefer to sprinkle upper layer soil of the old rust, and then dig up the soil. Others prefer planting plants in metal dishes ( cans, old buckets or pans).

An effective way to control pests is to add potassium permanganate.

An excess of this substance can burn the tree or lead to its subsequent death. Such a solution is quite simple to prepare at home. No more than 6 grains of potassium crystals are added to 1 liter of water, and after that the consistency is thoroughly mixed and a 0.012% solution becomes ready for application. The solution should be light red in color.

Experts strongly recommend using these products exclusively for those plants that grow in the front garden or garden. If it's about indoor lemon, then the composition should be diluted with the liquid by half. Watering frequency - 1 time per month.

There are many nutritional supplements on the market. The first thing to consider is the appearance and condition of the plant, the color of the leaves, their size, and the amount of fruiting. From this important criterion and will depend on the most preferred fertilizer.

For many gardeners, the favorite indoor plant is lemon. First of all, it is loved for its beauty: yellow fruits against a background of bright green leaves, white or light purple flowers with a delicate aroma. Flowering continues for a long time, occurs several times a year. The height of the tree is from 30 cm to two meters, and if the crown is formed correctly, it looks very beautiful, organically fits into any apartment, house, office. But the main desire and aspiration of all lovers indoor plants, is to bear fruit. Lemon is extremely useful, rich in vitamins, especially C and P, has bactericidal properties, is an excellent antioxidant, soothes nervous system stimulates appetite. It is used for cosmetic purposes, cooking.

A lemon tree is a capricious plant, if the room is too cold, dry, if cold drafts “walk”, if the soil is excessively wet or vice versa dry, sour, then you will not wait for fruits, flowers, and the leaves will crumble. These plants are afraid of the wind in your room or lack of light in the cold season, disturbance of the earthy coma, hot sun in the summer, sudden changes in temperature, they do not like rearrangements to different places.

For a lemon, you need: supply of fertilizers during the period of growth and flowering, spraying with water, regular transplanting, warm soil so that the roots "breathe".

The ideal soil is a special soil for citrus fruits, which provides minerals: nutritious, loose, slightly acidic or neutral. You can cook it yourself, the composition should be: sod land, manure and foliage humus, washed large river sand, ash deciduous trees, peat. All this is mixed in equal proportions and diluted with water.

Watering is important for any plant, especially grown indoors, and is done as follows:

  • In the summer, the lemon should be watered abundantly in small portions until water appears in the pan. The main thing is to prevent waterlogging of the earth, because the roots rot from this. Water should be consumed warm, from a natural source, rain, melted snow. Tap water must be boiled. Do not forget to regularly spray the tree, wipe the leaves from dust. In dry weather, spray daily, preferably in the evening. When it is rainy and humid outside, it is enough to spray once a week. This process serves another purpose: it helps fight aphids.
  • In autumn, watering is reduced, it is necessary only when the topsoil dries. With the heating turned on, when the air becomes drier, it is necessary to spray the plant daily.

Just watering is not enough, especially if you want to get a crop. How to feed a lemon at home?

In spring and summer, when the tree actively blooms and bears fruit, a home-grown lemon is fed several times a month using liquid mineral and organic fertilizers. This is a pot culture, and the tree has a small amount of soil, which is quickly depleted, so it needs nitrogen, potassium, phosphorus, calcium, sulfur, iron, magnesium.

From organic fertilizers, lovers of this culture are popular horse dung, mullein, droppings of goats, rabbits and birds. To prepare top dressing, fertilizers must be diluted with water one to one and insisted in a sealed container for 8-12 days. Before use, stir the liquid, dilute it with water one to ten. Cow dung is diluted in a ratio of 1:15, and bird droppings - 1:25.

Several times a year, the tree is watered with copper or iron vitriol. The consistency of the solution must be chosen depending on the well-being of the lemon. When obvious signs leaf chlorosis, the concentration of vitriol must be significantly increased. Many amateurs do not forget about the "old-fashioned" methods and use rust: they grow plants in rusty dishes, put rusty iron in the ground, sprinkle rust on the ground. Fertilize the lemon with a solution of potassium permanganate, using it to grow a tree and to fight worms. You only need to do this when the sun has set - potassium permanganate quickly decomposes in the light, and the roots do not have time to take away the nutrients.

We recommend using a set of mineral fertilizers - potassium nitrate, which does not contain chlorine, and granular superphosphate. 5 g of each substance is dissolved in a liter warm water, cool and feed the plant with each liquid separately.

You can use ready-made mineral fertilizers with trace elements. An hour before you are going to feed the plant, it must be watered.

The ash of deciduous trees has a great effect. This potash fertilizer is usually used once a month - the surface of the earth in a pot is not sprinkled with a thick layer. Or they prepare a nutritious infusion from the ashes for 10 days - 1 teaspoon - a liter of water. This solution is used both in summer and in winter, alternately with a solution of potassium permanganate.

Use powdered quinoa leaves.

Many flower growers use tea leaves, pouring it into a pot with a plant. It is rich in a number of trace elements.

During fruit set, water the soil with an emulsion castor oil(1 tablespoon per liter of water).

Since separate feeding of lemon requires experience and knowledge, you can use ready-made solutions. Liquid top dressing for citrus fruits "Lemon" has proven itself very well. It contains the nutritional ingredients necessary for the plant.

Alternate spraying the plant with water with microelements, about 2 times a month - Uniflor micro concentrate (1 g - liter of water) or a weak solution of traditional potassium permanganate (1 g - 10 l of water).

In autumn and winter, the plants “sleep” and fertilizing should be done less frequently. homemade lemon feed no more than 1 time per month. But if the winter is warm and the plant continues to bloom, bear fruit, fertilizers are required 2 times more.

Lemon growing at home, like its counterpart in natural natural conditions winter needs rest. If possible, move the tree to a cool room (+12 - +15 degrees C). If the tree remains warm over the winter, it needs to be additionally illuminated, 8-10 hours a day.

It is necessary to increase the humidity of the air. Do a cool shower regularly for leaves, water warm water, insulate the surface of the pot.

You can use a transparent film on the window where the plant stands.

Note to flower growers

Do not forget to regularly inspect the lemon tree and "treat" it in a timely manner.

Here are some of the problems that come from lack of nutrition:

  • if the edges of the leaves change their color, become brown, brown, yellow - this indicates a lack of trace elements;
  • if the flowers fall off, the ovary - there is not enough potassium;
  • pale shoots, salad-colored leaves, poor plant growth - not enough nitrogen;
  • if the leaf becomes small, the trunk is thin, bends easily - there is not enough nutrition, calcium.

Most importantly, be patient! And take our advice. We wish that your efforts are not in vain and that you regularly enjoy the harvest of your lemons, much tastier and more fragrant than store ones.




1. Foliar top dressing.

Great importance has frequent spraying of tree crowns. Spraying can be combined with foliar top dressing (no more than 1 time per month). For foliar feeding lemons, the following dosages of trace elements can be used:
"copper (copper sulfate) - 250 mg / l;
"manganese (potassium permanganate) - 200-300 mg / l;
"boron (boric acid) - 200 mg / l;
"iron (ferrous sulfate) - 3 g / l;
"magnesium (magnesium sulfane, Epsom salt laxative) - 10 g / l;
"zinc - (zinc oxide) - 6 g / l.

2. General information about fertilizers.

good fertilizer(checked by time)

3. Fertilizers.

Fresh soil mix provides the plant with nutrition for no more than 3-4 months. There are both organic and mineral fertilizers. For example, if you introduce manure that has not completely rotted into the soil, then in the process of decay, bacteria consume a large amount of nitrogen, so the soil is depleted of nitrogen macronutrients. Therefore, it is necessary to apply an increased amount of nitrogen-containing fertilizers. The plant needs, first of all, macronutrients - nitrogen, phosphorus, potassium, calcium, sulfur, magnesium, iron. Most of all, the plant consumes nitrogen.

4. Table of lack of elements.

On the provision of plants with micro and macro elements, it is possible according to the following tables shown below:

4.1. Lack of elements on old leaves.

The nature of the manifestation Element Note

Chlorosis appears on old leaves

Chlorosis begins with the appearance of yellow-green mottling, which spreads throughout the leaf. Gradually, the leaf becomes completely yellow. Young leaves are light green, shoots are shortened Nitrogen The lack of nitrogen and phosphorus depresses the condition of the whole tree, delaying its growth.
The leaves remain green, but lose their glossiness, acquire a dull, and sometimes ocher-yellow hue. Young leaves are narrow and small. Flowering is weak. Low yield. Fruits with thick and rough skin irregular shape and very sour. Phosphorus The leaves tend to take an upright position, forming a right angle to the stem.
The tops and edges of the lower leaves curl down, often acquire notches and folds along the veins, and then brighten, become yellow-bronze at the edges, then turn brown. The development of plants is delayed, some of the adult branches die off and the size of the crown is noticeably reduced. During flowering, strong leaf fall. The fruits are small with a very thin skin. Potassium Symptoms of a lack of magnesium, zinc and potassium are local in nature, capturing not the entire leaf, but only its individual sections, which is expressed in the loss of color (chlorosis), and sometimes in the death of individual sections of the leaf tissue (necrosis).
Initially, chlorosis captures leaf tissues parallel to the midrib, and then spreads in all directions. The very base, and sometimes the tip of the leaf, remains green. Magnesium

The leaves are smaller than normal, pointed, with sharply prominent dark green veins, between them is a light green or light yellow tissue. On the shoots are short internodes with narrow leaves. The fruits are small thick-skinned. Zinc

4.2. Lack of elements on young leaves and shoots.

Where is the lack of elements The nature of the manifestation Element Note

Chlorosis appears on young leaves and shoots

On a light green, yellow or whitish background of leaves, a contrasting network of green veins appears, among which the central one stands out. Shoots are weakened and often die off, plant growth is weakened and gradually stops. Iron

A lack of iron, sulfur or manganese is indicated by the appearance of chlorosis or the loss of green color by young leaves without subsequent death of the apical bud.
The contrast of the green color of the entire vascular system of the leaf (down to the smallest branches) with the yellowness of the tissue between the veins. The pattern of the veins is vague. In the future, gradually increasing spots of dead tissue appear on the leaves, which capture their entire surface. The color of the leaf is duller than with a lack of zinc or iron. Manganese
The veins, and then the rest of the leaf, become light green or light yellow. The green color is lost to a lesser extent than with a lack of iron and manganese, i.e. does not turn completely yellow or white, but still acquires a greater yellowness than with a lack of nitrogen. Necrosis is absent. Sulfur
Young apical leaves first lose their green color and wrap up to the bottom (about one third of their length with an inflection of the central vein), and then their top and edges die off. Subsequently, the tissues of the leaf blade are often torn and the leaves fall prematurely. Calcium A lack of calcium or boron is indicated by the death of the apical bud and the loss of the natural green color of young leaves.
Young leaves lose the normal color of their curved base (the top of the shoot may remain green for some time), become "twisted". The upper leaves are especially distinguished by unhealthy light green color, twisting from the top to the base; watery spots appear on other young leaves, which gradually become translucent. The central veins and some leaflets crack and "cork". There are dark brown spots on the peel of the fruit, hard clots of resinous gum are formed. Bor

Constant fading top leaves resistant in any weather. The leaves are usually abnormally wide, very dark green in color, may be irregular in shape and have an arched central vein. Sometimes a thin network of dark-colored veins stands out against a light green background of the leaf. Subsequently, numerous buds awaken at the ends of the branches, from which abnormally dense and branched shoots develop with short-lived small leaves, and the shoots themselves often bend and take an S-shape. Smudges of resinous gum appear on the peel of the fruit and in the pulp. Copper Accompanied by the death of young shoots.

5. Table of excess fertilizer, poisoning.

It should be borne in mind that only the acidity of the soil from pH 5.5 to pH 7.5 allows you to maintain the optimal ratio various elements in the soil, making them available to citrus fruits.
With excessive fertilization, the plant can be "poisoned".

Symptoms of plant poisoning with excess fertilizer Element Note
Unusually strong growth of shoots and leaves - fattening to the detriment of flowering and fruiting. Nitrogen Excessively high doses can lead to severe plant inhibition. Calcium is deficient.
Yellowing of the leaves, bright necrotic spots appear on them, the leaves fall off. Some leaves are scorched at the edges. Phosphorus A high concentration of phosphorus compounds in the soil is not toxic to the roots, but it worsens its physical and chemical state, reduces acidity. The balance of elements in the soil is sharply disturbed, the lack of potassium, iron, copper and zinc increases.
Severe burns and necrosis along the edges of light green leaves. Plant growth is retarded. the internodes are elongated, the fruits become rough, the peel thickens, the content of sugars and acids decreases. Potassium Magnesium deficiency occurs, thus it is easy to confuse the cause with the effect. Deficiency of calcium, magnesium and possibly manganese.
Chlorosis of tissues between leaf veins. Pale, necrotic spots. Some plants can give increased growth of shoots, but they die off without developing. Calcium Signs of poisoning sometimes resemble those of magnesium or iron deficiency.
The leaves become darker than usual, powerful, sometimes curled Magnesium There is a calcium deficiency.
Chlorosis develops, which begins at the edges of the leaves and spreads towards the middle, especially between the veins, covering the entire leaf blade. Then burns appear on the leaves and they fall off. Bor Damage is possible if 1 liter of top dressing contains at least 1 mg of boron.
Chlorosis develops between the veins of the leaves, later the leaf turns yellow or turns pale. Iron The plant absorbs phosphorus and manganese worse. In principle, excess concentrations of iron in the soil are quite rare, because. in a nutrient solution, it almost always turns into sparingly soluble compounds - hydrates and phosphates.
Appearance brown spots and fall of the lower leaves. Interveinal chlorosis of young leaves. Copper Leads to phosphorus deficiency.
Whitish spots form between the veins. The tops of the shoots die off, and the old leaves fall off. The veins on them turn red or blacken. Zinc The early stage of poisoning is similar to the signs of iron deficiency. This element is also in short supply.
Interveinal chlorosis of young leaves that turn yellow and pale. Dark brown or almost white necrotic spots appear. Manganese In contrast to manganese deficiency, with an excess of manganese, the leaves are bent and wrinkled, dark brown spots appear. The absorption of iron by the plant is inhibited.
Small leaves with a blue-greenish tint, later they bend inward, and their edges are painted in a light yellow color. Sulfur This insufficiency happens very rarely, because. Sulfur is a constituent of many fertilizers used.

6. Optimal fertilizer value.

The optimal ratio of nutrients is an equal amount of nitrogen, phosphorus and potassium.
Lemons are usually fertilized 2-3 times a month, during the period of active shoot growth, i.e. from March to October.
The effectiveness of the use of nitrogen and potash fertilizers increases markedly with the simultaneous use of trace elements. Them full set can be purchased in tablet form. 1 tablet is dissolved in several liters of distilled water (in ordinary water, microelements can react with substances dissolved in it and break down) and are applied during irrigation no more than 1 time in 2-3 months.
Useful monthly watering with a pink solution of potassium permanganate. Potassium permanganate decomposes in the light, so it is better to carry out such watering "at night", when it is almost dark.
Also, once a month, lemons are watered with iron sulfate (1-2 g per 1 liter of distilled water), with obvious chlorosis, the concentration is increased to 20-40 g per 1 liter. water.
In practice, the most convenient are ready mixes full fertilizer for citrus. It is important that they do not expire, because. at long-term storage components can give useless, and even frankly harmful complexes.
It is better not to use non-specialized mixtures of fertilizers, because. they often contain potassium chloride, and citrus fruits do not tolerate chlorine.

7. Composition and concentration of fertilizers for top dressing every 10-15 days.

Month fertilizers Concentration g/l
March slurry

Superphosphate

slurry

100

5

100

April Superphosphate

potassium sulfate

5

3

1

May Urea

Superphosphate

Complex fertilizers with trace elements

1,5

5

1

June Urea

potassium sulfate

Superphosphate

1,5

3

5

July Chicken manure slurry

Boric acid

slurry

40

0,2

100

August Potassium permanganate (potassium permanganate)

Complex fertilizers with trace elements

0,2

1

September Complex fertilizers with trace elements 1

8. Grandpa's Fertilizer Recipes.

" Phosphorus fertilizer completely replace carpentry (bone) glue. 2 g of glue is boiled in a liter of water until it loses its gelatinity. An hour after watering, the surface of the earth is loosened.
"The lack of nitrogen is easy to make up for by replacing the surface layer of the earth in a pot with silt. The source of nitrogen is powdered quinoa leaves.
"Complete lime-phosphorus-potassium fertilizer - ordinary wood ash. It does not contain only nitrogen. The correct dosage of ash for citrus fruits is 1 tbsp. spoon for 1 liter. water.
"Sleeping tea contains phosphorus, potassium, iron salts, magnesium, manganese, sodium, copper, etc. in much smaller quantities. Sleeping tea usually covers the surface of the soil. It is even more effective to mix the sleeping tea with the ground when transplanting.
"How to use manure: dilute dry manure with boiling water, bringing to the density of kefir. Close the container with a lid and let stand for a day. Before watering, it is useful to add a little urea there - 1 g per 1 liter of slurry, because there is no nitrogen in dry organic matter. Cow, bird and horse manure is usually used in a well-fermented form, otherwise their action is not so effective.Usually, fermentation takes up to 1.5 months at a temperature of less than +10? C and 10-12 days at a temperature of +25 C.
"A solution of manure with quinoa. Put 1/3 mullein + 1/3 raw chopped quinoa on a bucket of 8 liters and pour everything hot water(It smells awful - you need to cover it with a lid). Stir occasionally. Roams 3 - 4 days. Then strain and bottle. The concentration for irrigation depends on the type of manure: horse manure - 1:8, cow dung- 1:10, bird droppings - 1:25. Some experts recommend using freshly prepared solutions of the same concentration. When watering, you can alternate fermented and daily infusions.
"It is advisable to alternate several types of fertilizers. For example, in the first dressing - manure infusion, in the second - ash extract, in the third - carpentry glue.

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