Scourges of cucumbers turn yellow than to feed. Cucumber leaves turn yellow - why this happens, what to do about it, how to water and how to feed cucumbers against yellow leaves. Why cucumbers have risen, and then do not grow, stand still: reasons, what applications
From this article you will learn what to do if cucumbers grow poorly, do not tie, leaves turn yellow.
Why cucumbers grow poorly, slowly or do not grow at all in a greenhouse, greenhouse, in an open field garden: the main reasons
There are many reasons why cucumbers are in open ground grow poorlyCucumbers do not grow well, stand still in a greenhouse or open field the following reasons:
- Poor soil, lack of nutrients
- poor quality seeds
- Plants got sick
- Incorrect or insufficient watering
- Plants densely planted
- Pollination does not occur
If you have been planting cucumbers in one place for several years in a row, in a greenhouse or greenhouse, then one of the reasons why cucumbers do not grow well may be soil depletion. You can correct this situation in late autumn, when there are no more plants, as follows:
- Remove a layer of soil from above (20-25 cm).
- Add new soil, some sand and fertilizer (peat, chicken manure or humus), and dig everything up.
- In the spring, before planting cucumbers (2 weeks in advance), fertilize with nitrogen into the soil where there will be a bed with cucumbers.
Poor soil in the garden or cottage before planting cucumbers, you must also fertilize with chemical fertilizer with nitrogen. Often experienced summer residents manage folk remedies, which are applied dry before planting or watered with plants during flowering and fruiting:
- Manure
- chicken manure
- Dried and then ground banana skins (when rotting, they will flavor the earth with potassium and nitrogen)
- Infusion of green weeds
Let's cook green weed infusion
- Weeds plucked from the ground are soaked in water.
- Let's ferment for 10 days.
- Add 1 liter of infusion to 1 bucket of water
- Water cucumbers when you need to feed them
Video: Why cucumbers do not want to grow? Causes and Solutions
Why did cucumbers sprout, and then do not grow, stand still: reasons, what folk remedies and fertilizers should be used, and how?
One of the reasons why cucumbers do not grow well is improper watering.
In order for plants to sprout well, seeds only need to buy good quality, in trusted stores.
After the first leaves appeared on the plants, so that they grow faster and take root they need to be fed. Suitable for feeding:
- A solution of nitroammophoska (1 tablespoon per 1 bucket of water)
- Infusion of cow dung diluted a few days before use in water (0.5 l per 10 l of water)
- Nettle infusion
- Barely pink solution of potassium permanganate
Cucumbers love moisture, but they cannot tolerate excess water., air humidity is not less than 85%, and the heat is not more than 35ᵒC. If the weather is cloudy, we water the cucumbers in the garden in 2-3 days, and if it is hot, then every day, not with tap water, but with settled water. Water should not fall on the leaves, pour under the root.
How often, and how much, to water? We try the cucumbers that have appeared, if they are bitter, then we increase the watering.
Cucumbers lack moisture
If a cucumbers lack moisture, and it’s hot outside, then the following happens to the plants:
- Plant growth slows down
- Leaves turn yellow and may wither completely
How to find out what cucumbers too much moisture?
- The stem of the cucumber at the base is brownish and as if glassy.
- The roots of the plant are yellowish-brown, did not grow, but stand still.
If a plants densely planted, they also grow poorly and produce little fruit. For normal growth between plants, you need to leave a distance of 20 cm or more.
If the weather is good pollination cucumbers in the garden are usually no problems, insects do it. But if the fruits do not set, cucumbers can be helped to pollinate. To do this, we take a brush, and we drive it, first along the male flower (it is with pollen), and then along the female flower (already emerging small cucumber).
If you have a large garden with cucumbers, and pollination cannot be carried out, then we arrange stress for the plants: we stop watering for a while - and the growth of female flowers increases.
And what about in a greenhouse with pollination? Now scientists have developed varieties of cucumbers with female flowers that do not require pollination, it happens by itself, just a small draft is enough. Only self-pollinating varieties should be planted in the greenhouse.
Why cucumbers grow poorly and do not bear fruit: reasons, what folk remedies and fertilizers to use and how?
Cucumbers don't grow well
The reason why cucumbers do not bear fruit well may be as follows: all the forces the plant spends on the growth of the main trunk, and, as you know, cucumbers mostly give more fruits from the side lashes. It is necessary to pinch the main stem of the plant when it reaches 1 m in length, and the side branches - 0.4-0.6 m. You also need to tie up the plant.
Ordinary brilliant green or iodine can accelerate the growth of cucumbers in swampy areas, they have a lot of copper needed for cucumbers. For 1 bucket of water, add 10 drops of brilliant green or 5 ml of iodine, and water the cucumbers. Such a solution, moreover, treats plants from root rot.
Iodine with milk can cure cucumbers from powdery mildew. We take 9 liters of water and 1 liter of low-fat milk, add iodine (10-12 drops), and you can spray the plant.
You can increase the yield of cucumbers with ash. The ash contains many microelements, the main of which are: calcium - for growth, potassium - for the formation of the ovary. Ashes can be sprinkled on the ground around the bushes, or an infusion can be prepared in advance.
Cooking ash infusion:
- Pour 1 glass of ash with 5 liters of water.
- We insist 10 days, stirring.
- When you need to feed the cucumbers (up to 6 times per season), we take 1 glass of ash infusion per 10 liters of water, and pour it under each bush.
Important. To prepare the ashes, you need to burn tree branches or dry grass, not paper, all kinds of garbage and plastic.
You can increase the number of ovaries on cucumbers with the help of the remnants of dried bread. Yeast in bread activates the growth of cucumbers.
Cooking sourdough bread:
- We take 2 parts of crackers and 3 parts of water, pour it into a saucepan with a lid, and put a load on top so that the crackers do not float.
- We insist in heat for 1 week.
- We filter and can be used.
- For top dressing, we take 1 part sourdough to 3 parts water.
- Diluted sourdough can be used to feed cucumbers in a greenhouse or garden once every 10 days.
Important. Bread sourdough is acidic, so it works well for alkaline soil, and if your soil is acidic, then a little chalk or dolomite flour should be added to the sourdough before watering.
You can also increase the number of cucumbers on the bush, you can make the plant more hardy with the help of baker's yeast. Pour a pack (100 g) of yeast with 10 liters of water, let it stand for 3 hours, and pour over the cucumbers.
Important. You can feed cucumbers with yeast 2 times per season, no more.
A good crop of cucumbers can be harvested if manure diluted in water is used for feeding.. We dilute fresh manure with water 1:20, dry 1:4, insist 10 days, and then you can use it.
Video: Types, forms, mode of dressing cucumbers. Folk recipes
Why cucumbers do not grow well, leaves turn yellow, wither: reasons, what folk remedies and fertilizers to use and how?
Folk recipes will help bring back to life cucumbers that begin to turn yellow
If the leaves begin to turn yellow and wither on the cucumbers, the plant can return to life an infusion of onion peel. The infusion is made from 8 liters of water and 1 cup of husk. Pour the husks with water, boil, set aside, let cool and use as top dressing.
A solution will help stop further yellowing of leaves on cucumbers. baking soda (1 tablespoon of soda per 10 liters of water), if they are sprayed on plants.
If the leaves on cucumbers begin to turn yellow, you can apply this method: pour 2 liters of kefir into 1 bucket of water, and water the plants.
Also feed the plant, if the leaves begin to turn yellow, you can use a solution of chicken manure. We do it like this:
- We take 1 part of the litter and fill it with 3 parts of water.
- We insist 5 days, stirring.
- Add 4 more parts of water, and water the cucumbers.
How to use supplements correctly?
- You can feed cucumbers under the root only in warm weather, after watering.
- In cold weather, we feed the cucumbers by spraying on the leaves.
- It is impossible to apply nitrogenous fertilizers and ash at the same time, since a lot of ammonia is released, and cucumbers can dry out.
Why there are a lot of ovaries on cucumbers, but the fruits are small and grow poorly: reasons, what folk remedies and fertilizers should be used, and how?
There are many flowers on the plant, but cucumbers are not tied
If a plants bloom well, and cucumbers grow small and twisted, which means that there is not enough nitrogen in the soil. In the people, such cucumbers are advised to feed:
- diluted humus
- Weak solution of ordinary baker's yeast
- Infusion of onion peel
- chicken manure
- Ashes mixed in water
- It is also possible with chemical nitrogenous fertilizers, except for ammonium nitrate (accumulates in fruits), but only at the very beginning of growth, when there are no fruits yet
If there is enough moisture for plants, and cucumbers grow crooked, then there is not enough nitrogen in the soil
Top dressing should be watered cucumbers 4 times per season:
- 2 weeks after germination
- During flowering
- When they start to bear fruit
- And again during fruiting to prolong the cucumber season
More signs when there is not enough nitrogen in the soil:
- One side of the cucumber is thinner than the other
- The leaves of the plant are pale green
- The lashes of the plant are thin tree-like
But also excess nitrogen is also harmful to the plant. Here are the reasons when the soil has a lot of nitrogen, but little phosphorus and potassium:
- The leaves are large, lush, dark green, but the cucumbers are not tied.
Solve the problem of lack of phosphorus and potassium, top dressing with diluted wood ash, it has a lot of missing elements.
Cucumbers stopped growing because it's cold - what to do: tips
During spring frosts, some gardeners cover cucumbers with metal arcs and modern textiles.
In cold weather, plant growth is inhibited, the roots do not absorb nutrients well. in order for the cucumbers to grow, experienced vegetable growers advise after watering, in the morning or in the evening, in cloudy weather, to spray the cucumber bushes completely, aqueous solutions(10-15 g of funds for 1 bucket of water) funds "Kemira", "Crystallion", "Mortar". When it's cold, it's better to feed cucumbers through the leaves.. You can also spray the bushes with water with a growth stimulator added to it ("Epin").
Other lovers of growing vegetables in the beds, during a cold snap, install arcs and cover with a film, but under the film it is cold and damp for plants, therefore it is better to cover with a special material (agrotex, lutrasil) which appeared not so long ago. Also, it is known that plants in the dark tolerate cold better, so experienced plant owners cover the plant with tarpaulin, rags and straw for the time of frost.
- We dig a groove 30 cm deep
- Spread it with a thin layer of tops, potato peelings, grass without seeds, cover with earth
- In the spring we plant cucumbers, they are much warmer in such a bed than in a regular bed.
So, now we know what to do if the cucumbers do not grow well, the leaves turn yellow, the cucumbers do not tie.
Video: Why do cucumber ovaries turn yellow?
Kirill Sysoev
calloused hands do not know boredom!
Content
The task of the gardener is to obtain good harvest. Unfortunately, when growing cucumbers, yellowing of the leaves in spots or along the edges often occurs. To solve this problem, you need to establish the cause of the phenomenon, take specific actions aimed at preserving the crop.
How to treat cucumbers for diseases
Yellowness on the leaves is a sign of the following diseases:
- Cucumber mosaic - the virus infects young leaves a month after planting. Aphid serves as a peddler.
- Fusarium is a fungal disease that leads to thinning of the stems, browning of the tissues. The spread of infection is facilitated by increased soil moisture.
- Pitiosis is a fungus that affects the root system. A prerequisite for its development is unbound moisture in the soil.
- Peronosporosis - harms in all phases of development of garden crops, dangerous even for seedlings. Fungal disease reproduces by spores.
How to process cucumbers so that the leaves do not turn yellow with spots? Biological preparations that do not pose a threat to the human body help to overcome pathogenic bacteria. The products contain beneficial bacteria that suppress pathogenic flora. The preparations are used for the treatment of seed and as garden crops develop:
- Trichodermin;
- Planriz;
- Pentaphage C;
- Fitosporin M;
- Gamair;
- Alirin B.
How to spray cucumbers from pests
Another reason for the yellowing of cucumber leaves is pests that suck juices from plants. These include:
How to process cucumbers so that the leaves do not turn yellow from pests:
- Against the whitefly, a folk remedy helps - tobacco planted around the perimeter of the garden. The accumulation of these pests on leaves and stems can be treated with Inta-Vir, which causes paralysis in insects.
- The spider mite is afraid of spraying with garlic or onion infusion (200 g of husk per bucket of water).
- Aphids do not tolerate ash treatment (200 g per 10 liters of water with 50 g of grated laundry soap) or Inta-Vir.
How to process cucumbers with a lack of nutrition
The leaves turn yellow with a lack of nutrients - potassium, magnesium. Dark green streaks indicate a lack of iron, manganese. With a deficiency of copper, the upper part of the plants dries. How to sprinkle cucumbers so that the leaves do not turn yellow? Plants can be treated with top dressing:
- Agricola for pumpkin - contains a set of useful trace elements;
- fermented liquid manure infusion diluted with water (proportion 1:10);
- urea in the calculation of 1 tbsp. l. on a bucket of water for 1 sq. m.;
- ordinary ash obtained after burning firewood or grass.
Zelenka and iodine for cucumbers
Folk remedies are successfully used by vegetable growers in the fight against diseases of garden crops. Zelenka for cucumbers has an antiseptic property. Copper, which is part of the drug, makes it a valuable fertilizer, especially useful on swampy soils. Iodine for cucumbers in a greenhouse, at the right dosage, treats plants for diseases, improves the growth of vegetable crops.
How to process cucumbers so that the leaves do not turn yellow? Do this:
- Add brilliant green (10 ml), whey (2 l), urea (50 g) to 10 l of water. Treat cucumbers at the beginning of flowering and a couple more times at intervals of a week. Instead of whey, milk will do.
- Mix water (9 l), skimmed milk (1 l) and iodine (10 drops). Spraying cucumbers with iodine serum should be done so that the foliage and soil under it are moistened.
- Combine serum (1 l), water (10 l), iodine (40 drops), peroxide (1 tablespoon). Treat plants infected with late blight 2-3 times in the evening at intervals of 10-12 days.
When cucumber leaves, luxurious and green just yesterday, suddenly began to turn yellow, urgent measures must be taken to save the plant. This is a symptom of a serious illness, so it should not be ignored. Consider what caused unwanted changes in the green color of the leaf cover of cucumbers and how to deal with it.
The main causes of yellowing leaves
There are several reasons for the yellowing of cucumber leaves, which can be determined by taking into account the place where the plants are grown (open ground, greenhouse, greenhouse), the shape and location of necrosis spots on the leaf plate. The most common reason is non-compliance with agricultural practices for growing or mistakes in caring for plants. Sometimes yellowness on the leaf plates indicates an acute lack of nutrients or the development of infectious diseases.
Wrong watering
Cucumbers are very fond of water, the lack of moisture causes dehydration of plants and the first signal of the drying of the root zone may be yellowing of the leaves.
Watering should be regular (ideally - every evening) and in sufficient quantity.It is easy to check whether your cucumbers have enough moisture: if the soil of the bed is moist at a depth of more than 15 cm, everything is in order and there is enough moisture.
Important!Too much water for a cucumber is also not always good, especially in cold weather. Waterlogging in this case can cause rotting of the roots and fruit ovaries. If the air temperature falls below 10° C, watering the beds should be temporarily suspended.
Fertilizer errors
The rapid growth of the above and below ground can deplete plants and cause nutrient deficiencies. This deficiency causes yellowing on the leaves. In the process of growth, cucumbers need to be fed several times with fertilizers that contain enough nitrogen and other nutrients. useful material.
Low temperatures
Cucumbers are tropical plants and need a humid and very warm climate. For their successful cultivation, full compliance with the optimal temperature regime is necessary. It is known that the ovaries of cucumbers gain mass only at night, and if the air temperature drops below 10 ° C, the growth of fruits stops and the leaves turn yellow. This is a normal reaction of a tropical plant to low temperatures.
burns
Thermal burns occur after watering cucumbers in hot weather and appear as red or yellow-brown spots. The drops of water remaining on the leaves, when the rays of the sun hit them, act as an air lens, which causes burns. That is why it is recommended to water cucumbers only in the evening (after 16 hours) and always under the root.
Pests and diseases
In diseased plants, wilted or yellowed foliage is often observed - the cause of this is fungal and viral diseases. The most common disease among pumpkin crops, to which cucumbers also belong, is Fusarium damage.
Roots can be damaged by insect pests, or violent activity of moles, mice or shrews. Also, the roots of the plant can be damaged during weed control (weeding, loosening). Violation normal development root system can be the cause of yellow leaves.
Did you know? The great commander and at the same time the French emperor Napoleon Bonaparte loved and appreciated cucumbers. Being on the campaigns for a long time, he felt a shortage of these vegetables, and therefore they were promised a huge reward (equal to about 250,000 modern dollars) to a person who would suggest an effective way to keep cucumbers fresh during the winter. History is silent on whether anyone received this award.
What to do and what to feed: we understand in more detail
Before starting to take measures to save the yellowing cucumber lashes, you need to carefully understand the reasons.
Yellowing and curling
Twisted and yellow cucumber leaves are an alarming sign that indicates problems in growing:
- Nutrient deficiencies. If, during a visual inspection of the beds, it was noticed that the leaf plates lost their brightness and their edges began to turn down, it is possible that the plants lack nitrogen fertilizers. If it is clear that the leaf has grown in length, but has not added in width at all, the plantings need complex feeding.
- The scourge of cucumbers is powdery mildew. Usually pumpkin and gourds exposed to this disease in late June - early July. In a diseased cucumber plant, yellow and twisted leaf plates are observed. In order to prevent this, or to cure already diseased plantations, treatments are carried out with a solution of Bordeaux liquid (one percent) or other chemical preparations. If plantings are in a greenhouse or greenhouse, regular ventilation and drafts are necessary.
- Insect pests. If the leaves lose their brightness, turn yellow and curl into a tube, it is possible that harmful insects have settled on the cucumbers. Turn the leaf blade over and inspect it. Most likely, it will be covered with small aphids or spider mites. You can fight this scourge with chemicals(insecticides or acaricides). It is necessary to spray the affected plants with special preparations, and after 10-12 days, repeat the treatment to consolidate the result.
- Viral diseases. If the cultivation technique is observed (temperature regime, top dressing, treatment for diseases and pests), but deformed or yellowed leaves still appear on cucumber plantings, this indicates that the disease is viral in nature. Such a plant must be immediately removed from the garden, taken out of the garden and destroyed by fire. These measures will prevent the viral disease from spreading to all plantings.
- Sunburn or lack of heat. Yellowing cucumber leaves often signal non-compliance with the temperature regime for growing crops. Low night or daytime temperatures, or the contact of the leaf cover of plants with the cold walls of the greenhouse, lead to curling of the leaves. This feature must be taken into account when planting young plants in greenhouses or greenhouses, and do not plant them too close to the walls of a temporary shelter.
- Dry air. As mentioned above, cucumber loves moist and warm air. If there is not enough moisture in the air and the plant experiences "water hunger", then to reduce the leaf surface from which moisture will evaporate, a wide leaf plate will be rolled into a tube. This problem is easily eliminated by abundant watering.
Did you know? The ancient Roman emperor Tiberius was the initiator and founder of the greenhouse economy. Based on his desires and needs, the subjects invented and built glazed rooms, where cucumbers for the emperor were grown in the cold season.
Yellowing of lower leaves
Usually this trouble happens with leaves located near the ground itself, since when unfavorable conditions for growth arise, the plant sends all the nutrients to the upper part, where the growth point and fruit ovaries are located. Therefore, the appearance of yellowing lower leaves is not always caused by a disease. Sometimes this is a natural process of vegetation - the leaves turn yellow and soon fall off when the plant tries to get rid of excess leaf mass (ballast).
The reasons for this phenomenon:
Important!Infected leaf blades must be cut off, taken out of the greenhouse or garden and destroyed with fire. This will stop the spread of the disease throughout the greenhouse or cucumber beds. It must be remembered that fungal diseases develop very quickly.- if urgent measures are not taken, then within two to three days the spores of the fungus can destroy the entire cucumber plantation.
Yellowing around the edges
When a gardener notices that the edges of a cucumber leaf begin to turn yellow, you need to figure out the reasons and urgently take measures to save the vegetable plantation.
- Fungal diseases. This form of leaf necrosis is characteristic of powdery mildew disease that begins on cucumbers. The combination of rainy cold weather and yellowing of the edges of the leaf cover requires urgent processing of cucumbers with Bordeaux liquid (one percent solution). You should not make the solution of Bordeaux liquid more saturated, as this threatens the plants with death (you can burn it).
- Lack of moisture in the air and soil. These reasons can also provoke cucumbers to the appearance of yellowness and shrunken edges on the leaves.
- Lack of mineral nutrition, possibly potassium. If the edge of the cucumber leaves brightens in relation to the center of the leaf, this border indicates an urgent need for the plant to carry out top dressing, preferably complex.
Yellowing of ovaries and leaves
A sharp drop between heat and a drop in temperature (usually together with rains) provokes the appearance of fungal diseases on vegetable crops. In this case, you need to immediately treat the cucumber plantings with chemical (Kvadris, Topaz, Thiovit Jet) or biological preparations.
Absolutely harmless, but effective infusions for the treatment of cucumber lashes: whey with sugar for sticking (1 teaspoon of sugar is taken per 1 liter of whey), garlic water (100 g of ground garlic per 2 liters of water, mix and leave to infuse for 24 hours) .
If yellowness appeared not only in the lower part of the plant, but also captured the upper leaf plates - it's time to save the plant. By ignoring these signals, the gardener may be left without a crop.
Did you know? Cucumber has firmly entered the culinary traditions of mankind since the time of the Mesopotamian civilization - more than four and a half thousand years ago. The first to start growing cucumbers as a cultivated plant were the inhabitants of India.
Reasons for this:
- lack of lighting- very often for this reason leaves and cucumber ovaries turn yellow. The fact that there is not enough light for the lower part of the plant is not so critical, however, if the upper, fruit-bearing part of the plant experiences a lack of sunlight, you need to quickly look for a way out. If the culture is grown in greenhouse conditions, then, if necessary, it is necessary to wash the contaminated walls and ceiling of the greenhouse. If the problem is in constant cloudy weather, the plantings need to be artificially illuminated with the help of fitolamps (from 4 to 12 hours a day).
- Cold air and ground. Low temperatures contribute to the yellowing and death of cucumber ovaries and leaf cover. In greenhouse cultivation, the situation can be corrected by raising the air temperature with heating system before desired temperature. If in a greenhouse warm air, the temperature of the soil rises accordingly.
- Lack of mineral nutrition. Watering not only gives the plants the necessary moisture, but also washes out of the soil minerals(nitrogen, potassium). Therefore, they must be applied under the root of the plants several times per season. This problem is solved by the introduction of complex mineral top dressing.
VIDEO: WHY DO THE OVERS ON CUCUMBERS TURN YELLOW AND DO NOT GROW?
The best air temperature for growing cucumbers
Before fruiting:
- in sunny weather - from 22 to 24 ° C;
- in the absence of sunlight - from 20 to 22 ° C;
- at night - from 17 to 18°C.
- in the daytime, in sunny weather - from 23 to 26 ° C;
- in cloudy weather - from 21 to 23°C;
- at night - from 18 to 20°C.
yellowing spots
If yellow spots began to appear on the green leaf plate, it is most likely that the cucumbers are affected by one of the fungal diseases.
In addition to this, one more possible reason the appearance of such spots on the sheets - sunburn. There is a burn in the presence of a scorching sun and drops of water on the leaves of a cucumber. In no case should cucumbers be watered at noon, during the hottest time of the day. Make it a rule to supply moisture to cucumber plantings in the evening.
Did you know? The longest cucumber in the world was grown by a gardener from England, Alf Cobb. Length unusual cucumber reached 91 cm 7 mm. The record holder cucumber was presented by the gardener who grew it at an agricultural exhibition in the city of Bath, which is located in the southwest of England.
Features of caring for cucumbers with yellowed leaves
Consider the causes of yellowing of cucumber leaves on plants planted in open ground. The reasons may be different. In order for cucumber lashes and leaves to be powerful and healthy, it is advisable to adhere to the correct agricultural practices in growing crops.
In the open ground
In the greenhouse or on the balcony
It is the non-observance of agricultural cultivation techniques (temperature conditions, top dressing, moisture supply, treatments for diseases and pests) that causes diseases of plants in the greenhouse. The very first signal that the plants feel bad may be the yellowing of the leaf cover.
Cucumbers in a greenhouse
To restore health to cucumbers, you need to adhere to the following growing rules:
Did you know? The small Ukrainian city of Nizhyn has been famous for its delicious cucumbers. The variety of cucumbers grown there is called Nezhinsky. A monument to the Nezhin cucumber was erected on the forecourt of this city.
If cucumber leaves began to turn yellow in plants planted in pots, you should determine the cause and act accordingly:
You can buy a ready-made mixture of inorganic dressings, or you can “compose” it yourself. Mix 10 g of ammonium nitrate, superphosphate, potassium salt in 10 liters of water and use this solution for root dressing of container cucumbers. Handle this type of top dressing carefully, as the solution, falling on cucumber leaves, can burn them.
Prevention of yellowing
To prevent the disease of a cucumber plantation, you must adhere to several rules:
- observe the recommended distance (20-25 cm) between plants when planting in a permanent place;
- provide good lighting;
- adhere to the optimal temperature regime (avoid "heat stroke" or hypothermia);
- do not turn the garden "into a swamp", but do not keep the plants on dry rations;
- in greenhouse cultivation, ventilate the room and arrange drafts;
- timely process plantings from diseases and harmful insects;
- regularly carry out complex and mineral top dressing;
- saturate the soil with oxygen by loosening;
- tie up plants, avoiding contact of cucumber lashes with the soil;
- regulate the load of fruits;
- harvest on time.
Did you know? Only less than 5% of the total mass of the cucumber falls on useful substances and minerals, while the remaining 95% of the mass of the vegetable is water.
In order to prevent yellowing of cucumber leaves, it is possible to treat the cucumber plantation with biologically active solutions that are harmless to human health. Here are some recipes:
Recipe #1
Milk and soap solution- pour a liter of milk into an empty ten-liter bucket, add 20 g of grated laundry soap and 30 drops of iodine. Fill the bucket to the top with lukewarm, clean water.
Stir the contents of the container until the laundry soap is completely dissolved in water. This tool can be used to process cucumber plantations on a leaf every decade. You can start using this tool as soon as the cucumber throws out two pairs of real (not cotyledon) leaves!
Recipe number 2
Black bread and iodine- one loaf of black bread is poured with 10 liters of water for several hours. After the bread swells, it is kneaded in water with your hands and the contents of one bottle of iodine are added to the mixture. The resulting concentrate is used only in a diluted state. For the treatment of plants, one liter of a concentrated solution is taken and mixed with 10 liters clean water. Cucumbers should be treated with this solution on a leaf every 14 days. Store the remaining solution in a dark and cool place.
Video: Bread dressing with iodine for cucumbers
Recipe number 3
onion peel- to prepare the infusion, you need a can of husk with a capacity of 0.7 liters. This amount of onion peel is poured with ten liters of water, the mixture is brought to a boil, closed with a lid and left to infuse overnight. In the morning, the cooled and filtered concentrated solution is ready for use. For spraying, the concentrate is diluted, for every 2.5 liters of concentrate, 10 liters of pure water are taken. The solution is sprayed with cucumbers on the leaf. You can use this tool every week. Was this article helpful?
Thank you for your opinion!
Write in the comments what questions you did not receive an answer to, we will definitely respond!
14
times already
helped
Cucumber is one of the most difficult crops to grow. It needs frequent watering, constant fertilization and protection from diseases and pests. Is it possible to achieve a good harvest only with the help of organic matter and trace elements?
It is difficult to find a person who would not like fresh or pickled cucumbers. But in order to grow them on your site, you should make a lot of effort, since this pumpkin culture is quite picky about the composition of the soil and top dressing. A lot of problems are added by the poor digestibility of fertilizers by cucumbers, so you need to constantly monitor the composition and amount of microelements introduced and, if necessary, increase or reduce the dosage. What recipes will help you get a guaranteed harvest?
How to feed cucumbers after germination
The first feeding of seedlings should be carried out no later than 10-14 days after germination (when two true leaves are formed). To do this, young plants are watered with a solution of mullein mixed with warm settled water in a ratio of 1:10 or a solution of chicken manure (in proportion with water 1:12).
You can also prepare a nutrient mixture from the following ingredients: add 10 g of ammonium nitrate, 10 g of potassium salt and 10 g of superphosphate to 10 liters of water. This amount of the composition should be evenly distributed over 10-15 plants. After another 14 days, a second top dressing should be carried out, doubling the amount of dissolved fertilizers. In this case, the solution should not fall on the green parts of the plants.
How to feed cucumber seedlings after planting
Moving to a new "place of residence" is associated with a new portion of stress for seedlings of cucumbers, so she will again need top dressing. Use preparations of Kemira Universal, Aquarin (at the rate of 5-7 g per 10 liters of water) or nitrophoska at the rate of 30 g per 1 sq.m. 5 days after transplanting, water the bed with a pink solution of potassium permanganate.
Before planting seedlings, rotted manure is added to the ground at the rate of 6-8 kg per 1 sq.m.
Every 10-15 days after planting cucumbers in open ground, add mullein (in a ratio of 1:10) or bird droppings(1:20). Periodically water the cucumbers with a solution of ash (2 cups per 10 liters of water). For 1 sq.m of plantings, add 5 liters of top dressing.
Two or three times per season, you can feed the cucumbers with Agricola 5 for cucumber (add 1 tablespoon of the drug to 10 liters of water). For 1 sq.m, 4 liters of the resulting solution will be required. Also use Effecton O (for 10 liters of water you need 2 tablespoons of the drug, consumption - 4 liters per 1 sq.m).
How to feed cucumbers for good growth
By the beginning of flowering, a set of nutrients should be provided that will allow cucumbers to accelerate growth and fruiting. To do this, add microfertilizers containing boron to the mullein solution (1 granule per 1 liter of water). A good top dressing will also be a solution consisting of 10 liters of water, 0.5 g boric acid, 0.4 g of manganese sulfate and 0.1 g of zinc sulfate.
From the moment the buds are formed, cucumbers will need the maximum set of trace elements. To do this, for every 10 liters of mullein solution, add 40 g of superphosphate, 10 g of potassium sulfate or 20 g of potassium magnesia. For each plant, 200-250 ml of the composition is required.
It is better to fertilize in the summer at the same time as abundant watering.
Additionally, you can add 20 g of potassium nitrate, 30 g of ammonium nitrate and 40 g of superphosphate. For foliar top dressing, use one of the following compositions to choose from:
- 1 tsp boric acid and 10-12 crystals of potassium permanganate per 1 liter of water;
- 35 g of superphosphate per 10 liters of water.
How to feed cucumbers during fruiting
It would seem that if fruiting has begun, then the cares of the gardener can be considered complete. This is not entirely true, because the plant spends most of its forces on this "operation". Therefore, it must be supported.
Feed cucumbers with infusion of green grass mixed with water in a ratio of 1:5. From mineral fertilizers, use potassium nitrate (25-30 g per 10 liters of water), urea (50 g per 10 liters of water), ash (1 cup per 10 liters of water). For foliar feeding, use 10-12 g of urea dissolved in 10 liters of water.
How to feed cucumbers that do not grow well
Even if, at first glance, you did everything right and fed and watered cucumbers in a timely manner, they can still slow down growth. And a big mistake at this time would be to refuse to fertilize. On the contrary, in order to "charge" drooping plants with "vigor", something from organic matter should be added.
For example, take onion skins and fill a 3 liter container with it. Then fill it with boiling water (temperature 80-90 ° C) and leave for a day, stirring occasionally. When the infusion is ready, dilute it in a ratio of 1:10 with plain water and start watering the cucumbers. Such a "potion" should stimulate the growth and fruiting of plants.
How to feed cucumbers in June
In June, you should continue to saturate the cucumbers with nutrients. Complex fertilizers can be prepared according to one of the following recipes. Add 25 g of nitroammophoska and Stimulus 1 or 30 g of any garden fertilizer with trace elements per 10 l of mullein solution (1 liter of the composition should be enough for 4-5 plants).
Growth retardation is indicative of unfavorable conditions environment and nutrient deficiencies
Nettle infusion will also benefit the cucumbers - prepare about 5 liters of chopped nettles and put it in a 10-liter container with water. Let it brew for 5 days. Dilute the finished preparation with water in a ratio of 1:10 and pour cucumbers under the root (consumption - 1 liter per bush).
A good stimulant is top dressing based on fresh yeast. Use 100 g of yeast per 10 liters of water, let it brew for a day and water the beds at the rate of 0.5 liters per bush.
How to feed cucumbers if the leaves turn yellow
Another problem that gardeners often face is yellowing of the leaves. This may be due to excess light, improper watering, or pest activity. With a lack of potassium and magnesium, the edges of the sheet turn yellow and dry. Yellowing of the upper leaves indicates a lack of copper, and green veins against a yellow leaf indicate an iron deficiency. Therefore, it is necessary to apply fertilizers rich in those substances that the plant lacks the most.
The simplest recipe is a collection of several herbs: horsetail, nettle, chamomile, tansy. As an additive, ordinary grass is also suitable. The chopped herb should be placed in a ceramic container and filled with ¾ of it with warm water, then covered with a lid and left in the light for 3-4 days so that the mixture ferments. Dilute the finished infusion with water in a ratio of 1: 9 and add a handful of ash. Under the bush, you can make up to 1 liter of the composition.
A preparation based on kefir will help return the cucumbers to their former freshness: mix 2 liters of the product with 10 liters of water. After mixing, sprinkle cucumbers evenly.
To prevent late blight and eliminate signs of yellowing of the leaves, you can use an iodine solution or a solution of fermented milk. Mix sour milk (kefir) and water in a ratio of 1:10 and add a few drops of iodine. Under the bush, add about 1 liter of solution.
How to feed pale cucumbers
Sometimes yellowness from the leaves is quickly transferred to the fruits. First of all, this indicates a lack of nitrogen. "Quick" dressing consists in the introduction of urea - 1 tbsp. per 10 liters of water and watering at the rate of 3-5 liters per plant. You can also use ammonium sulphate (with a nitrogen content of 20-21%), the application rate is 25-40 g per 1 sq.m.
How to feed cucumbers after the cold
The weather sometimes makes its own adjustments to the cultivation of cucumbers, and sudden cold weather can seriously harm this crop. To prevent this from happening, after cool weather, cucumbers must be protected from possible consequences.
Nitrogen top dressing does not stop even after harvest
First of all, the occurrence of powdery and downy mildew should be prevented. To begin with, stop watering and fertilizing for a week. Then spray the bushes with a solution consisting of 3 liters of whey, 7 liters of water and 1 tsp. copper sulfate.
For prevention, use Fitosporin-M (10 g per 5 liters of water), spray three times with an interval of 10-15 days. Ecosil is also suitable (30-40 drops per 3 liters of water), spray twice with an interval of 10-14 days.
How often do you need to feed cucumbers in the ground
As you have already seen, cucumbers, especially those growing in open ground, need regular feeding. In some cases, the number of dressings can reach 5-6 per season:
- the first top dressing - during the appearance of 2-3 true leaves;
- the second top dressing - immediately after transplantation;
- the third dressing - during budding;
- the fourth dressing - during the flowering period;
- fifth dressing - during fruiting.
Now you know everything about fertilizers and top dressings, it remains only to put in a little work and patience to get an excellent harvest of crispy, delicious cucumbers.
Feeding cucumbers is one of the most difficult crops to grow. It needs frequent watering, constant fertilization and protection from diseases and pests. Is it possible to achieve a good harvest only with the help of organic matter and trace elements?
It is difficult to find a person who would not like fresh or pickled cucumbers. But in order to grow them on your site, you should make a lot of effort, since this pumpkin culture is quite picky about the composition of the soil and top dressing.
A lot of problems are added by the poor digestibility of fertilizers by cucumbers, so you need to constantly monitor the composition and amount of microelements introduced and, if necessary, increase or reduce the dosage. What recipes will help you get a guaranteed harvest?
How to feed cucumbers after germination
The first feeding of seedlings should be carried out no later than 10-14 days after germination (when two true leaves are formed). To do this, young plants are watered with a solution of mullein mixed with warm settled water in a ratio of 1:10 or a solution of chicken manure (in proportion with water 1:12).
You can also prepare a nutrient mixture from the following ingredients: add 10 g of ammonium nitrate, 10 g of potassium salt and 10 g of superphosphate to 10 liters of water. This amount of the composition should be evenly distributed over 10-15 plants. After another 14 days, a second top dressing should be carried out, doubling the amount of dissolved fertilizers. In this case, the solution should not fall on the green parts of the plants.
Moving to a new “place of residence” is associated with a new portion of stress for seedlings of cucumbers, so she will need to feed again. Use preparations of Kemira Universal, Aquarin (at the rate of 5-7 g per 10 liters of water) or nitrophoska at the rate of 30 g per 1 sq.m. 5 days after transplanting, water the bed with a pink solution of potassium permanganate.
Before planting seedlings, rotted manure is added to the ground at the rate of 6-8 kg per 1 sq.m.
Every 10-15 days after planting cucumbers in open ground, add mullein (in a ratio of 1:10) or bird droppings (1:20). Periodically water the cucumbers with a solution of ash (2 cups per 10 liters of water). For 1 sq.m of plantings, add 5 liters of top dressing.
Two or three times per season, you can feed the cucumbers with Agricola 5 for cucumber (add 1 tablespoon of the drug to 10 liters of water). For 1 sq.m, 4 liters of the resulting solution will be required. Also use Effecton O (for 10 liters of water you need 2 tablespoons of the drug, consumption - 4 liters per 1 sq.m).
In June, you should continue to saturate the cucumbers with nutrients. Complex fertilizers can be prepared according to one of the following recipes. Add 25 g of nitroammophoska and Stimulus 1 or 30 g of any garden fertilizer with trace elements per 10 liters of mullein solution (1 liter of the composition should be enough for 4-5 plants).
Growth retardation indicates both unfavorable environmental conditions and a lack of nutrients.
Nettle infusion will also benefit the cucumbers - prepare about 5 liters of chopped nettles and put it in a 10-liter container with water. Let it brew for 5 days. Dilute the finished preparation with water in a ratio of 1:10 and pour cucumbers under the root (consumption - 1 liter per bush).
A good stimulant is top dressing based on fresh yeast. Use 100 g of yeast per 10 liters of water, let it brew for a day and water the beds at the rate of 0.5 liters per bush.
From the moment the buds are formed, cucumbers will need the maximum set of trace elements. To do this, for every 10 liters of mullein solution, add 40 g of superphosphate, 10 g of potassium sulfate or 20 g of potassium magnesia. For each plant, 200-250 ml of the composition is required.
By the beginning of flowering, a set of nutrients should be provided that will allow cucumbers to accelerate growth and fruiting. To do this, add microfertilizers containing boron to the mullein solution (1 granule per 1 liter of water). A good top dressing will also be a solution consisting of 10 liters of water, 0.5 g of boric acid, 0.4 g of manganese sulfate and 0.1 g of zinc sulfate.
It is better to fertilize in the summer at the same time as abundant watering.
Additionally, you can add 20 g of potassium nitrate, 30 g of ammonium nitrate and 40 g of superphosphate.
For foliar top dressing, use one of the following compositions to choose from:
- 1 tsp boric acid and 10-12 crystals of potassium permanganate per 1 liter of water;
- 35 g of superphosphate per 10 liters of water.
How to feed cucumbers during fruiting
It would seem that if fruiting has begun, then the cares of the gardener can be considered complete. This is not entirely true, because the plant spends most of its forces on this “operation”. Therefore, it must be supported.
Feed cucumbers with infusion of green grass mixed with water in a ratio of 1:5. From mineral fertilizers, use potassium nitrate (25-30 g per 10 liters of water), urea (50 g per 10 liters of water), ash (1 cup per 10 liters of water). For foliar feeding, use 10-12 g of urea dissolved in 10 liters of water.
How to feed cucumbers that do not grow well
Even if, at first glance, you did everything right and fed and watered cucumbers in a timely manner, they can still slow down growth. And a big mistake at this time would be to refuse to fertilize. On the contrary, in order to "charge" drooping plants with "vigor", something from organic matter should be added.
For example, take onion skins and fill a 3 liter container with it. Then fill it with boiling water (temperature 80-90 ° C) and leave for a day, stirring occasionally. When the infusion is ready, dilute it in a ratio of 1:10 with plain water and start watering the cucumbers. Such a "potion" should stimulate the growth and fruiting of plants.
How to feed cucumbers if the leaves turn yellow
Another problem that gardeners often face is yellowing of the leaves. This may be due to excess light, improper watering, or pest activity. With a lack of potassium and magnesium, the edges of the sheet turn yellow and dry. Yellowing of the upper leaves indicates a lack of copper, and green veins against a yellow leaf indicate an iron deficiency. Therefore, it is necessary to apply fertilizers rich in those substances that the plant lacks the most.
The simplest recipe is a collection of several herbs: horsetail, nettle, chamomile, tansy. As an additive, ordinary grass is also suitable. The chopped herb should be placed in a ceramic container and filled with ¾ of it with warm water, then covered with a lid and left in the light for 3-4 days so that the mixture ferments. Dilute the finished infusion with water in a ratio of 1: 9 and add a handful of ash. Under the bush, you can make up to 1 liter of the composition.
A preparation based on kefir will help return the cucumbers to their former freshness: mix 2 liters of the product with 10 liters of water. After mixing, sprinkle cucumbers evenly.
To prevent late blight and eliminate signs of yellowing of the leaves, you can use an iodine solution or a solution of fermented milk. Mix sour milk (kefir) and water in a ratio of 1:10 and add a few drops of iodine. Under the bush, add about 1 liter of solution.
How to feed pale cucumbers
Sometimes yellowness from the leaves is quickly transferred to the fruits. First of all, this indicates a lack of nitrogen. "Quick" top dressing consists in the introduction of urea - 1 tbsp. per 10 liters of water and watering at the rate of 3-5 liters per plant. You can also use ammonium sulphate (with a nitrogen content of 20-21%), the application rate is 25-40 g per 1 sq.m.
The weather sometimes makes its own adjustments to the cultivation of cucumbers, and sudden cold weather can seriously harm this crop. To prevent this from happening, after cool weather, cucumbers must be protected from possible consequences.
Nitrogen top dressing does not stop even after harvesting.
First of all, the occurrence of powdery and downy mildew should be prevented. To begin with, stop watering and fertilizing for a week. Then spray the bushes with a solution consisting of 3 liters of whey, 7 liters of water and 1 tsp. copper sulfate.
For prevention, use Fitosporin-M (10 g per 5 liters of water), spray three times with an interval of 10-15 days. Ecosil is also suitable (30-40 drops per 3 liters of water), spray twice with an interval of 10-14 days.
How often do you need to feed cucumbers in the ground
As you have already seen, cucumbers, especially those growing in open ground, need regular feeding. Their number can reach 6-7 per season:
- the first top dressing - during the appearance of 2-3 true leaves or immediately after planting seedlings in the ground;
- the second top dressing - during budding;
- the third top dressing - during the flowering period;
- the fourth top dressing - during fruiting.
In between root dressings, 2-3 foliar dressings (by leaves) can be carried out.
Now you know everything about fertilizers and top dressings, it remains only to put in a little work and patience to get an excellent harvest of crispy, delicious cucumbers.