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1. If you find that the roots have turned yellow, black, and soft, and gently pull the rhizosphere with your hands, the epidermis is very easy to tear off, and only the lignified part remains, indicating that the plant has rotten roots.
2. If the nose smells the roots of the plant, if there is a smell, it means that the plant has rotted at all.
3. The nose smells the water smell of hydroponic plants, if the water smells, it means that the root of the plant may also rot and deteriorate.
Causes of root rot in hydroponic plants.
1. Dissolved oxygen in hydroponic water.
The content is low, causing the plant roots to die due to lack of oxygen.
This situation is more obvious in the summer, and the container can be shaken directly to improve the nutrient solution.
The content of dissolved oxygen in .
2. The water flooded all the roots and even the rhizomes.
This is also a place that people tend to overlook in family soilless cultivation. Generally the best cultivation is to leave half of the roots in water while exposing the other half to the air. In this way, the oxygen supply to the roots of the plant can be greatly increased, which can effectively reduce the occurrence of root rot.
3. Check the quality of the water.
If the water quality is found to be turbid or smelly, the water should be changed in time to ensure the normal growth of the plants.
4. Temperature.
One aspect of the large temperature here refers to the temperature of the water, because the high temperature can cause the aging of the plant's root system. Therefore, the maximum temperature of the water should not be maintained above 30 degrees for a long time, which is a big factor in summer. The general solution is to avoid direct sunlight and add shade netting if necessary.
Tips: Green plants, hydroponic plant rotten root treatment method.
1. After the rotten roots are found, all the rotten roots should be removed or removed, and the infected part of the stem should be cut off if it is infected.
2. The treated flowers are immersed in potassium permanganate solution.
Soak for 10-20 minutes to sterilize, spray potassium permanganate solution into the original cultivation container for disinfection.
3. Take out the soaked flowers, rinse them with water, and clean the original cultivation container at the same time.
4. After the plant rots roots, just use water to raise it, and then add nutrient solution after the plant adapts to the environment and grows new roots.
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Hydroponic vegetables refer to vegetables that are cultivated in the form of traditional soil cultivation in which most of the roots grow in the nutrient solution layer and only provide water, nutrients and oxygen to them through the nutrient solution. Hydroponic vegetables have a short growth cycle and are rich in a variety of vitamins and minerals that are essential for the human body. Hydroponics is a type of soilless culture, classified as substrateless cultivation, the type of substrateless cultivation refers to the environment where the plant roots grow without substrate to fix the root system, and the root system grows in a nutrient solution or moist air containing a nutrient solution, but some substrates may be used when raising seedlings.
To grow hydroponic vegetables, prepare a watertight hydroponic box in advance. And choose the vegetables to be hydroponic, rinse its roots, and cut off the dead old roots and rotten roots after simply combing the roots. After disinfection, it is rinsed again with water and then planted in a hydroponic tank.
It is necessary to pay attention to changing the water and not to use too poor water quality for breeding.
Vegetable seedlings grow to the planting period, and after the seedlings are lifted out of the soil or soilless cultivation substrate, they should not be planted directly on the cultivation container, but should be planted after special treatment. How to deal with it:
1. Wash off the soil or other cultivation substrate of the root system with clean water;
2. Cut off old or dead roots, dead skin and excess lateral roots;
3. Soak the root system in hydroponic plant disinfectant for 15-20 minutes to sterilize, disinfect, and play a role in domestication.
4. Rinse with water several times again and plant on the cultivation container.
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Good evening, according to your question, the reason why hydroponic vegetables can grow without roots: the development of hydroponic vegetables has such a period, and the requirements for the environment are more stringent when rooting, so many times the nutrients in the water also need to be added regularly. I believe that many players will have this feeling about hydroponic plants for a long time, in fact, if the plant does not take root for a long time, you can consider adding aspirin to the water Before use, you must crush the aspirin into pieces, which contains rich salicylic acid is a good promotion for the rooting of the plant, and the plant can take root smoothly soon after joining.
Usually, it can be slowly decomposed by throwing it directly into a hydroponic container, but its effect is slower than if it were not rented. The use of dregs as a normal growing plant does not affect its practical value at all. To maintain sufficient nutrients, different plants have different absorption of nutrients, and it is actually normal to cultivate them in different ways, because hydroponic plants have relatively high requirements for the environment.
If it is only cultivated with water, then the nutrients needed by the plant will be very scarce, and hydroponic plants are often inferior to soil-grown plants in terms of nutrient absorption. <
I hope my answers help you and wish you good health and a happy life. <>
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Summary. The reason why hydroponic cabbage roots only grow stems may be due to the following reasons: the concentration of nutrient solution in hydroponic cabbage is too high, which causes the roots to fail to absorb enough water and nutrients, which in turn affects the development and growth of the root system, making the root system underdeveloped.
At the same time, the lack of microbial ecological environment in the soil in the hydroponic environment, and the lack of interaction between microorganisms and roots, make the root growth stagnant. The solution can be to adjust the concentration of hydroponic nutrient solution to ensure the balance of nutrients, increase the amount of water and oxygen, and at the same time give the roots of cabbage the opportunity to interact with other microorganisms to promote the better development of the root system.
Can you tell us more about that?
The reason why hydroponic cabbage roots only grow stems may be due to the following reasons: the concentration of nutrient solution in hydroponic cabbage is too high, which causes the roots to fail to absorb enough water and nutrients, which in turn affects the development and growth of the root buried system, making the root system underdeveloped. At the same time, the lack of microbial ecological environment in the soil in the hydroponic environment, and the lack of interaction between microorganisms and roots, make the root growth stagnant.
The solution can be to adjust the concentration of hydroponic nutrient solution to ensure the balance of nutrients, increase the amount of water and oxygen, and at the same time give the roots of cabbage the opportunity to interact with other microorganisms to promote the better development of the root system.
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Summary. Why does hydroponic cabbage root only grow stems? This may be due to the lack of certain nutrients in the water, such as nitrate, phosphate, potassium, etc., which causes the root system to not develop properly, resulting in only stem body growth in the water and no cabbage leaves.
In addition, too high or too low temperature may also affect the normal growth of hydroponic cabbage roots, so the temperature should be controlled well and a suitable growth environment should be maintained to make hydroponic cabbage roots grow better.
Can you tell us more about that?
Why does hydroponic cabbage root only grow stems? This may be due to the lack of certain nutrients in the water, such as nitrates, phosphoric acid lead salts, potassium salts, etc., which cause the root system to not develop properly, and then only stem bodies can grow in the water and cannot produce cabbage leaves. In addition, too high or too low temperature may also affect the normal growth of hydroponic cabbage roots, so the temperature should be controlled and a suitable growth environment should be maintained in order to make hydroponic cabbage roots grow better.
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Summary. Hello dear! There may be several reasons why hydroponic vegetable seedlings do not grow and the roots turn yellow, here are a few solutions::
1.Impure water quality: The use of tap water, well water, or water containing a lot of microorganisms may cause vegetable seedlings to turn yellow and grow slowly.
It is recommended to replace it with pure water, or use a commercially available hydroponic nutrient solution. 2.Nutrient insufficiency:
If the nutrient concentration in the hydroponic solution is too low, the vegetable seedlings will not be able to get enough nutrients, and they will turn yellow and grow slowly. It is recommended to use commercially available hydroponic nutrient solutions and follow the manufacturer's instructions. 3.
The temperature is too low: If the water temperature is below 12, the root system of the vegetable seedlings will stop growing, causing the plant to turn yellow. It is recommended to keep the water in a warm place and keep it between 15-22.
4.Lack of light: If vegetable seedlings do not receive sufficient sunlight, yellowing will occur.
It is recommended to place the hydroponic device in a place full of sunlight and expose it to sunlight for at least 4 hours a day. 5.pH is unstable:
If the pH value is too high or too low, it will affect the root growth of vegetable seedlings. It is recommended to use a commercially available pH regulator to adjust the pH value of the hydroponic solution to between. To sum up, in order to solve the problem of hydroponic vegetable seedlings not growing and yellowing roots, it is necessary to investigate and adjust from multiple angles.
Hello dear! There may be several reasons why hydroponic vegetable seedlings do not grow and the roots turn yellow, here are several solutions:1
Impure water quality: The use of tap water, well water, or water containing a lot of microorganisms may cause vegetable seedlings to turn yellow and grow slowly. It is recommended to replace the car with pure water, or use the hydroponic nutrient solution on the market.
2.Insufficient nutrients: If the concentration of nutrients in the hydroponic solution is too low, the vegetable seedlings will not be able to get enough nutrients, and they will turn yellow and grow slowly.
It is recommended to use the hydroponic nutrient solution available on the market and follow the manufacturer's instructions. 3.The temperature is too low:
If the water temperature is below 12, the root system of the vegetable seedlings will stop growing, causing the plant to turn yellow. It is recommended to keep the water in a warm place and keep it between 15-22. 4.
Lack of light: If vegetable seedlings do not receive sufficient sunlight, yellowing will occur. It is recommended to place the hydroponic device in a place full of sunlight and expose it to sunlight for at least 4 hours a day.
5.Unstable pH: If the pH is too high or too low, it will affect the root growth of vegetable seedlings.
It is recommended to use a commercially available pH regulator to adjust the pH value of the hydroponic solution to between. To sum up, in order to solve the problem of hydroponic vegetable seedlings not growing and yellowing roots, it is necessary to investigate and adjust from multiple angles.
Behind is the solution, pro.
Hello, dear. <>It may be caused by factors such as insufficient sunlight, unstable pH value, insufficient nutrients, and too low temperature
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Hydroponics, also known as "hydroponics", is one of the main types of soilless culture. Hydroponics is a cultivation method that creates a relatively closed environment that can store nutrient solution through specific facilities, and keeps the water, fertilizer, gas, heat and other conditions required for root growth relatively stable, and all or part of the root system is "soaked" in the nutrient solution.
In the strict sense of the word, hydroponics is pure soilless cultivation. Because there is no intermediate adsorption and buffer medium between the root system and the nutrient solution, it is a direct "soaking" contact. For plants to grow healthily, the first thing to do is to ensure that the root system is growing well, and whether the root system grows well depends on the rhizosphere environment.
The temperature, oxygen, pH, ion concentration and the ratio between different ions in the rhizosphere environment should be appropriate. And whether the mineral nutrients in the nutrient solution are complete, whether the anion and ion are balanced, whether it contains toxic and harmful substances, whether it contains pathogenic microorganisms, pests, etc., will be manifested in the appearance of the root system. If the root system is white, firm, elastic, not twisted, not discolored, and not broken, it proves that the root system is growing healthily.
When the root system grows healthily, the plant can absorb water and fertilizer normally, and the aboveground growth of the plant will be normal. On the other hand, if the root system shows the phenomenon of blackening of the root tip, yellowing of the root system or even decay, the stems and leaves, flowers and fruits of the aboveground part of the plant will also show "abnormal" symptoms. Therefore, hydroponic technology is one of the scientific research methods to test whether the plant nutrients are complete and whether the rhizosphere environment is suitable.
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Soilless vegetables do not come into contact with the soil, the root system will definitely be white, because there is no soil staining, and it has been soaked in the nutrient solution, the root system will be like this, even if people's hands and feet have been soaked in water, it will be white, so it is normal for the roots of hydroponic vegetables to be white.
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Because these roots are not stained with soil, they are all nutrient solutions to maintain growth, and the root system is naturally white.
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Soilless cultivation is basically soaked in water. They all have special water and special nutrient solutions. There is not much sunlight, so its roots are generally very white.
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Soilless cultivation, the root system of hydroponic vegetables is particularly clean, because the water quality feels that the water is often changed, and the water has a scouring effect.
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Soilless cultivation, no soil pollution, completely dependent on hydroponic vegetables, of course, the root system is white.
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If the soil is too hard and the chemical fertilizer is not in place, the roots will not grow and the nutrients will not be absorbed.
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Because of the lack of nutrients, it may be related to light, or it may be caused by the condition of the soil.
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This may be due to a lack of nutrients, or it may be due to a lack of water.
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Hello, glad for your question. 1.Too much density causes growth, seedlings crowding each other, and poor plant growth, so it is necessary to plant reasonably densely.
Lettuce is generally sown in strips with a row spacing of 25 cm. When the seedlings grow to 2 leaves and 1 heart, the skin is redated and the time seedlings are planted, and the plant spacing should be kept at about 6 cm. The seedlings are fixed at the 3-4 leaf stage, and the plant spacing is about 25 centimeters to meet the needs of normal growth and development.
2.Lack of light causes poor growth and emaciated plants. Lettuce requires good light conditions, so when choosing a land, it is necessary to consider choosing a plot with plenty of sunlight and no shade around.
Greenhouse cultivation should consider the cleanliness and light transmittance of the shed surface, and remove leaves and snow in time in rainy and snowy weather to ensure the light time. 3.Lettuce will also be weak when the water and fertilizer conditions are not suitable.
The soil is dry, the lettuce grows slowly, the leaves are aging, and the lack of fertilizer will also cause the leaves to turn yellow, so it is necessary to ensure that there is no shortage of water and fertilizer throughout the growth period. If there are symptoms of fertilizer deficiency, foliar fertilizer can be sprayed, and 5 kg of urea can be applied to the bulb lettuce at the rosette stage.
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