How do potted orchids prevent root rot?

Rotten roots are all due to lack of oxygen, so don't water too much, just water a little a day, and then remember to loosen the soil so that the roots won't rot.

First, you should usually ventilate the room, second, don't water too much, third, fertilize regularly, and fourth, don't be exposed to the sun for a long time, so that the plants can grow better.

Newly planted orchids have rotten roots, which is soft rot. Orchids with soft rot will gradually rot from the central leaves, and then gradually spread to the false bulb, once the false bulb rots, the orchid seedlings are more difficult to survive. Because it will gradually spread to the root system, and even infect other orchid seedlings, it is difficult to treat at this step.

Soft rot of orchids occurs in a high-temperature and high-heat environment, in an unventilated environment. Usually pay attention to the prevention of soft rot, it occurs quickly. If it is found that the disease is already more serious, you can only give up the infected seedlings to protect other orchid seedlings.

Because of the speed at which it spreads as well as the speed at which it is infected, it may continue to deteriorate if not protected in time. If the root rot of the orchid is not serious, it should be treated in time.

Clause. 1. Remove the soil.

Remove all the original soil, take out the root system, and find the place where the rotten roots are repaired. Do not keep any rotten roots to reduce the occurrence of pathogens, and then soak the bactericidal drugs to prevent the continued infection of germs. You can use carbendazim or mancozeb, these bactericidal drugs can be soaked for about 20 minutes, which can have a bactericidal effect.

Then leave it in a cool, ventilated place to dry for 20 minutes, and then plant in fresh, loose and breathable soil.

The planting soil can be planted with fermented bark, peanut shells and other soft planting materials, plus some granular planting materials, such as volcanic rock, red brick particles to increase the soil voids, increase the permeability of the soil, you can also use newly bought orchid planting soil. However, many friends have their own soil allocation methods for raising orchids, which is also a matter of opinion.

Clause. Second, slow seedlings.

After planting the orchid, put it in a cool and ventilated place, ventilation is also very important, and you must not ignore it. To keep the soil warm, you can often spray the foliar surface to keep it warm. When watering, avoid the problem of water accumulation in the heart of the leaf, and find that the water must be dried in time, most of the problems of rotten roots and rotten hearts are due to the problem of water in the heart of the leaf is not dried in time, and the temperature is too high to cause bacterial infection.

Clause. 3. Insect control.

Usually pay attention to prevent small insects, you can sprinkle some small white medicine in the flower pot with balance wheels. Prevent the occurrence of various pests and diseases, reduce the occurrence of orchid wounds, and do not give germs a chance.

Soft rot mainly occurs in new seedlings, so newly planted seedlings are prone to this problem. Because the seedlings grow very fast and fragile, they have poor resistance to the environment. In a weak environment, it is more susceptible to pests and diseases.

As long as the orchid plant is raised strong, it can increase the resistance of the plant and is not easy to produce any soft rot. If you have soft rot, you must treat it in time to prevent it from spreading to other orchid plants.

Orchid rotten root remedy:

1. Prune the root system

Dig the orchid out of the soil, knock off the soil on the roots, then gently rinse the roots with clean water, cut off the dead roots and rotten roots with sharp scissors, and then disinfect the roots of the plant with potassium permanganate solution or carbendazim to remove the remaining germs on it to avoid reinfection.

2. Ventilation and drying roots:

After cleaning, it should not be directly potted for maintenance, but should be placed in a cool and ventilated natural drying root, and the wound should be dried until the time when the curls begin. The main purpose of this is to make the root system of the orchid lose some of the water, make it easier to serve the pot, and also improve the recovery speed of the wound to a certain extent, making it easier to save life.

3. Potting maintenance:

The most important point in remediating after an orchid has rotted roots is to replace the soil. It is best not to use the original soil, but to use bark, ceramsite or phytolites to make a simple cultivation soil to ensure a certain degree of soil permeability and drainage, which is conducive to the recovery of plants after potting. Plant the orchid in the soil and store it in semi-shade to avoid direct sunlight.

4. Done. Just pay attention to daily cultivation.

It is very important not to fertilize the orchid before it has been potted, as too much fertilization will cause the orchid root system to become more burdensome and difficult to grow. At this time, the vitality of the root system is poor, so it should be allowed to recover on its own, draw nutrients from the soil, and recover slowly, without rushing.

How to raise orchids without rotting roots? It is enough to use 1 kind of ash, and the orchid plant absorbs well and will not cause root rot.

Water is the source of all things, and the growth of orchids must have water in order to absorb and transport nutrients and carry out normal metabolism. Orchid is an aerial root plant, in the process of its growth required water**, a small part of the moisture in the air supply, most of the water must be absorbed by the cultivation substrate contained in the water, the root also from the substrate pores in the orchid pot to absorb oxygen for respiration. If the substrate in the orchid pot is poorly drained and the moisture content is too high, the water will fill the substrate pores, resulting in water accumulation, the substrate pores are filled with water and lack of oxygen, the root system is suffocated by hypoxia, and the root function is gradually lost over time, and at this time, the root system will rot due to the invasion and reproduction of harmful bacteria.

1. Select a good substrate for seed orchids.

The substrate should be filtered and breathable, moist but not waterlogged, dry but not dry. Now there are a lot of special materials for orchid planting on the market, and they are also very applicable, such as Emei Mountain soil in Sichuan, bentonite soil in Chongzhou, and a variety of orchid special soil in Guangdong, which are all good orchid cultivation materials. It is also possible to mix part of the humus soil in these materials to supplement the lack of fertility.

It can also be taken from local materials, such as weathered soil, broken bricks, broken charcoal particles, broken oak bark, etc., mixed with an appropriate amount of humus, the effect is also very good, not only can filter water and breathe, but also moisturize and not waterlogging, and have a certain fertility. However, it should be noted that the materials used must be non-toxic, sterile, non-polluting, and free of insect egg parasitism, otherwise it will also bring harm to the root system of orchids. 。

Second, the water used to water orchids must be clean.

Polluted water, unclean water cannot be used. There are many orchid books to introduce that streams and rivers are the most suitable for orchids to grow, but most orchid friends live in cities and do not operate orchid gardens professionally, so it is difficult to do so according to this requirement. Watering orchids with tap water, the author has seen from many years of practice, the effect is also very good, if there is a condition, put the tap water in a bucket or basin for a few days, so that the chlorine in the water volatilizes off it is better.

If you use spring water or pond water to water the orchid, you should pay attention to the pH value test strip to test the base pH value, the pH value is less than 5, you can add alkaline substances such as lime to adjust, the pH is greater than that, you can use hydrochloric acid, acetic acid, citric acid, etc. to adjust.

3. No matter what texture of the orchid basin is used, the bottom of the basin must have proper holes, and it is better to have a few holes around the lower part of the basin wall.

No matter what texture of the pot is used, the bottom of the pelvis must have proper eyelets, and it is better to have a few holes around the lower part of the pelvic wall. In short, it is necessary to be able to ventilate and filter water. When planting orchids, the lower part of the orchid pot can be padded with a layer of broken bricks or charcoal grains to facilitate drainage and ventilation.

The placement of the orchid pot should make the air circulation of the bottom and wall of the pot, and if possible, the orchid can be used to overhead the orchid pot, so that the effect is better. To grow a good orchid, you need to have a suitable temperature, humidity, light and other environments, but creating a good environment for the orchid root is the most important part.

The roots of orchids are relatively thick and hypertrophied, and there is generally no distinction between taproot and branch roots, almost the same thickness, and it is a typical fleshy root. The outermost layer of the root is the root tissue, the middle layer is the cortical tissue, the cells are relatively developed, and the inner layer of the root is the central column, that is, the linear "tendon" that remains after the root decays. In the process of cultivation, people often divide the plants and transplant the roots accidentally break the root system and cause trauma, or use too fine soil, too much fertilizer, and too much watering to cause root rot.

As soon as the roots rot, the orchid seedlings died, commonly known as "inverted seedlings", which is the most headache and the most painful thing for the orchid people. Why do orchids rot their roots? The main reason is that the long-term watering is too much and too much, the potting soil is muddy, the water squeezes out the air, hinders the respiration of the root system, and the root is oxygen-free, causing the root system to suffocate and cause rot, commonly known as "drowning".

This is the reason why the crops in the fields died after soaking in the water for several days. Methods to prevent root rot: in order to preserve the root system, first of all, we must use soil with good air permeability, commonly used are bark, charcoal, broken bricks, ceramsite, etc., there is a certain gap between the grains, the replacement rate of air and water is fast, and there is no water accumulation phenomenon no matter how much water is watered, which is conducive to the growth of root roots.

Second, we must apply fertilizer reasonably. Langen is afraid of thick fertilizer, afraid of raw fertilizer, and fertilizer that is not fully rotted (made) must not be used. It is best to use inorganic fertilizers for orchid farming.

However, a single chemical fertilizer can not be used, and all-element compound fertilizer should be used, which is nutritionally comprehensive, and the dosage is small, easy to master, can increase disease resistance, and prevent physiological diseases and insect pests.

Orchid rotten roots are the most likely to occur in orchid breeding, the roots of orchids rotten are not treated in time, orchids can only die, whether it is a novice in raising orchids, or a veteran of raising orchids will have rotten roots, veterans are experienced, the probability of rotten is small, that is, whether the orchid rotten roots or related to orchid technology.

1. If it is caused by insufficient light, then increase the light appropriately and do not be exposed.

2. If the growth environment is not ventilated, then increase ventilation appropriately.

3. If it is caused by a large amount of watering, then reduce the amount of watering, and then water after the potting soil is dry.

4. If it is caused by too much fertilizer, then reduce the amount of fertilizer and apply thin fertilizer frequently.

In fact, orchids like a moist environment, but the fleshy roots of orchids are afraid of waterlogging, so it is easy to rot roots if they are too wet or rainy, leading to many diseases. So how can you prevent orchid root rot?

Orchids (details).

In winter, orchids are in the dormant or slow growth stage, and the potting soil should be dry; Spring and early summer are important periods for the growth of orchid peanut roots, and the potting soil should be moist. However, long-term overhumidity is also easy to cause root rot, causing leaves to wither and even die. Because of excessive water, the soil is waterlogged and the air permeability is poor, resulting in insufficient oxygen, hindering the respiration of the roots, and causing the roots to turn black and rot. During the rainy season or rainstorm, the orchid must avoid its harm, because of the long rain and humidity, black spots are most likely to occur on the new leaves, and the stamens often have "rotten clothes", which affects flowering and ornamentation.

However, if the potting soil is too dry, it is easy to dry up the pseudobulb or other tissues to lose water and affect the metabolism, which will also lead to weak tissues and poor plant growth. In autumn, the potting soil should be wet, so as to facilitate the removal of leaves and flowers in the coming year. Therefore, orchid growers should know the trick of "not getting wet in winter and not dry in autumn".

The above illustrates the different water requirements of orchids at different times, so the amount of watering should be strictly controlled according to the requirements. At the same time, improper fertilization of orchids is also easy to cause root rot, such as too much fertilizer, too concentrated or liquid fertilizer into the leaf sheath, will have an adverse effect on orchid flowers. When fertilizing, the amount of fertilizer should also be increased or decreased according to the amount of watering, so that it can grow in harmony.

The first is to change the pot as soon as possible. It is found that the orchid rotten roots, it is necessary to change the soil on the pot planting material, the planting material should pay attention to the quality and water absorption performance, to fire soil or dry soil, charcoal and other planting materials as well, but also in the root reed part of the appropriate cover of some coarse sand, the effect is better.

The second is to control sunshine. For a period of time after changing the pot, it should not be exposed to the scorching sun, and it should be placed in a place with shade and air circulation, but it should be noted that the wind should not be too strong to avoid being affected.

The third is to pay attention to the method of changing potted plants. In addition to ensuring that the potting soil is waterlogged, the planting material from the lower part of the reed head to the outside of the root should be dense, and the reed head should be planted appropriately deeper, which not only plays a protective role, but also prevents the reed head from shaking or floating off the soil surface. Rotten roots and shrunken and yellowing leaves should be cut off to reduce nutrient loss and store nutrients in the reed head to maintain root development.

Fourth, reasonable watering. In the cultivation management, the water should be strictly regulated, and the potting soil should be semi-wet and dry, neither white and dry in the potting soil, but also not obviously too wet. In case of rain, you should move to a sheltered place and try to control the moisture of the potting soil to ensure its normal rooting.

Orchid root rot is mainly caused by too much watering of the orchid root or the planting material is not breathable! You can put the flower arrangement pot, cut off the rotten roots, and use some chlorothalonil in the upper pot! Change the hard planting material.

Turn the orchid out of the pot, cut off the rotten roots, raise it with river sand alone, and raise the roots in the pot!

Put the pot dry, see if the bottom of the pot is blocked, watering should be watered thoroughly, once a week for large pots, and once every three days for small pots.

1. First use scissors to dispose of the rotten roots of the orchid, leaving a good rhizome.

2. Mix soil: take sand, humus and bark and mix them together.

3. Prepare a piece of moss, the moss can absorb water well, and it has a good effect on preventing orchids from rotting roots again.

4. After that, spread the moss to the bottom of the pot and put the orchid in the pot. Pay attention to the size of the pot and not hold down the roots of the orchid.

5. After that, put the orchid in a cool place and water it.

6. The orchid will come back to life in a few days.