The roots of the large flowered orchid have reached the surface of the planting material, what shoul

The root system of the large-flowered orchid is very developed, and most of the commercial orchids in the general orchid garden are 4-year-old seedlings, in order not to affect the growth of the orchid seedlings in these 4 years, they will not prune the roots, but will only constantly change the pot.

In the orchid garden, we can see that the pots used for different years of orchid seedlings are different, and they are getting bigger and bigger every year. Every year, the orchid garden is poured out and then put in another large circle of pots, and then refilled with planting material.

What should I do if the flower roots are rotten? Try not to use porcelain pots when cultivating, use mud pots and purple sand pots, the mud pots have the best breathable and water-absorbing effect, remove the rotten roots from rotten roots, soak them in potassium permanganate for an hour and take them out to dry, replace them with new cultivation materials, and use the new cultivation materials after disinfection with thiophanate-methyl.

When it is sold out of the garden, it will be replaced with a larger flower pot, usually a porcelain pot with a height of more than 50 cm. This kind of pot is actually just bright on the outside, and it is not suitable for raising orchids.

The root system of Cymbidium grandiflora has a strong aerotropism, and only when the planting material is loose and breathable, the roots of the orchid will take root in the potting soil. In other words, Langen will find a place for better air permeability on his own, so that the tip of the root system can be reached in that direction. At the same time, Langen also has hydrotaxis and fertilization, both of which are the same as aerotaxis.

The porcelain flower pots are not breathable well, and the root system of these orchids that have not been repaired for 4 years is complicated, and the interior is already a mess. At this time, the new roots are not willing to go down into the pot, which is understandable, after all, the living environment is too poor. Therefore, they will look for another place that is more suitable for growth, and the pot surface is generally not too dry because it is watered first; The air is well permeable, so once the root is oriented, it will try to stretch upwards, thus protruding the tip of the root system out of the pot.

It must be repotted and pruned the root system, in fact, for so many years have not been pruned for so many years, there are many empty and rotten roots in the middle of the root group, which can be pruned vigorously. The root system of orchids grows quickly, and as long as the planting material is properly prepared, it will grow again in pots within half a year.

In the end, this kind of porcelain pot should not be used anymore, and it would be better to replace it with a plastic pot that is not very good-looking, and it is better to raise orchids than this.

Most likely, the pot is too small. Flower pots should be replaced in a timely manner. When painting pots, bring a little soil from the roots of the plant and place it in a new pot, which can shorten the seedling period of the plant.

You can prune the root system properly, and at the same time change to a large pot to avoid rotten roots.

You can change to a larger pot. This may be due to the fact that the pot is too small, leaving no room for the plant to grow.

Treatment of old plants of Cymbidium grandiflora The following are several ways to deal with old plants: 1Pruning method:

Prune old leaves and roots regularly to prevent them from decomposing and producing coarse harmful gases, and at the same time promote new growth. 2.Dividing method:

Divide the old plant into several smaller plants and replant them. This makes the plants healthier and at the same time expands the planting area. 3.

Repotting method: dig out the old plants, remove the old roots, change the soil and cultivate the book and replant. This provides new nutrients and makes the plant healthier.

4.Propagation method: Propagation is carried out by using the branches or leaves of old plants.

This allows you to stool the keys to make new plants while also retaining the genes of the old plants.

After the roots of Cymbidium grandiflora rot, the plant needs to be depotted immediately, and then the rotten root system of Cymbidium grandiflora should be cut off with sterilized scissors, and then the plant is put into the diluted potassium permanganate solution for disinfection, and finally the Cymbidium grandiflora can be replanted in the loose soil after replacement, and the fungicide is sprayed regularly to prevent and control pests and diseases.

1. Prune the root system

After the root rot of the Macroflora orchid, the plant needs to be taken out of the pot immediately, try not to harm the healthy root system of the Macrophylla grandiflora, and then use sterilized scissors to cut off the rotten root system of the Macrophylla grandiosum to avoid further deterioration of the situation, and then put the Macrophyllum into the diluted potassium permanganate solution to soak for a period of time to disinfect and sterilize.

2. Soil conditions

After the roots of Cymbidium grandiflora rot, it is necessary to prepare loose and fertile soil with good ventilation for the plants, and the soil made of water moss, vermiculite, humus and pine bark can be mixed as the cultivation medium, and the soil needs to be disinfected and sterilized, and it is also necessary to prepare purple sand pots or ceramic pots with more drainage holes for Cymbidium grandiflora.

3. Prevention and control of pests and diseases

If it is found that the root system of the plant is rotten due to the disease, it is necessary to immediately cut off the diseased root system of the plant, and spray the fungicide every other week to make the healthy growth of the large-flowered orchid.

4. Maintenance method

When maintaining the large-flowered orchid, it needs to be moved to a ventilated and breathable semi-shaded environment to avoid the plant being exposed to strong light, and after waiting for the large-flowered orchid to heal, it can be watered according to the dryness and wetness of the soil to avoid water accumulation in the soil, so as to make the large-flowered orchid rotten roots, and it is also necessary to spray potassium dihydrogen phosphate to make the large-flowered orchid more brilliant.

After the large-leaved orchid blooms or fails, it is necessary to prune off the residual flowers and long branches and leaves in time to reduce the consumption of nutrients. After the flower failure, it is necessary to supplement fertilizer in time to avoid affecting the normal growth and development of large-leaved orchids. After that, it is necessary to increase the number of watering times to avoid the lack of water in the large-leaved orchids.

In addition, the large-leaved orchid can also be depotted and re-potted.

After the large-leaved orchid blooms and fails, it is necessary to prune off the residual flowers after the bloom and failure, as well as the long branches and leaves and densely grown branches and leaves. If there are many flower branches, it is necessary to cut off the whole from the bottom to reduce the consumption of nutrients, and also improve the permeability and aesthetics of the large-leaved orchid as a whole.

The flowering process of the large-leaved orchid will consume a lot of nutrients and water, and after the flower failure, it is necessary to supplement fertilizer in time so as not to affect the normal growth and development of the large-leaved orchid. It can be applied every half a month with well-rotted liquid fertilizer or compound fertilizer rich in nitrogen, phosphorus and potassium elements. Be careful not to get the fertilizer on the leaves when applying fertilizer.

The large-leaved orchid enters summer after flowering. At this time, it is necessary to increase the number of watering, each watering needs to be watered thoroughly and sufficiently, to ensure that there is enough water during the growth period, if there is a lack of water, it will lead to the drought of the leaves of the large-leaved orchid, and will affect the normal growth and development of the large-leaved orchid.

After flowering, the large-leaved orchid can also be repotted. The large-leaved orchid can be dug out of the previous potting soil, and then the root system will be pruned off, and after the pruning is completed, it needs to be soaked in carbendazim solution for a period of time, and then it can be planted in the loose and fertile new soil for maintenance, so that the large-leaved orchid can grow vigorously in the next year.

1. Prune the residual flowers.

After the large-leaved orchid blooms and fails, its residual flowers should be pruned off in time, and dense branches and long branches should be cut off at the same time to reduce nutrient consumption, which is conducive to recovery. When pruning, you can cut it from under the flowers. After pruning, a well-ventilated environment is provided to promote wound recovery as soon as possible.

2. Timely top dressing.

The large-leaved orchid consumes a lot of nutrients during the flowering period, and it needs to be fertilized after its flowers fail to replenish the nutrients consumed. Fertilizer is generally selected from well-rotted liquid fertilizer or diluted nitrogen, phosphorus and potassium compound fertilizer, applied once every half a month, and topdressing three or four times in a row. When fertilizing, just pour the fertilizer directly on the surface of the soil.

If you do not top dressing at this time, the large-leaved orchid is prone to wilting and lodging, which will affect the growth and hinder the flowering next year.

3. Change the pot.

After the flowers of the large-leaved orchid bloom and fail, it is recommended to change the pot. Because the potting soil has been compacted after a long period of irrigation, the soil is relatively poor, and it is easy to have poor growth if it continues to be used. It is advisable to replace the soil with soft, breathable and fertile soil, which will promote more vigorous growth in the later stages.

It is usually repotted every year after flowering.

4. Watering appropriately.

After the flowering period of the large-leaved orchid, the temperature will slowly rise, and the water will evaporate quickly, so it is necessary to increase the amount of watering appropriately, and spray water frequently. It is best to water thoroughly every time, and strengthen ventilation to ensure air circulation, otherwise it is easy to be infected with pests and diseases in a hot and sultry environment.