How can I find rotten roots in bonsai in advance?

If the leaves become dark and green and lusterless, or there is wilting, a large number of fallen leaves may occur.

Carefully observe every day to see if the roots are too wet, pinch them, and whether they will be soft to judge whether the roots are rotten.

If you find that the bonsai at home does not look so green, and even some bonsai have rotten roots, so if this happens, it means that the bonsai has rotten roots.

That is, the soil must be the kind of soil with strong air permeability and shrinkage, and the soil should be loosened frequently, and the amount of watering should be controlled.

Observe the bonsai every day, and carefully observe whether there are traces of rot in the roots of the plant, so as to avoid the occurrence of rotten roots in bonsai.

Causes of rotten roots in potted flowers.

1.Soil is too sticky: Most of the flowers prefer loose and well-drained soils, and when the soil is too clayey and heavy, the roots are prone to black rot due to poor drainage and poor air permeability. Loose and well-drained soil should be chosen.

2.Poor drainage: If the drainage hole at the bottom of the pot is filled too tightly, the potting soil will not drain smoothly after watering, and it is easy to cause the potting soil to be too wet for a long time and cause root rot. Therefore, the holes at the bottom of the pot should be filled, and the flowers with high drainage requirements should be filled with more drainage layers at the bottom of the pot.

3.Excessive watering or rain waterlogging: Long-term wetting of potting soil or water accumulation after heavy rain will affect root respiration and cause potted flowers to suffocate and rot roots, especially flowers that are not tolerant to moisture.

Watering must follow the principle of "not dry, not watering, watering is watered thoroughly", to maintain the good state of alternating dry and wet potting soil. After heavy rain and heavy rain, stagnant water should be poured out in time. Crab claw orchid, Ruixiang, etc. are prone to root rot when exposed to rain in midsummer, and should be placed in a place where it cannot be rained.

4.Fertilization is too concentrated or raw fertilization. Excessive fertilization will cause the cell fluid in the flower to extravasate, cause damage to the root system, and even lead to rapid root rot and death.

When applying raw fertilizer, a lot of heat is generated when the fertilizer decomposes, burning the root system. Therefore, fertilization should follow the principle of "thin fertilizer and frequent application", and apply fertilizer that is fully rotted.

5.Pest and disease infestation. For example, iris, cyclamen, calla lily, hyacinth, lily, dahlia and other flowers in the occurrence of bacterial soft rot, its rhizomes, bulbs, tubers and other organs at the beginning of the water ulcer, then turn brown, then become sticky and soft rot.

Attention should be paid to the use of disease-free materials for propagation, and the disinfection of culture soil should be done. After the onset of the disease, dixone 600 can be used800 times the liquid to irrigate the rhizosphere soil.

When the roots of flowers rot, they quickly cause the death of the aboveground parts. If it is a non-infective rotten root, the plant should be removed from the pot as soon as possible, cut off the rotten roots, and carefully maintained in a semi-shaded place after repotting. If it is detected early and dealt with in a timely manner, it can be saved; However, if the water loss is severe for a long time, it cannot be treated.

Too much watering will cause root rot, if too little watering, it will cause poor growth and root wilting, if the light is not enough, it will also cause poor growth, and too low temperature will also cause plants to shrink and die. It can also be caused by root rot. You can change the soil when you change the pot, water it in a ventilated and sunny place, and spray carbendazim or zeb zinc to irrigate the roots.

It may be that the roots are rotten due to too much watering.

1. Too much watering.

2. The plant is sick, (or has worms).

3. What liquid is not suitable for plant growth? . .

The salvage measures are as follows:

1. Dig out the root system of the bonsai and remove the root system that has died.

2. Change some fertile and soft sandy soil for bonsai, the air permeability and water permeability of the soil should be good, and do not use clay.

3. Place the bonsai in an environment where the light is better than the light, and try to avoid direct exposure to the sun.

4. Water more, but you must not have more plant roots, which are most afraid of waterlogging, and keep the soil moist.

Don't water too often.

Root bonsai. Shallow planting and picking roots. Cultivated in shallow pots, semi-finished stumps with developed taproots and easy to shape are selected. The root of the root is exposed to the potting soil in a unique way. If the lateral roots of the root of the tree should not be directly exposed, the roots can be picked out of the pot surface by picking the roots, and the roots can be reasonably cultivated in the form of tree stumps.

Tigan Lugen. Grow with deep pots. Through measures such as repotting, the roots are lifted higher than the potting soil year by year to achieve the purpose of ornamentation. You can also expose part of the roots to the pot surface and then cultivate the soil, and after growing for a period of time, then remove the soil to promote early growth.

Bead cuttings. For the stump that is not suitable for directly exposing the roots, such as the branches growing at the base of the stump, after semi-lignification, the branches are peeled off and pressed into the potting soil, and the branches are cut off in time after rooting to achieve the purpose of exposing the roots.

1. Watering should be moderate, not too frequent. We should grasp the principle of seeing dry and wet. This should be paid more attention during the dormant period of potting and the early stage of potting and repotting.

2. All kinds of organic matter mixed in the soil, such as humus, circle fertilizer, sawdust, farm fertilizer, manure, organic waste, etc., must be enriched and fermented for a long time before they can be used.

3. When topdressing potted plants, the dosage and concentration must not be too large, and the principle of "a small amount and many times" should be followed as much as possible.

4. It is necessary to ensure that the potting soil is excellent for water seepage. When potted flowers are watered, the water accumulates in the appearance of the potting soil, which is not easy to infiltrate for a long time, and there are several reasons for such an environment:

1) The newly placed potting soil is cohesive soil, which does not contain organic matter or fine sand, so it is difficult to seep water.

2) The tiles on the bottom hole of the flower pot block the hole, or the gravel layer of the pot bottom pad is too thin, or the gravel drain layer is not padd, or even the water seepage is not smooth.

3) The potted flowers have not been repotted for many years, and the roots are full of clumps in the pot, and even the water is difficult to seep. Therefore, organic humus, river sand, slag, soot and other identities should be added moderately to ensure that the substrate has excellent ventilation and water permeability. Or change the pot from the beginning and cut off too many fibrous roots, otherwise it will cause the leaves to yellow and fall off over time, and the roots will rot and die out due to water accumulation.

1. Watering should be moderate, not too frequent, which is a common mistake made by many beginners. The principle of seeing dry and wet should be mastered. This should be paid special attention during the dormant period of potted plants and the early stage of potting and repotting.

2. All kinds of organic matter mixed in the culture soil, such as humus, circle fertilizer, sawdust, farm fertilizer, manure, organic waste, etc., must be fully fermented and decomposed for a long time before they can be used.

3. When topdressing potted plants, the dosage and concentration must not be too large, and the principle of "a small amount and many times" should be followed as much as possible.

4. Ensure that the potting soil has good water seepage. When potted flowers are watered, water accumulates on the surface of the potting soil, which is not easy to infiltrate for a long time, and there are several reasons for this:

1) The new potting soil is cohesive and does not contain organic matter or fine sand, so it is difficult to seep water.

2) The tiles on the bottom hole of the flower pot are blocked by the hole, or the gravel layer of the pot bottom pad is too thin, or the gravel drain layer is not padd, so that the water seepage is not smooth.

Pelvic floor cushion shell

Peanut shells - To raise flowers, you can pad a little peanut shell at the bottom of the pot. The peanut shell is loose and breathable, and placing it in a pot can increase the soil air permeability, and with the decomposition of the peanut shell, it can also become nutrients, which can be absorbed and utilized by flowers and plants, which is conducive to the growth of flowers and plants.

After the peanut shell is dried, it can be placed directly at the bottom of the pot for use as a drainage layer. You can also put it in a plastic bag, add water to moisten it, tie the bag, put it in a place with the sun, and wait for the peanut shell to turn black, it will rot well, and mix it into the pot, which can increase the air permeability of the soil and make the roots of flowers and plants grow better.

Nut shells - The leftover nut shells that are usually eaten can also be used to pad the bottom of the pot. For example, pistachio shells, pine nut shells, longan shells, walnut shells, as long as they are salt-free nut shells, they can be used, most of the nut shells are hard, and placing them at the bottom of the pot can increase the air permeability in the pot and reduce the appearance of rotten roots. As the nut shell slowly decays and decomposes, it can also provide nutrients for the growth of flowers and plants.

Eggshell - Eggs are the food that every family will eat, the remaining eggshells are rich in nutrients, containing a lot of calcium fertilizer and phosphorus fertilizer, which has a good effect on the growth of flowers, calcium fertilizer can increase the cold resistance of plants, let plants grow tall, and phosphate fertilizer can promote plant flowering and growth.

Egg shells should not be thrown directly into the pot, after collection, they should be exposed to the sun for a few days, and then sprinkled on the side of the pot. You can also put it in a pan and fry it until golden brown, then crush it and sprinkle it on the side of the basin. The eggshell is loose and breathable, and it can also improve the soil structure, making the soil more loose, which is conducive to the growth of plants.

Shrimp and crab shells - shrimp shells and crab shells are rich in nutrients, and the effect of raising flowers is very good, in which protein, phosphorus and calcium are all elements required for the growth of flowers, which are absorbed and utilized by flowers and plants after decomposition, and flowers and plants grow vigorously. Moreover, shrimp and crab shells mixed with the soil can make the soil more loose and not easy to rot roots.

You can put some broken tiles, gravel, or river sand on the bottom of the pot. You can also mix a little perlite in the soil.

If you find rotten roots, you should deal with them in time, cut off the rotten roots, and then put them in a cool and ventilated place, just like treating wounds, and dry the wounds, this process is generally 4 to 6 days, and then put them in pots, and then water them after a week. How to avoid root rot: Rewater the surface of the plant when it is dry, and don't water too often.

It is also necessary to ensure that the potting soil has good water seepage and will not accumulate water. In addition, to fertilize the plants, do not use raw fertilizer, but use well-rotted fertilizer.

Don't overwater, water with better water, and choose a breathable soil.

Cut off the part of the rotten roots, preferably cleanly. It is then raised in water and planted in the soil after new roots have grown.

Such plants are not easy to raise, I bought two pots of pothos in 10 months, and in the winter the roots rotted and died.