Can you cut off the yellowing of peony leaves, and what to do if the freshly planted peony leaves ar

It should be cut off, affecting the appreciation and affecting the growth, and may even lead to infectious rot disease, so it should be cut off in time. Peony belongs to the fleshy root system, and watering must be dry and wet.

The main reasons for the dry and yellowing of peony leaves in summer are:

1. Alkaline soil. Saline-alkali soil reduces the uptake of water and nutrients by the roots of peony, resulting in nutrient disorders. The high temperature and sunburn in summer aggravate the imbalance between the supply and demand of water and nutrients for plants, and the leaves are more prone to dry tips and dry edges, and in severe cases, the whole leaves wilt and dry out.

2 The soil is too sandy. If the soil is too sandy, water and fertilizer are easy to be lost, the soil is easy to dry, and the peony grows poorly. In the hot summer, due to the rapid increase in the surface temperature of the desertified soil, the transpiration increases, and the leaves of peony lose a lot of water, resulting in the drying of leaf tips and leaf edges.

3 The soil is barren. In the soil with poor fertility, the plant grows weakly, the leaf quality is thin and the color is light, the resistance is poor, and the leaf dry tip and dry edge phenomenon are also prone to occur under the scorching sun.

4. Soil compaction. Soil compaction affects the circulation and conversion of water, nutrients and air, and the roots cannot absorb water and nutrients from the depths of the soil in time due to excessive evaporation of water under strong light and high temperature, and the leaf tips and leaf edges are at the top and edge of the leaves, which are the most seriously harmed by sunburn.

5. Heavy planting. The soil fertility of heavy cropping is reduced, the nutrients and trace elements that can be absorbed and utilized are poor, the plant resistance is reduced, the diseases and pests are aggravated, and the leaf tips and leaf edges are also prone to dryness.

6 Late planting. The plant is planted too late, due to the drop in temperature, the roots can not give birth to fibrous roots before freezing, the peony sprouts and grows rapidly in the spring of the second year, and the roots can not absorb sufficient water and nutrients, in the hot and dry summer, it is easy to appear that the peony branches and leaves wilt, causing the leaves to shrink and dry edges.

Different peony varieties have different abilities to resist high temperatures and sunburn. In the same plot, some peony plants grow stout and have thick leaves, although they are exposed to strong sunlight, the leaves rarely appear dry and tipped, and the leaves still remain dark green in late autumn; However, most of the leaves of some varieties are thinner, lighter in color, and slightly less resistant to summer sunburn, and the leaves will have more dry tips and dry edges, resulting in a large number of leaf spot diseases, resulting in premature mildew of leaves.

Enhance the growth of peony, reduce the damage caused by sunburn, and reduce the occurrence of dry tips and dry edges of leaves

1 saline-alkali land and flying sand land should not be planted peony, if planted, saline-alkali land should be planted with soil, flying sand land should be added an appropriate amount of clay, heavy stubble land should be rotated, hard soil layer should be deeply turned over, improve soil permeability.

2. Increase the application of organic fertilizer or compound fertilizer to cultivate soil fertility and promote the healthy growth of plants.

3. Timely planting, timely watering in times of drought, and timely watering of soil with poor water retention. Before the hot summer, scaffolding can also be set up for shade.

4 In May, 50 carbendazim 600 times or 70 methyl tobuzine 800 times can be sprayed, and potassium dihydrogen phosphate can be added.

Yellowing of peony leaves, excessive watering, improper fertilization, and rotten roots can all lead to.

There are many reasons why the leaves of peony flowers turn yellow, and if it is caused by overwatering, it needs to be watered less. If it is caused by improper fertilization, it is necessary to apply thin fertilizer frequently and use fertilizer reasonably. If it is caused by rotten roots, it is necessary to remove pots and prune the rotten roots.

If it is caused by pests and diseases, it needs to be controlled with medication, and in severe cases, it is necessary to remove pots and change soil.

If you water too often and too much, there will be yellowing of young leaves, and there will be no obvious change in old leaves. If there is too little watering, the plant will lack water, and the old leaves will begin to turn yellow from the bottom up. If there is a long period of water shortage, the leaves of the whole plant will be dark yellow, and even die.

If the fertilizer is too much or too frequent, the leaf surface grows well, the leaf quality is thick and shiny, but the leaves will be uneven for a long time, and root rot may occur in severe cases; When the peony nutrients are insufficient, or if it is not fertilized for a long time, it will be manifested as yellowing of young leaves and young stems, which will gradually cause the whole plant to turn yellow or even die.

Peony flowers are fleshy roots, the potting soil is uncomfortable, and if the pot is not changed in time, bacterial infection will cause rotten roots. It is difficult to detect abnormalities in the above-ground parts at the beginning, but the absorption capacity of the roots gradually decreases, and the lower leaves slowly turn yellow and gradually spread to the whole plant.

In addition to being cultivated in the open field, peonies can also be used for potted ornamentation. The best planting season is from September to October. Potted peonies should choose varieties such as Luoyang Red, Hu Hong, and Zhao Fen with strong adaptability, early flowering, and good flower type.

Plants should be selected as a rootstock for 3-4 years of small peony grafted or 3-5 branch seedlings.

When the peony is potted, the bottom of the pot can be paved with coarse sand or small stones 3-5 cm thick to facilitate drainage. The potting soil should be mixed with yellow sand soil and cake fertilizer, or with fully decomposed manure, garden soil, and coarse sand at 1:1:

1 ratio of mixed culture soil. The soil should be filled so that the root system is stretched and cannot be curled; After covering the soil, it should be compacted by hand so that the root system is in close contact with the soil, so that it is easy to survive. After potting, water once and put the seedlings in the semi-shade.

After being transferred to normal management, it can be placed in a sunny place to ensure that it has sufficient sunlight exposure. During the growth period, the soil should be loosened frequently, and compound fertilizer should be applied every half a month or so. Newly potted peonies can not be fertilized, especially avoid thick fertilizer, otherwise the fleshy roots will be moldy and rotten to death.

After half a year, you can gradually apply some thin fertilizer, such as rotten chicken manure or bean water, etc., and the ratio of fertilizer to water is 20%-30%. Newly potted peonies may not produce good flowers in the first year, but after 1-2 years of cultivation, they can bloom year after year. Peony blooms in mid to late April a year, and liquid fertilizer can be applied 1-2 times before flowering; Half a month after flowering, apply liquid fertilizer 1-2 times; Futian can use sesame paste residue (about 40-50 grams per pot) to apply dry fertilizer once to facilitate flower bud differentiation.

Peony is a fleshy root, slightly drought tolerant, most afraid of stagnant water, so whether the watering is proper is a key issue in the success or failure of potted peonies. Generally, the peony that comes out of the room in early spring should be fertilized once, and then watered thoroughly, and the soil should be loosened after the water is slightly dried. In the future, watering should be carried out in a timely and appropriate amount according to the weather and potting soil conditions, and the potting soil should be kept moist frequently, which is conducive to the growth and flowering of peonies.

Reasonable watering should be dry and wet, not suitable for large watering, to prevent water accumulation in the pot, so as not to rot roots and leaves.

When the peony blooms, it can be covered by a shed or temporarily placed indoors, avoiding direct sunlight, which can prolong the flowering period, and the top bud of the main branch is a leaf bud, which should be removed, so as not to grow and affect flowering. In order to make the peony bloom brightly, the dihydrogen phosphate solution available during the flowering period is sprayed 2-3 times. After the peony flowers are gone, it is necessary to carry out a plastic pruning, cut off the residual flowers and flower stalks in time, do not let the seeds set, and retain the 1-2 outer buds of the stem, so that the plant can grow vigorously and ensure that the next year blooms.

Although peonies are more cold-tolerant, in cold areas such as North China, they should be moved indoors before and after the beginning of winter, placed in a sunny place in the room, and the room temperature should be kept at about 0 degrees. It is not advisable to leave the room too early in the following year, and you must wait until before and after Qingming. In areas that are not too cold, you can choose to bury the pot in the soil in a hidden wind place, so that the pot surface is level with the ground to maintain the humidity and temperature of the potting soil, and also ensure the safe wintering of peonies.

After the peony flowers appear in the spring of the second year, the peony will be dug out of the ground in a pot for normal management.

There are many reasons for the yellowing of peony leaves: if it is caused by heavy watering or too often, it is necessary to reduce the amount of watering; If it is caused by unreasonable fertilization, it is necessary to fertilize in an appropriate amount and not too much or too little fertilization; If it is caused by unsuitable soil, then replace the suitable soil in time; If it is caused by pests, then catch and spray the agent in time.

1. Appropriate amount of watering:

Reason: If the watering is too frequent or too long, it will cause the leaves to turn yellow, and if the amount of watering is not well controlled, too much or too little will also cause the leaves to turn yellow.

Solution: If there is a lack of water, increase the amount of watering, if the amount of watering is large, loosen the soil and reduce the amount of watering, usually water regularly, and control the amount of watering.

2. Appropriate fertilization:

Causes: If the fertilization concentration is too high or due to insufficient fertilization and lack of nutrients, the leaves will become yellow, and even wilt and die.

Solution: Do not use too high concentration when fertilizing, control the amount of fertilizer not too much, and do not use it too often, if the amount of fertilizer is large, you can increase the amount of watering to consume fertilizer (it is recommended to use Trim water-soluble fertilizer).

3. Replace the soil

Reason: If peony flowers grow in alkaline soil, the leaves will turn yellow after a period of growth, and if you sit idly by, it will not only aggravate the yellowing phenomenon, but also lead to death.

Solution: It can be replaced with suitable soil, and replaced with acidic soil, which can not only improve the yellow leaf phenomenon but also facilitate its growth.

4. Eliminate pests

Reason: Peony flowers are generally attacked by pests, which can cause the leaves to turn yellow or scorch.

Solution: Pests should be caught in time after they are found, and pesticides can also be sprayed to eliminate pests.

The leaves of the peony are yellow, so it is necessary to find out the cause before adjusting. Leaf yellow may be caused by soil discomfort that has not been repotted for a long time, so it is necessary to change the pot in time to provide soil suitable for growth, and deal with rotten roots when changing pots. It may also be caused by unreasonable watering, and the soil will be watered once it is dry, but pay attention to the amount of water.

It may also be caused by too little fertilizer and too much, and the amount of fertilizer should be adjusted. Or it may be caused by infection with pests and diseases, remove the yellowing leaves, and then use pesticides.

First, the soil is unsuitable.

Reason: If the potted peony is not repotted for a long time, it may affect the normal growth of the plant and cause the leaves to gradually turn yellow.

Solution: After the soil is not suitable for growth, it is necessary to change the potting soil for the peony in time, provide the soil that meets the growth, and look at the roots when changing the pot, and deal with it in time if there are rotten roots.

2. Improper watering.

Reason: The leaves of peony flowers turn yellow, it is very likely to be related to watering, if the watering is too little, the plant has been in a state of lack of water, which will cause the old leaves to start yellowing first. However, if you water too often, it will also cause the leaves to turn yellow.

Solution: Water according to the condition of the potting soil, and water it thoroughly after the soil is dry, but pay attention to the amount of water, and there must be no stagnant water.

3. Improper fertilization.

Reason: Fertilization is also a very important factor, if there is too little fertilizer, too much will cause yellow leaves to varying degrees.

Solution: If there is a lack of fertilizer, you should change the pot and soil regularly, and apply the water-soluble fertilizer of fertile leaves in time. If you apply too much fertilizer, you can dilute it with water.

4. Infection with pests and diseases.

Reason: If the peony is not maintained, it may be infected with pests and diseases, and it will also cause the leaves to turn yellow.

Solution: After discovering such symptoms, it is necessary to deal with them in time, remove the yellowed leaves, and then use the drug.

1. Pay attention to reasonable watering, pay attention to drainage, and do not water too much or too little.

2. Put the peony flower in a sunny place, the peony flower is a plant that likes the sun, and it cannot be placed in a shady place, and if there is a lack of light, the peony flower will have yellow leaves.

3. To timely top dressing to ensure the nutrients required by plants, peony flowers need more nutrients during flowering, so they need to be topdressed in time, ** the nutrients required for flowering, otherwise the flowers will bloom small, and the leaves will also turn yellow.

4. It is necessary to ensure a suitable temperature to avoid freezing, which will also cause the peony flowers and leaves to turn yellow.

5. Prune and remove excess branches and leaves in time.

Reason: Improper watering, too long-term drought or long-term water accumulation will cause the peony to appear yellowing of leaves, and then lead to death.

Solution: If it is caused by lack of water, it should be watered in time; If the soil is waterlogged, drain the water and control the amount of watering.

Reason: If we apply too much fertilizer, too much fertilizer at one time, or the season is not suitable, and the fertilizer is applied to the soil without rotting, it may also cause the leaves of the peony to turn yellow.

Solution: If the leaves are yellowing due to these reasons, you can use methods such as watering or changing the soil to improve the yellowing of the leaves.

The causes and solutions of yellowing of peony leaves include: unsuitable soil, improper fertilization, improper light, improper watering, and improper planting time, and the specific analysis is as follows:

1. The soil is not suitable

If the soil is compacted or alkaline, the leaves of the peony will dry up and fall off in the summer. Because of the hot and hot summer weather, the roots need to absorb nutrients from the soil. If the soil is not suitable and the roots do not absorb enough nutrients, the leaves of the peony will naturally have problems.

Solution: Cultivate peony potted plants, do not choose saline-alkali soil, and do not choose sandy soil. Choose ordinary garden soil, add some coarse sand to it, and add some organic fertilizer.

If you have already chosen alkaline potting soil, you can apply some acidic fertilizer, which can play a neutralizing role, or directly replace it with new potting soil.

2. Improper fertilization

Fertilizing peonies is more particular, not liquid fertilizer, not raw fertilizer, not thick fertilizer. If the peony is not fertilized properly, the peony leaves will also appear yellow and dry.

Solution: After fertilizing the peony, if the peony has dried up and yellowed, it means that fertilizer damage has occurred. Peony should be irrigated with a large amount of water, which can dilute the salt in the soil.

3. Improper lighting

In summer, the weather is hot and the temperature is relatively high, and if the peony flower potted plant is exposed to direct sunlight, the leaves of the peony flower will also dry up and fall off.

Solution: Before the arrival of summer, it is necessary to do a good job of shading the peony flowers, so that the peony flowers will no longer be exposed to the sun, and the leaves will not dry out.

Fourth, the planting time is improper

Peony is a plant with many roots and whiskers, and it needs to absorb nutrients from the soil. If the peony flowers are planted too late, the soil is too hard or frost damage occurs, the roots will not grow well. In the second year, after the peony flowers germinate, the roots do not absorb enough nutrients.

In summer, when the weather is dry and hot, the leaves of the peony flowers will dry out.

Solution: It is best to plant peony flowers in autumn, when the weather is cool and the temperature is suitable, and the roots of peony flowers can grow better. In winter, it is necessary to take measures to keep warm, and after summer, the roots have grown very strong and can absorb enough nutrients.

5. Improper watering

Peony is more drought-tolerant, but then drought-tolerant plants also need to be watered, if we do not water the peony, then the peony will appear because of the lack of water and the leaves turn yellow and wither, although there is no need for frequent watering, but it is still necessary to maintain enough water**, peony is more afraid of waterlogging, if watering too much peony will rot roots, the roots will rot and the leaves will turn yellow and wilted.

Solution: When the peony pot soil is too dry, it should be watered in time to replenish water. However, if you water too much, you should strengthen ventilation, control watering, and see dry and wet watering in the future, which is expected to prevent water accumulation in the potting soil.