Why did the saplings sprout and wither again, and what medicine did the merchants use?

1. Root punching.

At this time, it is necessary to use soil punching equipment to punch holes in the root system of the seedlings to improve the air permeability of the root soil, promote the new roots to grow as soon as possible, absorb water and fertilizer normally, and maintain the growth of new shoots.

2. Cutting and sterilizing.

After punching, use a disinfection pruning knife to cut off the branches and leaves germinating at the top of the sapling to reduce the consumption of nutrients, and then apply a layer of carbendazim fungicide to the section, wait for the agent to dry and cover the plastic wrap to avoid bacterial invasion, and build a curtain for the sapling to shade to avoid sunburn on the section.

3. Water the rooting solution.

In order to improve the growth rate of seedlings, you can buy rooting powder from the market, dilute it with water and water it at the roots, and use anti-insect and antibacterial agents such as oxazyl and sodium disulfonate to avoid pests and diseases for the seedlings.

4. Shallow cultivation soil.

Planting seedlings should pay attention to the depth, planting is too shallow, the roots of the seedlings are not stable, easy to lodging, and planting too deep, will affect the growth of the root system, so in the process of planting seedlings, the method of shallow planting should be adopted, so that the root soil ball is 8 cm higher than the ground, and then watered the root water, so that the soil ball naturally sinks to the level with the surface, and then cultivates the soil to the root.

What kind of medicine does the merchant use? Don't people want it to grow well? Can you still use medicine to make it wither?

It must be that he has no roots underneath, and in the spring, its teeth come out, but because there are no roots underneath, it can't live, and it's better to die.

What happens when lychee seedlings are grafted and sprout and wither? 1. Why does lychee scion wilt and die after germination? What are the reasons?

After the lychee scion germinates, it is normally curled in the grafting film first, and then swelled and squeezed through the grafting film to grow upward. However, once the scion is curled in the grafting film for a long time and cannot squeeze the grafting film, then it is very likely to wilt and die. 1. The scion branches are too small

If the scion grafted lychee is relatively small, the buds that will emerge after it survives are also very weak. The key is that if the sprouts are too small, they should be in the back.

It wilts as soon as it sprouts, mainly due to excessive wetness of the potting soil in winter. Roses are light-loving, sun-loving, cold and drought tolerant, and generally do not need special protection in northern China. As long as it is not too dry, it can grow without watering.

Roses are in the process of growing. There are usually two cessation phases of growth (generally called summer hibernation in June and July; 11 The month of December is called hibernation), at this time no branches are formed, and the branches are not elongated. Therefore, in winter, it can be placed in a ventilated and sunny place to keep the potting soil dry or slightly damp.

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Summary. The reason why it germinates is to consume the nutrients in the plant, but the root system of the plant is damaged and cannot maintain the growth of the plant, so there will be wilting and withering after the budding. It is also possible that the light is too strong, and long-term exposure to strong light will cause the leaf buds to lose water, which can lead to such a situation.

Overwatering may cause saplings to sprout and wilt. During the growth of seedlings, the amount of watering should be strictly controlled to keep the soil moist. It can also be caused by the quiet application of raw or concentrated fertilizer.

At this time, it is necessary to water the roots with clean water to dilute the fertilizer. It may also be caused by insect gnawing. It is necessary to spray diluted cypermethrin on the leaves for treatment.

If there is no overwatering, that is.

The reason why it germinates is to consume the nutrients in the plant, but the root system of the plant is damaged and cannot maintain the growth of the extinct plant, so there will be wilting and withering after the budding. It is also possible that the light is too strong, and long-term exposure to strong light will cause the leaf buds to lose water, which can lead to such a situation.

Seedlings germinate and wilt may be caused by overwatering, and the amount of watering should be strictly controlled during the growth of seedlings to keep the soil moist. It can also be caused by the application of raw or thick fertilizer, in which case it is necessary to dilute the fertilizer by watering water on the roots. It can also be caused by insect infestation and needs to be sprayed with diluted cypermethrin on the leaves**.

The root system of the seedlings is more fragile during the germination period, and it is not suitable to grow in the waterlogged environment for a long time, otherwise it will cause the leaves to lose their luster, and in serious cases, it will lead to the death of the seedlings. Therefore, when maintaining seedlings, it is necessary to control the amount of watering so that the soil is in a slightly moist state.

The growth of seedlings will consume a lot of nutrients, when the seedlings have just germinated, they are in the weakened period of growth, and it is not appropriate to apply raw fertilizer or thick fertilizer at this time, otherwise it will burn the root system of the seedlings, resulting in the seedlings and sprouts in a wilted and dry state. During the growth of seedling shoots, the diluted organic fertilizer solution can be applied every half month to supplement nutrients.

After the sapling germinates, it is susceptible to the attack of borers, which will eat the phloem, xylem and cambium of the sapling, and then form insect paths, destroying the tissues of the sapling, so that the entire seedling will die. Cypermethrin, cyst mixture and water can be diluted at a ratio of 1:10 and sprayed onto the trunk**.

When the seedling shoots just grow out, the root system is relatively fragile and not resistant to direct sunlight, so it is necessary to build a shade net above the seedlings to weaken the intensity of light, and the water will evaporate quickly after the leaf buds are exposed to strong light, resulting in the withering of the seedlings.

1. Why did the sapling sprout and withered again?

2. Why did the sapling sprout wither again?

3. The saplings sprout and then wither.

4. Why do saplings die after germination?

1.The reason why it germinates is to consume the dust in the plant, but the root system is damaged and cannot maintain the growth of the plant, so there will be wilting and withering after the germination.

2.It is also possible that the light orange is too strong, and long-term strong light exposure will cause the water loss of the leaf buds, so that this situation occurs.

It is likely that there are not enough nutrients. Saplings are also referred to as seedlings, a general term for various fruit tree saplings, trees, and shrub seedlings. Saplings :

A sapling with a root system and a seedling trunk. All saplings cultivated in the nursery, regardless of age, are called saplings before they are released from the nursery.

Seedlings:Saplings propagated with vertical seeds. All seedlings cultivated by artificial methods are called sowing seedlings, and the seedlings that are planted under the nature of the mother tree in the wild are called wild seedlings.

The root system of the sown seedlings is developed, and the seedlings grow neatly, robustly, and vigorously. The density of wild seedlings is uneven, the differentiation is serious, and the root system is underdeveloped.

1. Excessive watering: After the seedlings germinate, the root system is fragile and the absorption capacity is weak. 2. Improper fertilization:

Apply raw or thick fertilizer to the seedlings. Resulting in burns to the root system. 3. Insect impact:

After germination, saplings are eaten by borer pests. 4. Excessive light: When the light is strong, the awning is not built for the saplings in time.

1. Overwatering

The root system of the seedlings in the germination period is relatively fragile, and it is not advisable to be in a waterlogged environment for a long time, otherwise it will cause the leaves to be dark yellow and dull, and the whole seedling will wither and die in severe cases.

2. Improper fertilization:

The vigorous growth of the sapling is inseparable from the supply of nutrients, when the plant has just germinated, it is in a period of weak growth, at this time it is not suitable to apply fertilizer or thick fertilizer, or it will burn the root system of the sapling, resulting in the plant is in a wilted and dry state.

3. Insect impact:

After the seedlings germinate, they are susceptible to borer pests, which mainly eat the phloem, xylem and cambium of the plant, and then form insect paths, destroying the meristem of the sapling, thus causing the whole sapling to wilt or even die.

4. The light is too strong

Newly sprouted saplings are not tolerant of direct sunlight, and if the plants are not shaded in time, the water will be quickly lost after the leaf buds are exposed to strong light, causing the saplings to wither.