What is the reason for the delay in taking root after the vegetable is planted?

After the vegetable is planted, the focus is to promote the growth of the root system, once the root system is poorly grown, it is very unfavorable to the cultivation of strong trees. So, what are the reasons why it is difficult for the root system to take root after vegetable colonization?

1. Changes in the root environment.

At present, most of them are factory substrate seedlings, which are characterized by good aeration and water permeability, which is very suitable for the expansion of the root system, and the factory seedlings have relatively strict control over the root environment, and the root growth environment is very clean.

The greenhouse soil environment is very complex, with many harmful microorganisms, inconsistent texture and substrate, concentrated mineral nutrients, etc., and the vegetable roots after planting should have a gradual adaptation process from the substrate to the soil.

Once the soil environment becomes very harsh, and the roots in the substrate are difficult to adapt to the soil, then it is difficult for the vegetable roots to take root.

With the extension of greenhouse planting time, the soil environment is getting worse and worse, and the root growth of planted vegetables will often occur due to the huge drop from the substrate to the soil.

Therefore, ensuring that the soil environment is in a healthy and stable state is the basis for the smooth rooting of vegetables after planting.

2. The fertilizer is too concentrated.

When the amount of manure is large, if the rotary tiller is used to plough the ground, in the case of shallow ploughing depth (no more than 20 cm), a large amount of fertilizer is concentrated in the soil layer of 0-20 cm on the surface, then this will have a very big impact on the vegetable root system.

Due to the concentration of fertilizer, the concentration of soil solution will appear after watering the seedlings.

In the case of too high, the root system undergoes plasmo-wall separation in a high concentration of soil solution.

As a result, there is a lack of water, which eventually leads to the death of the root system.

Therefore, it is recommended that vegetable farmers should plough more than 30 cm after using base fertilizer, which can not only ensure the uniform distribution of fertilizer in the soil, but also break the bottom layer of the plough and reduce the harm of excessive concentration of fertilizer.

3. The surface temperature is too high.

The soil temperature suitable for root growth is between 12 and 20, and the surface temperature can usually reach about 25 in summer under strong direct sunlight. Moreover, high soil temperature accelerates water evaporation, which is not conducive to root growth.

Therefore, proper shading should be carried out after vegetable planting, not only to reduce the amount of leaf transpiration, but also to keep the soil temperature in the conditions suitable for root growth.

4. Soil quality problems.

Although the sticky greenhouse soil has good water and fertilizer retention, it is not conducive to root growth due to the lack of air in the soil.

In addition, the poor growth of the root system of the seedling itself is also the reason why it is difficult to take root after planting, after the seedlings should carefully observe the growth of the root system of the seedlings, the strong root system is manifested as white and developed root hairs, and it is best not to use the seedlings with few root hairs and yellowing and browning.

Environmental changes Before the transplanting of vegetables, it is an environment for seedlings, and this environment is an ideal environment for the growth of vegetables. After transplanting, the vegetable seedlings suddenly change to a growing environment, and a slow adaptation process is required. When the environment is harsh, it becomes difficult for vegetable seedlings to root down.

Vegetable seedlings do not grow after planting, and the seedlings in the hole tray grow neatly, but after planting, there is a situation of large and small seedlings, and the growth is very uneven.

There are many vegetables around Kunming that are grown in plastic greenhouses, and the advantage of this planting method is that vegetables can be grown all year round. These greenhouse lands have been used for more than 10 years, rarely have been used for 3 or 4 years, and a large number of chemical fertilizers and pesticides are used all year round, and the soil may have certain problems over time. For example, soil fertility declines, organic matter is insufficient, microorganisms are insufficient, and trace elements are insufficient.

If these problems are not solved, we will not be able to grow high-yield and high-quality vegetables, and in serious cases, we will not be able to grow vegetables, and one may die. The soil in the plastic greenhouse vegetables is used all year round, for more than 10 years, at least a few years, the organic matter, microorganisms, trace elements, etc. previously contained in the soil have disappeared, and continuous fertilizer supplementation is needed. Extensive use of chemical fertilizers, unscientific and reasonable fertilization, poor plumbing, etc. can cause soil problems.

Continuing to grow the same crops, commonly known as extended cropping, relies on excessive chemical fertilizers, resulting in a reduction in soil organic matter, resulting in very bad good results. In addition, the long-term use of groundwater for irrigation may accumulate large amounts of toxic substances, resulting in a verdict. After the soil is solidified, the roots and microorganisms present in the soil respirate because there is no space to store oxygen in it.

Bad, resulting in a decrease in the conservative fertilizer capacity of the soil, the rapid loss of water and fertilizer applied in the soil, the inability of crop roots to absorb enough nutrients, the inability of crops to grow normally, the weakness of seedlings, slow growth, and malnutrition.

and other phenomena appear.

Crop rotation allows for a balanced use of nutrients in the soil.

Combine land and fertile land. Eliminate and reduce the loss of pests and diseases unique to specific crops. The use of stericins secreted by the roots of previous crops can inhibit the occurrence of diseases of marquis crops such as sugar beet, carrots, onions, garlic, etc., and can inhibit the occurrence of potato late blight, and the exudates of wheat roots can inhibit the growth of thatched roofs.

The front of the spring cucumber.

Mainly autumn vegetables and spring vegetables.

Yuedong cuisine and marquis have a variety of autumn vegetables, summer and autumn cucumber front hu is suitable for all kinds of spring and summer vegetables, and back hu is suitable for Yuedong cuisine or spring vegetables. Cucumbers and tomatoes inhibit each other and cannot be mated with crop rotation.

3 5 years of crop rotation, and eggplant and crops are not ripe, the previous crop has a variety of leafy vegetables and root vegetables, the latter crop can also be leafy vegetables and root vegetables, between short-term crops or vegetables, there are **, such as soybeans, cabbage, bulb fennel, onions, garlic, etc. and intercropping before the beard is overwintering leafy vegetables, can be and early ripening cabbage, early cabbage, spring radish, carrots, cherry wood.

Vegetables with short growth organs can be planted together, and autumn vegetables such as cabbage can be planted after beard. It should not be combined with eggplant crops, and should not be intercropped with short-stem crops such as leafy vegetables, root vegetables, and peanuts. Avoid continuous cropping.

Yin Jue 3 5 years. Don't find fault with other cucumbers or old vegetable gardens. Cucumbers are best used as leafy vegetables, and then as wild vegetables.

It can significantly increase production.

The quality of the seedlings is not good, the growth is weak and not robust, and the live trees are relatively slow after transplanting.

Therefore, when planting vegetables, it is recommended that it is best not to use weak seedlings, and select seedlings with vigorous growth, lush branches and leaves, and developed root system.

It's probably because it lacks nutrients and it doesn't have enough water, so it doesn't grow.

Because I didn't water the vegetables after planting, the seeds of the vegetables grew very slowly without water, and they were always so high.

Vegetable seeds are of poor quality and are difficult to germinate or have a long germination period. Or it is due to soil compaction, which makes it difficult for vegetable roots to grow and cannot absorb enough nutrients and water.

The reasons that affect the growth of vegetables are, first of all, poor soil and insufficient light. Secondly, there is no regular loosening of the soil, so that the plants can get aerobic respiration in time, and thirdly, overwatering, which leads to root rot and inhibits plant growth.

Vegetables do not grow, it may be too much manure, a little burning seedlings, or overplanting, serious soil compaction, excessive watering and so on.

The soil of the small vegetable field is the soil used in the nursery, the cabbage seeds are sprinkled on it, the small leaves are close to the ground to grow, grow very slowly, do not grow tall, pepper seedlings have not grown two centimeters for a few months, the leaves are rolled, what is the reason?