What to do with rotten Chinese cabbage roots, and what medicine is used for rotten Chinese cabbage r

There are many reasons for the root rot of cabbage, we should pay attention to avoid water, fertilization, humidity, temperature and other factors in the management process when planting cabbage, and also do a good job in the prevention and control of root rot and soft rot.

1. Soft rot.

The diseased trees are removed first, and then the drug is chlorobromide, isocyanuric acid, or octamine acetate, which is administered continuously for five to seven days, depending on the disease.

2. Root rot.

If one or several plants are found to be infected with root rot in the field, the diseased plants should be uprooted and burned in time, and the lime should be sprinkled around the diseased plants for disinfection, and then sprayed once in the field to avoid large-scale infection. It is best to choose a high-efficiency agent with systemic properties, such as leaf Qingshuang, thioxene copper, thiasen copper, etc.

In the early stage of Chinese cabbage root rot, 50% carbendazim powder 600 times, or 50% thiophanate-methyl powder 500 times, or 70% methyl tobuzin powder 500 times can be sprayed or irrigated, sprayed once every 7-10 days, 3-4 times in a row.

3. The temperature is uncomfortable.

Because of the unsuitable temperature caused by cabbage root rot, we can only take prevention, first according to the local climate characteristics to choose the right cabbage varieties for the growth period, and on this basis, grasp the sowing time, try to shorten or avoid the growth time of cabbage in the conditions of higher than 30 degrees Celsius or lower than 10 degrees Celsius.

To prevent high-temperature root rot, you can take the method of spreading wheat straw on the cabbage for shading, and wait until the temperature drops to take back the straw or directly pick it up between the rows, which can effectively reduce the occurrence of diseases.

4. Excessive humidity.

Due to excessive humidity caused by cabbage root rot, first of all, when selecting the site of the cabbage field, it is necessary to choose a plot with high and dry terrain, convenient drainage and irrigation, and good ventilation; Secondly, it is necessary to cultivate high furrows or high ridges, and make the cultivation row and slope direction consistent with the slope direction when preparing the land. Third, when irrigating, pay attention to the frequent watering of small water to avoid flood irrigation, and try to avoid water storage in the ditch; Fourth, the cultivation density is also reasonable to avoid overcrowding and lack of ventilation.

5. Apply unrotted organic fertilizer.

To prevent cabbage root rot caused by insufficient organic fertilizer, first of all, we must ensure that the applied organic fertilizer has been fully fermented and there is no fecal odor, and at the same time, when applying organic fertilizer, we should try to spread evenly to avoid excessive concentration. To avoid the root rot of cabbage caused by this form, the emphasis is on prevention, and the microbial agent can be selected to inhibit the pathogen, once applied to the soil and the root burning, root rot, there is basically no effective link measures.

Chinese cabbage rotten roots, there is no help.

If it has been formed, it can be harvested as soon as possible.

Symptoms of Chinese cabbage root rot:

Chinese cabbage root rot mainly infects roots and near rhizomes, and the initial symptoms are water-stained, and finally develop into rot. The vascular bundles of the diseased part turned brown, and the stem was not significantly retracted after being invaded. The initial symptoms of diseased plants are not obvious, and there are often only a few plants in a field, which seems to be the cause"Drought"As a result, the leaves wilt at noon and can recover sooner or later.

Later, agricultural technical measures such as rainwater and irrigation soon spread throughout the field, and the diseased plants dried up and died.

Generally from January to March, the temperature is low, the incidence of cabbage root rot is low, the incidence of cabbage root rot begins to rise from April, from June to September, the temperature is suitable, and the climate is rainy is the peak period of cabbage root rot incidence, and then begins to decline.

Causes: 1. Bacterial source.

The source of bacteria is mostly in the soil, or it may be that the seeds carry the bacteria or the agricultural facilities and equipment carry the bacteria, and eventually infect the cabbage.

2. Humidity. The spores of root rot pathogens can be spread by rain, watering, and daily operations, and the most suitable survival temperature is about 25. Moisture-loving, usually poorly drained fields occur more often, suitable for growth of 50% to 98% humidity, if the soil is too dry, the incidence of disease will drop a lot.

3. Soil pH.

Cabbage root rot disease often occurs in fields with acidic soils, and occurs less often in alkaline soils. Especially now, with the abuse and indiscriminate application of chemical fertilizers and pesticides, soil acidification is becoming more and more serious, and cabbage root rot is becoming more and more frequent and serious.

4. Continuous cropping. Heavy cropping is the key to increase the bacterial content of the soil, and the longer the continuous cropping, the more serious the disease. Moreover, root rot not only infects cabbage, but also the entire cruciferous crops are basically infected with root rot, so continuous cropping is a key factor causing root rot.

Prevention and control methods: 1. Implement quarantine: strictly implement the quarantine system, and it is strictly forbidden to transfer vegetable seedlings and cruciferous vegetables with roots from the sick area to the disease-free vegetable area.

2. Implement crop rotation: the implementation of water-dry rotation or non-cruciferous vegetable rotation for 3 to 4 years in diseased fields can effectively reduce the number of pathogenic bacteria in the field and reduce the occurrence of diseases.

3. Application of lime: Appropriate application of lime can adjust the pH of the soil, which can significantly reduce the disease. The application rate depends on the nature of the soil, generally 75 to 100 kg per mu.

7 to 10 days before planting, spread evenly on the soil surface, and then plough the furrow. Or apply it to the hole when planting, apply about 25 grams of hole, and apply it to the other side of the vegetable seedlings in the hole to avoid the root system from directly contacting the lime and hurting the roots.

4. Strengthen cultivation management: choose sunny days for planting vegetable seedlings, do a good job in field drainage, and apply well-rotted compost as base fertilizer. Remove the diseased plants at any time to prevent the spread of the bacteria, remove the remains of the diseased plants after harvesting, and burn them in a centralized manner.

5. Pharmaceutical prevention and control: In the early stage of the disease, the roots are watered with 50% carbendazim 500 times or 50% chlorobromoisocyanuric acid 1000 times, and each plant is treated with liquid medicine to kilograms.

Root rot is a common disease of Chinese cabbage during planting, which will lead to the gradual death of Chinese cabbage, which seriously affects the yield and quality and reduces the economic benefits of farmers. So what causes Chinese cabbage root rot? What about rotten roots?

Let's take a closer look.

Causes of root rot of Chinese cabbage and prevention methods.

1. Rotten roots caused by roots.

Chinese cabbage is a semi-cold vegetable, prefers a mild and cold climate, is neither cold nor heat tolerant, and at the same time prefers a humid environment, but is not waterlogged. In the environment of high temperature or low temperature at the time of planting, if there is too much water accumulation in the soil during heavy rains during the rainy season, it will lead to necrosis of the root system due to lack of oxygen, resulting in root pruning. In addition, if the Chinese cabbage is in the high temperature period in the early growth stage, the high-temperature root will appear; On the other hand, in the late growth stage of Chinese cabbage, if the temperature is too low, low-temperature roots will appear.

Causes of root rot of Chinese cabbage and prevention methods.

2. Root rot caused by soft rot.

Soft rot is also one of the causes of root rot of Chinese cabbage, which is very prone to soft rot when planted on higher terrain and prone to water accumulation, and excessive application of nitrogen fertilizer, or insect bite or damage to the plant, resulting in the invasion of pathogens and infection of soft rot. Soft rot mainly harms the rhizome, the petiole appears water-stained, the outer leaf loses water and wilts, and the rhizome rots when the disease is severe. It is full of yellow sticky, emits a peculiar foul odor, and causes the whole plant to rot.

Causes of root rot of Chinese cabbage and prevention methods.

3. Preventive measures for rooting.

Choose a plot of land with higher terrain and good drainage to plant, so as to avoid excessive soil water accumulation and lead to the phenomenon of rooting, in the early stage of growth, in case of high temperature climate, you can go to shading measures to prevent high-temperature roots; In the later stage of growth, the low temperature can be increased by mulching and fertilizing to prevent low-temperature rooting. During planting, weeding can be done through tillage to increase the permeability of the plant, so that the root system can breathe and stretch normally, and in the later stage of growth, tillage can also improve the low temperature, so that it can reduce the probability of frost damage. Drain water in time after rain to prevent rain and waterlogging, and it is strictly forbidden to flood irrigation when watering, so as not to root up.

Causes of root rot of Chinese cabbage and prevention methods.

4. Soft rot prevention and control methods.

Precautions against soft rot are also avoided on low-lying, sticky plots, and solanaceae, melons and fruits, and cruciferous vegetables should be avoided before planting plots. At the onset of the disease, it can be sprayed with agricultural streptomycin sulfate or neophytomycin, once a week, and sprayed 2-3 times continuously depending on the condition.

Causes of root rot of Chinese cabbage and prevention methods.

The above are the causes of Chinese cabbage root rot and the prevention and control methods.

1. Carbendazim.

After the cabbage rots the roots, carbendazim solution can be used on it. Cabbage root rot is caused by bacteria growing in the root soil and polluting cabbage, and the function of carbendazim is to remove bacteria, so after the cabbage root rot, it can be watered with diluted carbendazim solution to help the plant restore healthy growth.

2. Reduce watering.

Cabbage root rot, may be watered too often, or long-term rain cause, in the later maintenance of cabbage, can be loosened soil, ventilation, discharge excess water in the soil, can also reduce the amount of water provided for cabbage, so that the plant better growth.

3. Maintain temperature.

Cabbage root rot may also be due to the high ambient temperature. Cabbage is a cool-loving plant, suitable for growing in an environment of about 20 degrees, if you plant cabbage in high temperature weather in summer, it will lead to root rot phenomenon of cabbage, at this time you need to build a shade net for it, and ventilate and dissipate heat for the plant.

4. Stop fertilizing.

Cabbage root rot may also be due to excessive fertilization. Cabbage in the process of growth of nutrients demand is larger, in the maintenance of the fertilizer provided for it too much, will lead to cabbage fertilizer, root rot, at this time can be poured into the soil a lot of water, dilute the fertilizer in the soil, help the plant to resume growth. Root rot of Chinese cabbage may be a problem with the soil, at this time, you can use Ribery Yanwo microbial agent with root enjoying rooting agent to help condition the soil and promote rooting.

Chinese cabbage rots mainly because of wilting and soft rot.

1. Wilt disease: In the early stage of the disease, spray 600 times of 75% chlorothalonil wettable powder, or 500 times of 60% alum wettable powder, or 600 800 times of Pulik water solution, spray once every 7 10 days, and spray 2 3 times.

2. Soft rot: First, timely control of aphids, cabbage worms, diamondback moths and underground pests. Second, at the beginning of the disease, 72% of agricultural streptomycin 3000 4000 times liquid foliar spraying, spraying to the diseased plant and surrounding plants as the focus, and pay attention to spraying the petiole and stem base close to the ground, when the disease is serious, you can use 700 times the liquid of Dixon to irrigate the roots.

Green exhibition plus root rot spirit irrigation roots, this effect will be good.

1. If it is because of the rotten roots caused by the roots, the specific methods are:

1. Plot selection.

Choose a plot of land with high terrain and good drainage for sowing or planting to avoid standing water and roots.

2. Proper shading.

In the early stage of Chinese cabbage growth, in case of high temperature weather, shade nets can be used to properly shade to prevent the formation of high-temperature roots.

3. Cultivating loose soil.

By cultivating and loosening the soil, the soil aeration is increased and the activity of good gas microorganisms is promoted. Cultivating can also regulate soil moisture status, which is conducive to root extension, and in the later stage of Chinese cabbage growth, cultivating is also conducive to raising ground temperature. At the same time, some Ribery Yanwo microbial agent can be applied to help condition and improve the soil.

4. Control soil moisture.

Drain water in time after rain to prevent rain and waterlogging. When the soil is short of water and needs to be watered, the amount of water should be appropriate, and it is strictly forbidden to flood irrigation, so as not to cause root accumulation caused by stagnant water.

Second, if it is because of soft rot caused by root rot, the specific methods are:

Avoid planting on low-lying, sticky plots, and avoid Solanaceae, melons and fruits, and cruciferous vegetables before planting plots. You can choose to add 100 kg of water or 70% Dixon 600 times per sachet to irrigate the roots, or you can use 20% Rocronella 600 times or 47% Garinon 800 times once every 7 days, spraying 2-3 times.

What you should say is what to do if the cabbage planted in the ground rots the roots, first of all, whether it is watered too much, and the roots will be covered and rotten when encountering high temperatures, and the other may be improper fertilization or too much fertilizer to burn the roots.

If the cabbage roots are rotten, clean up the soil first, and then replant the cabbage seedlings.

This is root rot, change a piece of land to plant some fungicide, root rot medicine.

Summary. Hello dear! Root rot of cabbage is caused by excessive watering or excessive water accumulation in the soil during the rainy season, resulting in necrosis of the root system due to lack of oxygen, resulting in root soaking.

In the early stage of growth, in case of high temperature climate, shading measures can be taken to prevent high-temperature roots, and timely drainage should be carried out after rain to prevent rain and waterlogging, which can effectively prevent cabbage root rot.

What's going on with the rotten roots of the cabbage.

What's the matter with the rotten roots of the freshly unearthed cabbage.

Hello dear! Root rot of cabbage is caused by excessive watering or excessive water accumulation in the soil during the rainy season, resulting in necrosis of the root system due to lack of oxygen, resulting in root soaking. In the early stage of growth, in case of high temperature climate, shading measures can be taken to prevent high-temperature roots, and timely drainage should be carried out after rain to prevent rain and waterlogging, which can effectively prevent cabbage root rot.

Cabbage rot is mainly due to the occurrence of soft rot, which mostly starts from the rosette stage to the heart stage, and the disease is more serious from spring to autumn, mainly harming leaves, tender and juicy tissues, stems or roots. After the onset of the disease, there is a water-stained or water-soaked translucent rotten brown spot, the diseased part will also appear mucus, and emit a foul smell, after the onset of the leaves, there will be wilting, a few days later, the outer leaves are flat to the ground, the heart or leaf ball is exposed, the cabbage heart part of the leaf ball is rotten, and the leaf ball rot will also occur in a humid environment. Causes:

Cabbage is mainly divided into natural cracks, insect wounds and mechanical injuries, in the cabbage heart-wrapping period, the resistance to soft rot is reduced, in the rainy environment, the wound is very easy to get sick, generally continuous cropping, low-lying land and early sowing places are more serious.

I don't work hard.

I'm a freshly sprouted seedling, how to deal with it.

Cabbage is prone to soft rot, this disease usually appears in the heart of the disease, there will be rot, when it appears, it must be removed in time, and then sprayed in time, in addition to reasonable irrigation, to ensure sufficient water.