The turnip is black, rotten, and smelly, what s going on? How is it managed?

There may be several reasons why turnips are black, rotten, and smelly:

1.Black rot: This is a disease caused by bacteria in the soil.

In addition to soil factors, temperature, weather, planting topography and soil quality, and the amount of fertilizer may also affect the growth and health of radishes. If the radish shows this symptom, it may be due to boron deficiency, try adding some borax to the irrigation water.

2.Bacterial soft rot or black rot: This may be due to the lack of oxygen in the roots due to the lack of rainwater in time, or the burning of the roots due to insufficient rot of the fertilizer, which triggers bacterial infiltration and root rot.

3.Sowing problems: If sowing too early, improper selection of plots, or insufficient application of organic fertilizer, etc., may also cause radishes to have the above symptoms.

For the management of turnips, the following measures can be taken:

1.Adjust the soil: Dry the land deeply so that the organic fertilizer is fully decomposed. At the same time, the pH of the soil is tested and maintained in the range of 7, which can be adjusted by sprinkling lime.

2.Seed treatment: Seeds are treated by methods such as soaking seeds in warm soup or soaking with pesticides to enhance the disease resistance of seeds.

3.Late sowing at the right time: choose the right sowing time, generally sowing can be carried out in the beginning of the autumn festival.

4.Rational fertilization: apply fully rotted organic fertilizer, never use raw circle manure. Once organic fertilizer that is not rotting is used, it may greatly increase the chance of rotting disease.

5.High ridge planting: Adopt high ridge planting to water reasonably, maintain soil permeability, and promote the healthy growth of radish roots.

6.Drainage management: It is strictly forbidden to flood irrigation, drain water in time after rain, and keep the ground free of stagnant water.

7.Pesticide control: If radish is found to have symptoms of pests and diseases, use appropriate pesticides for control as soon as possible.

Overall, the healthy growth of radishes requires a good soil environment and correct planting management. If you have any questions, it's best to seek help from a professional.

It's rot disease.

It is necessary to water reasonably, the ground is not dry and watered, strengthen the cultivation, maintain the permeability of the soil, and keep the height of the ridge unchanged no matter how many times it is cultivated. Only through cultivating can the radish roots be supplied with sufficient oxygen to promote their healthy growth.

Pharmaceutical prevention and control. Before the onset of the disease, the roots can be watered with a targeted agent in advance, and each plant can be watered with three taels of medicinal solution, a total of 2-3 times. If aphids are found, spray them as soon as possible.

Radish black rot, commonly known as black heart and rotten heart, is a disease caused by bacteria. The leaves are infected, V-shaped spots appear on the leaf margins, the leaf veins turn black, the leaf margins turn yellow, and then extend to the entire leaf. The infected duct in the root turns black, and the internal tissue is dry rot, and no obvious symptoms can be seen on the outside, but the bone marrow is mostly black dry rot, and then a cavity is formed.

Soft rot tends to occur in the field and eventually rots. May be soft rot: the roots tend to start from the tip of the root and have oily brown spots.

After the development period, the roots become soft and rotten, and then spread upwards to make the heart leaves black and brown and soft, and rot into slimy mud.

The use of clothianidin copper, agricultural streptomycin, mesomycin, leaf conazole, chlorbromoisocyanuric acid, copper rosin acid and other drugs for prevention and control of this is a rot disease, to water reasonably, do not water the land, strengthen the cultivation, maintain soil permeability. No matter how many times you plough, the ridge height should remain the same. Only through cultivating can the radish root system be provided with enough oxygen to promote its healthy growth.

Chemical control. Before the onset of the disease, the roots can be watered with root stones combined with high-targeted drugs, and each plant can be watered with 3-2 times of medicinal solution, a total of 2-3 times. Find aphids and spray them as soon as possible.

Onset conditions: suitable temperature 25-30, high temperature and rain, continuous cropping or early sowing, low terrain, excessive irrigation, poor drainage, little or unripe fertilizer, frequent human injuries and insect injuries. Prevention and control methods:

Focus on prevention and adopt a comprehensive prevention and control approach. 1) Crop rotation and stubble, using formula fertilization technology. 2) Sow at the right time, not too early.

3) Choose disease-resistant varieties such as Fengguang generation radish, Qiaohong No. 1, Shijiazhuang white radish, etc. 4) Seed treatment. Soak in 50 warm water for 30 minutes, or sterilize at 60 dry heat for 6 hours, or mix seeds with 50% of the seed weight of Fumei double wettable powder.

5) Soil treatment. Before sowing, 750 grams of 40% pentachloronitrobenzene powder were applied to each acre. The method is to take 750 grams of fungicide, add 10 liters of water, mix it with 100 kilograms of fine soil, and sprinkle it into the hole.

6) Strengthen field management, frequent irrigation with small water at the seedling stage, reduce soil temperature, and set seedlings at appropriate intervals. 7) Spray 72% agricultural streptomycin sulfate soluble powder 3000-4000 times, 47% gallonon wettable powder 700 times or 14% copper complex aqueous solution 300 times at the beginning of the disease, spray once every 7-10 days, and continuously control 3-4 times.

This is caused by the fungus infection of white radish, which can be prevented with carbendazim, and generally sprayed 2 or 3 times to have obvious effects.

At this time, irrigation must be strengthened, prevention must be carried out from the roots, and timely sterilization, and some chemicals must be used for irrigation, and drainage must be done well, and there is also to choose the right soil, timely ventilation.

We must implement crop rotation and stubble, we must use the formula fertilization technology when fertilizing, choose some disease-resistant varieties, soak the seeds in warm water at 50 degrees before planting, and then sterilize for 6 hours, and we must disinfect the soil, strengthen the management of the field, and we must water more to reduce the temperature of the soil.

deteriorated, got black rot.

Radish black rot, commonly known as black heart and rotten heart, is a disease caused by bacteria, mainly harming leaves and roots. At the seedling stage, the diseased cotyledons are water-soaked, and the root pith becomes black and rotten. The leaf is diseased, and yellow spots are produced in many places on the leaf margin, which becomes lateral"v"The glyph develops inward, the leaf veins turn black and reticulated, and gradually the whole leaf turns yellow and dry.

The pathogen develops along the veins and vascular bundles to the short stems and roots, and finally causes the whole plant to turn yellow and die. After the fleshy roots of radish are impregnated, dark gray lesions can be seen through sunlight, and transverse cutting radish can see that the vascular bundles are radial, black-brown, and the severe ones are dry and hollow, and the vascular bundles overflow with bacterial pus, which is different from the physiological blackening caused by boron deficiency.

Pathogens overwinter in seeds or soil, on diseased remains, and infected plants infect the ground, preventing seedlings from being unearthed. Prevention and control measures for radish black heart disease. The planting area should be deeply cultivated and ditched, drainage and irrigation measures should be done, and at the same time, soil permeability should be increased to prevent water accumulation in the field.

There are three main reasons for the occurrence of black heart in white radish: one is boron deficiency in the soil, the other is the lack of oxygen in the soil water or compaction, and the third is caused by black rot bacteria. As long as the black heart part of the black heart is removed, the white matter can be eaten.

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Is it rotting in the ground or is it time to store?

When the carrot is dug up, the roots have rotted, which seriously affects the growth of the carrot due to excessive soil moisture. Carrots prefer fertile, organic soil. In terms of water requirements, one can not lack water, if there is a lack of water, it is easy to affect the growth of carrots, and serious water shortage will stop the growth of carrots.

Second, do not make the soil too much moisture, such as too much water, watering too often, resulting in thin air in the soil, roots in a state of anaerobic respiration, for a long time, will produce roots, resulting in the occurrence of rotten roots, affecting the normal growth of leaves and the normal expansion of fleshy roots.

You can refer to it.