Cucumber loose soil wounded roots and vines withered? Cucumber root rot remedy

Cucumber wilt disease is a disease of cucumbers, mostly after flowering and fruiting, the infested plant initially shows that part of the leaves or one side of the plant leaves wilt and droop at noon, like lack of water, sooner or later can be recovered, and then the wilted leaves continue to increase, gradually spread throughout the whole plant, morning and evening can not be recovered, and soon die.

Prevention and control measures. 1) After the cucumber is harvested, the diseased residue should be removed in time, burned or buried deeply, and the soil should be disinfected by spraying disinfectant, and the effect of the drug should be enhanced with the spraying fungicide, which greatly improved the utilization rate of the active ingredient of the agent.

2) Use disease-free new soil seedlings and use nutrient bowls or plastic sleeves to divide seedlings.

3) Crop rotation. Crop rotation with non-melon crops for more than 5 years, and seed dressing with a new high-fat film before sowing can repel underground pests and diseases, isolate virus infection, and improve seed germination rate.

4) Grafting for disease prevention. The grafting and cultivation of cucumber with white (yellow) seed as rootstock is the most effective way to solve the problems of cucumber stubble and wilt.

5) Seed disinfection: use 96%."Evil mildew"Soak the seeds in 3000 times of powder for 20 minutes, then rinse with water, and then germinate and sow seeds, or sterilize them at a constant temperature of 70 for 72 hours before sowing.

6) To strengthen field management and improve plant disease resistance, Trim water-soluble fertilizer should be reasonably applied, light transmittance should be improved, ditching and drainage should be opened in time, field temperature should be reduced, and Kao 3 should be sprayed in a timely manner during the growth period to inhibit the crazy growth of shoots and promote flower bud differentiation. Spray fertilizer at the bud stage, young fruit stage and fruit expansion stage to thicken the fruit pedicle, increase the circulating fruit setting rate, promote fruit development, no deformity, no fruit drop, improve the rate of high-quality commodities, increase yield and income.

7) Strengthen cultivation management. Strengthen cultivation management to make plants grow robust and improve disease resistance. Generally, the use of high furrow cultivation is conducive to reducing the occurrence of diseases.

Spread mulch film or cover straw, strengthen ventilation, reduce ground temperature, prevent flooding, and protect the root system. If a diseased plant is found dead in the field, it should be uprooted immediately, buried deep or burned. After pulling seedlings, it is necessary to remove the residual leaves of diseased plants in the field, do a good job in field hygiene, and implement 3 to 5 years rotation in the plots where the blight disease occurs seriously.

8) Bed soil disinfection According to each square meter of seedbed, the agent is mixed into the nutrient soil. Before planting, the soil should be disinfected and sprinkled into the planting hole.

9) Grafting seedlings Using the characteristics of black-seeded pumpkin to the specialized immunity of Fusarium aspirum cucumber, grafting seedlings with black-seeded pumpkin as rootstock and cucumber varieties as scion can effectively prevent and control Fusarium wilt, which is the most effective method for preventing and controlling Fusarium wilt in production.

10) Adopt the cultivation method of mulching film, and the farmhouse fertilizer used should be fully decomposed. Pull out the diseased plants and burn them outside the field, and sprinkle carbendazim and other agents in the holes of the diseased plants for disinfection. In the summer of 5 and 6 months, after pulling the seedlings, deep ploughing, irrigation, the ground is covered with old plastic sheeting and compacted, so that the soil surface temperature reaches 60 70, 5 10 cm soil temperature reaches 40 50, and it is maintained for 10 15 days, and has a good sterilization effect.

When watering, do small water and water frequently, and it is strictly forbidden to flood with large water.

When the cucumber loosens the soil, the vine that hurts the root withers, then that part of the vine is not good, and it cannot survive, because the root system has lost nutrients.

If it is not a disease, it may be that the root is injured and cannot absorb nutrients, so you need to solve the root problem first, first use some fertilizer that can restore the growth of the root system, and restore the root well

This situation should be unsalvable. Let's plant it anew.

It's because you hurt the cucumber roots, maybe they've been dug up completely, so this happens.

Fertilization is enough, urea is fine.

After the cucumber has rotten roots, it can be removed from the ground and pruned with rotten roots. After pruning, it can be soaked in a sterilization solution and dried, and after drying, it can be transplanted into new soil. During the curing period, keep the soil moist and avoid sunlight.

In the later stage, after the root system of cucumber adapts to the new soil, it can be given sufficient light, water and fertilizer for its growth.

Cucumbers are crop plants, and during the growth period, if they are not properly maintained or attacked by pathogens, their roots are prone to rot. After the cucumber rots its roots, it needs to be removed from the ground and cut off the cucumber's rotten roots with sterilized scissors. After cutting off the rotten roots, the roots can be sterilized by soaking them in a solution of carbendazim or potassium permanganate for 10 to 20 minutes.

After soaking, the roots of the cucumber can be removed and left to dry in a cool and ventilated environment. Once the cucumber's wound has healed, it can be planted in new soil. Choose soil with deep soil, soft soil, good ventilation and drainage, and loosen it.

Transplant cucumbers in the ground, water them appropriately, and do a good job of shading and water control.

The root system of cucumbers has not yet adapted to the new soil, so it is necessary to avoid direct sunlight during the maintenance period and control the amount of watering. In the later stage, after the cucumber adapts to the soil, it can be given sufficient light, water and fertilizer to make it grow healthily. During the maintenance period, it should be noted that cucumbers are not resistant to waterlogging, so they should be watered appropriately to avoid root rot caused by too much water.

During the maintenance period, cucumbers should also be fertilized, and the fertilizer is mainly compound fertilizer containing nitrogen, phosphorus and potassium. During the fertilization period, it is necessary to pay attention to apply as thin fertilizer as possible, as too high a concentration of fertilizer will damage the root system. During the maintenance period, cucumbers should be sprayed with fungicides regularly, generally sprayed once every 20 30 days, which can effectively prevent pests and diseases.

1. Climatic influence, unbalanced water management, improper fertilization management, and root burning.

2. After transplanting cucumber seedlings, the first Zheng of Rong Lutong is easy to hurt the roots and seedlings slowly, and if the root recovery work cannot be done in time, it may also lead to the problem of rotten roots and weak seedlings.

3. Water management and fertilization management are not well controlled, resulting in root rot.

3. After transplanting cucumber seedlings, it is necessary to start to do a good job in promoting roots, pay attention to the supplement of phosphorus and calcium, water and apply micro-supplement root calcium, promote root slowing and seedlings quickly, and prevent and reduce the problem of rotten roots and dead seedlings.

First, the dead seedlings in the cucumber seedling stage are mostly caused by infection with cataplexy and blight, these two diseases are soil-borne diseases, which can be spread by watering, fertilization, etc., and the prevention and control of the above diseases can be prevented and controlled from the following three aspects:

1. Choose disease-resistant varieties, different cucumber varieties, their disease resistance is not the same, in the selection of varieties, in addition to considering the yield and economic benefits, we should also make comparisons, and choose disease-resistant varieties. In this way, the occurrence of diseases can be reduced to a certain extent, the input cost can be reduced, and the benefits can be indirectly improved.

2. Carry out disinfection and sterilization in all aspects, one is to do a good job of seed disinfection, before sowing, you can use the biological fungus agent Lixin Bacteria King warm soup soaking method (40 50 degrees Celsius water soaked for 30 minutes for 1 hour) or use the method of soaking seeds (500 grams of biological bacteria Lixin King 500 times liquid soaking for 2 hours), the above two methods can effectively prevent and control cucumber seedling diseases. The second is to do a good job in the disinfection of the seedbed soil, you can use dead seedlings and rotten roots to irrigate the seedbed soil with 200 water, which can play a role in killing soil-borne pathogens.

3. Timely treatment after the discovery of diseased plants, cucumber seedlings are centered on diseased plants and expand to the surrounding areas, so they should be pulled out of the shed in time after the diseased plants are found, and the plants should be treated with pesticides. Commonly used agents are 600 800 times of Pulik, 600 times of 75% chlorothalonil, and 500 600 times of 58% methalenemanganese zinc for spraying or root irrigation.

2. There are many reasons for the death of cucumber after planting, including the dead trees caused by root rot, vine blight, sclerotinia disease, etc., as well as the dead trees caused by improper fertilizer and water, and the dead seedlings caused by long-term cloudy and sunny weather. In production, it should be analyzed on a case-by-case basis, and different measures should be taken according to different reasons.

1. Timely prevention and control of diseases, and the agent for the prevention and control of root rot can be directly irrigated with rot, or the grafting of black-seeded pumpkin is grafted to white-seeded pumpkin, which has a certain effect. For the prevention and control of vine blight, you can choose to apply the diseased area with Chlorothalonil 600 times after an interval of 12 hours. Sclerotinia sclerotinia can be sprayed with 50% Suclin 1000 1500 times for spray prevention and treatment.

2. Reasonable watering and fertilization, watering should be carried out on sunny days, and ensure that there are 3 or 4 sunny days after watering. The amount of watering should not be too large, because watering will reduce the ground temperature, and the greater the amount of water, the greater the impact on the ground temperature, so the method of watering under the film or watering a small amount of water should be taken to prevent the ground temperature from being too low to adversely affect the cucumber plant.

The temperature is low in winter, and attention should be paid to the use of biological fertilizer or organic fertilizer when flushing, which is conducive to promoting root growth, but the use should be appropriate.