Cucumber is a common vegetable variety. In the process of cucumber production, due to improper fertilization, cucumber root development is often caused, root system is underdeveloped, and development is slow. In severe cases, cucumber rooting occurs, and plants and leaves turn yellow, and finally die. Then how to do cucumber root burning? The following agricultural materials Xiaobian for everyone to comprehensively introduce the reasons and countermeasures of cucumber root burning.
First, the reason for burning cucumber
1. Organic fertilizer is not ripe. During the fertilization process, the unfertilized organic fertilizer, especially the unfertilized livestock manure, will release a lot of heat when fermented in the soil. When the fermentation site is closer to the root system or the crop plant is smaller, the heat generated by the fermentation will be Affects the normal growth of roots, causing root burning, which can lead to plant death in severe cases.
2. The concentration of fertilizer in the soil is too large. If the one-time fertilization is too much, the fertilization is not uniform, or the water supply is insufficient after fertilization, the concentration of the soil solution or the concentration of the local soil solution will increase, causing the root water to flow backward, causing the root system to lose water and causing root burning symptoms.
Second, cucumber rooting preventive measures
1. Apply a fully decomposed organic fertilizer. Regardless of the base application or the topdressing, the organic fertilizer should be fully decomposed, especially the livestock manure. If it is not fully decomposed, it may become a source of infection of pests and diseases, which may lead to the occurrence of pests and diseases.
2. Scientific application of chemical fertilizers. When applying chemical fertilizers, scientific fertilization must be carried out according to the instructions for the application of chemical fertilizers. It is not allowed to apply too much fertilizer at one time to avoid causing rooting.
3. Do not apply fertilizer too close to the root system. When fertilizing, it is generally about 10 cm from the root system, not too close to the root system, and do not allow the fertilizer to directly contact the root system to avoid causing root burning.
Third, cucumber root burning remedy
Once the cucumber has burned roots, the following measures can be taken to remedy the problem.
1. Reasonable watering. For greenhouse cucumbers, if the soil moisture is not large, the soil solution concentration can be lowered by watering on sunny days to alleviate the hazard. When watering, some functional fertilizers that promote rooting can be applied to accelerate the germination of new roots and enhance the growth of seedlings. Note that when watering, it should not be too large. It should be poured with small water to avoid too much watering, which causes the roots to root and aggravate the damage.
2. Foliar spray fertilizer. Since the root absorption capacity of cucumber is affected after root burning, it can be supplemented by foliar spray fertilizer, such as spraying chitin + cytokinin + potassium dihydrogen phosphate, to relieve leaf nutrients, and to reduce the absorption capacity due to root injury. The symptoms caused by deficiency, thus enhancing plant resistance, so that plants can quickly recover.
3. The medicine is rooted. After the cucumber is burned, it is easily contaminated by soil-borne diseases. Therefore, the root can be irrigated with a fungicide to prevent the soil-borne diseases from infecting the injured roots, and rotten roots and dead trees appear.
4. Correct application of biological fertilizer. After the cucumber is burned, do not rush to apply biological fertilizer, especially the fermenting bacteria, so as not to cause the manure to quickly dissipate heat and increase the harm caused by burning roots. The biological fertilizer should be applied after the cucumber has returned to normal growth.
5. Remove seriously ill plants. For plants that are severely burned, plants are wilting and dead, and plants that cannot return to normal growth should be removed in time.
What about the cucumber root burning, the reason and countermeasures of cucumber root burning, Xiaobian introduced this to everyone, reminding the farmers to rationally fertilize the cucumber production process, once the cucumber root color changes, it should be Apply the agent in time.
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