It didn't take long for the newly planted strawberries. When the seedlings just came out, there was a phenomenon of dead and dead trees, and the old king was anxious. The celery that Laojia just planted, the phenomenon of dead seedlings wave after wave, the roots are all black, and it is impossible to prevent it. You should consider whether it is a disaster caused by earth-borne diseases!
This is also a problem that has been plaguing vegetable farmers in recent years. Nowadays, the soil-borne diseases are getting more and more serious, which has seriously affected the normal growth of crops. Various methods have been tried all over again, that is, there is no thorough phenomenon. In the second year, the soil-borne diseases still occur, and people are getting angry. What should we do? Experts say that if we want to reduce the occurrence of diseases, we must solve the problem fundamentally.
As we all know, high-quality vegetables need to be cultivated with high-quality soil. The soil is not good, and vegetables are definitely not found. The root system is the channel through which plants communicate with the soil. To prevent soil-borne diseases, it is necessary to manage them from the roots, and to manage the roots in a healthy way.
How did the soil-borne disease happen? Be sure to understand the cause before you can get the right medicine!
1. A large amount of nitrogen fertilizer is used. We all know that many microbial pathogens treat nitrogen as nutrients.
2, planting the same crop all the year round, this is what we often say, leading to the accumulation of the same type of bacteria.
3. Nematodes in the soil and underground pests damage the roots of the plants, causing the wounds to fail to heal quickly and allowing the bacteria to quickly invade the infection.
Prevention:
1. High temperature disinfection can be used before planting in greenhouses. It is commonly known as the shack. It has the best effect in August. The shortcoming of this method is that the symptoms are not cured, and can only be implemented in August, once every year.
2, chemical pesticide preparations for prevention and control, commonly used are Duofu fungicides, fungicides, etc., before the soil preparation, soil is sprayed into the soil or sprayed on the surface with a sprayer.
The advantage of using chemical agents is that it is fast and effective. The disadvantage is that all kinds of microbial bacteria are in the nest, which kills the bacteria and also harms the beneficial microbes in the soil.
3. Use microbial bacteria to control soil-borne diseases. After the microbial flora is applied to the soil, the virus pathogens in the soil will be sterilized by bacteria and the ecological chain in the soil will be rebuilt.
The advantage of using microbial flora for soil-borne disease control is to improve soil fertility, rebuild the soil ecological environment, and can be used after planting before planting. The disadvantage is that no pesticide is effective.
It can be seen that if the vegetable growers use the microbial flora to regulate and regulate the soil micro-ecological health environment in the long run, it is undoubtedly the best choice. This method can improve the soil fertility while killing harmful bacteria. A common way.
Soil-borne diseases need comprehensive prevention and control, and negligence in any link will cause soil-borne diseases, so each link can not be ignored, do a good job in soil-borne disease prevention, multi-faceted solution to ensure a good harvest!
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