Wendeng pepper seedlings to be careful
“Pepper seedling leaves turned yellow, and some stem bases died, somehow.†A person in charge of the chili base called and the technician Zhang’s analysis might have been gas or epidemic, but he couldn’t make up his mind. If there is a disease, it will cause destruction of shed within a few days. The loss of 10 acres of pepper seedlings will be 100,000 yuan. The situation is critical! Common diseases such as pepper blight and damping-off disease, Zhang master should be able to identify and solve. During this period of time, it is estimated that the humidity in the shed is high, the leaves are yellow, and the stem base is dead. Is it gray mold? The conditions of the epidemic are mainly high temperature and high humidity. During this time, the temperature is low and no conditions occur. It should not be. The author thought all the way on the way to the base. By the way, the chlorothalonil and chlorothalonil-resistant fume-fighting agent for control of gray mold had taken place. In the mud, the author went to the pepper base and opened the shed to immediately smell a pungent nitrogen. When I walked into the shed, I saw that the pepper seedlings in the center of the greenhouse had just emerged from the true leaves. The middle part of the two cotyledons was obviously immersed in green water. The leaves had not yet collapsed, and the leaves had become white and softly collapsed, and the tip of the cotyledon and The plant was intact and the center of the pepper seedlings was intact. The diseased plant was pulled out and the stems and roots were still very robust. This obvious condition has not yet appeared on both sides of the shed. Carefully observed, some cotyledons have the symptoms of lightening and transparency. Near the diseased pepper seedlings, weeds also had the same symptoms. Entering another greenhouse, you can smell a faint smell of nitrogen. A few strains of the same symptoms have already appeared in the shed. The humidity in the shed is slightly larger and the temperature is not as high as 8°C. "I have asked other people who have ever had pepper seedlings to see this kind of situation," said Master Zhang. Combining the above conditions, the author analyzed that this is a more typical nitrogen dioxide gas hazard. The main source is the basal fertilizer applied. It is understood that the use of high-nitrogen-containing organic compound fertilizers during nursery beds, coupled with low temperature in the recent period, long closing time, insufficient ventilation, and accumulation of harmful gases such as nitrogen dioxide in the shed , and this gas can cause harm as long as 2 ml per cubic meter. Once this happens, the most important measure is ground ventilation, especially when there is a special odor in the facility. For land that has caused serious damage, fertilize it with water as early as possible to promote new shoots. It is worth reminding that when formulating nursery culture soil, organic fertilizers should be thoroughly cooked, with or without the use of highly volatile nitrogen fertilizers, top-dressing and top-dressing. If artificial heating is used during the low-temperature stage, the organic fertilizers should be used. Low sulfur fuel heating, etc., to prevent the appearance of other gas harm. In addition, the humidity in the shed is too high, the method should be taken to increase the wetness of the leaves by adding hay ash, and smoked with chlorothalonil and procymidone for 1 or 2 times to prevent botrytis caused by the seedling stage. Sclerotinia and so on. Mint is something that people are familiar with and will be impressed with it if they have been exposed to it. Yes, when it comes into contact with the tongue, it can produce a cool feeling. In addition, the mint has a refreshing effect. When people feel drowsy, they will be excited when they touch the mint. stand up. We add this magical substance to the Electronic Cigarette to provide a good experience. It turns out that customers like it very much. Quit Smoking Alternatives,Menthol Flavor E-Cigarette,Menthol Heatsticks,Electronic Cigarette Alternative Dongguan Vanilla Bioengineering Co., Ltd. , https://www.healthecigarette.de