In recent days, persistent rainy weather in some areas has affected the normal growth of vegetables in sheds. This cherry tomato in the greenhouse planted by Master Li from Shek Village, Initae Town, Shouguang City, encountered a lot of trouble.

After the reporter came to his shed, he first looked for a few illnesses and handed it to the reporter. Recently, the virus disease was very serious. Is this a virus that causes streak? The reporter took a close look and said to him with certainty that this is not what the stripe virus is, but the physiological tomatoes. With a knife, you can determine what kind of fruit you belong to.

The reporter told him that "black skin" is a typical characteristic of tomato rot, and it is also the main basis for distinguishing it from viral diseases. The difference is: After cutting the fruit with a knife, it can be seen that the skin of the rot is not discolored, and the disease develops outward from the fruit. The epidermis of the virus turns brown and develops from the outside to the inside, and the pulp turns brown.

After distinguishing between rot and flaking fruit, Master Li asked why the former was heavy during the recent period. In this regard, the reporter believes that poor cultivation conditions are the direct cause of rot and fruition. Recent rain and rain, lack of lighting in the shed, poor photosynthesis in stems and leaves, insufficient photosynthetic products, resulting in cherry tomato fruit growth and development required Nutrition is severely inadequate and tendon rot occurs. In addition, the plants with high nitrogen, low potassium, and lack of boron have a tendency to grow long, and rot and fruit are particularly serious.

In production, in order to prevent the occurrence of tendon rot, it is first necessary to apply fertilizer on the basis of basal fertilization, according to the growing trend of the plants, and to reasonably top-dress. Usually when the cherry tomato fruit grows up to the size of the peanut, the topdressing fertilizer or the water-soluble fertilizer of the male body is applied one time, and the mu 8-10 kg is used to promote the growth of the tree. And pay attention to foliar supplement of potassium dihydrogen phosphate and poly boron leaf fertilizer. Second, we must also pay attention to improving the environmental conditions in the shed, such as temperature adjustment, lightening, and ventilation. In addition, if bad weather occurs, it can be used in advance of high-energy fertilization, or spraying Baileyjia leaf fertilizer to improve the plant's resistance to stress.

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