What is the cause of Chinese cabbage? Do not pay attention to careful production!

Chinese cabbage is an important vegetable variety for wintering in northern China, and it is the main source of income for farmers. Cabbage is widely planted, but it often encounters rotten problems. Not focusing on prevention and control has a great impact on production! What is the bad heart of cabbage? How to prevent it? The following details:

What is the bad heart of Chinese cabbage?

There are two kinds of common Chinese cabbage rotten heart. One is soft rot, which occurs when it is still warmer. The heart of the cabbage makes the insects harm, and the soft rot is passed on. The decaying part is wet and sticky. There is also a so-called bad heart, which is dry and even rotten inside during storage. This kind of bad heart is also called "dry heart" disease. It is caused by calcium deficiency in plants. Generally, due to the long period of seedling, the lack of water in the core period, the soil is deficient in calcium, it is a saline-alkali land, and the nitrogen fertilizer applied is too much, and the variety is high in demand for calcium. You are in Hebei, and now the bad heart that happens, it may be "dry heart".

How to prevent and cure Chinese cabbage

1 use resistant varieties. In general, straight-type and green-type varieties are more resistant to disease.

2 The early cultivation of the land, the application of decomposed organic fertilizer. It is cultivated in small high ridges and planted at a suitable time.

3 timely drainage after rain, fertilizer and water management should be coordinated to avoid excessive and excessive soil. Do not flood the water during the period of the package.

4 Eliminate all kinds of pests that cause wounds early. Such as yellow stripe, cabbage caterpillar, diamondback moth, leafhopper, Diming and cabbage night moth.

5 promptly remove the diseased plants. Serious strains found in the field should be harvested or removed in time to reduce the source of the disease and prevent the spread. In particular, check the treatment before heavy rain or before irrigation. After the diseased plants are removed, the holes can be sterilized by spraying with lime water.

6 chemical control. Spraying before the onset or at the beginning of the disease can prevent the spread of the disease. Spraying should focus on lightly diseased plants and surrounding plants, paying attention to the petioles and stem bases that are close to the surface.

More pesticide encyclopedia, please pay attention to China Pesticide Network

(Source: Good Agricultural Resources Network)