Consultation: I am a silver grower. The baby food grown in the solar greenhouse is now entering the infancy period. It looks good outside, but the leaf is not curled up, thinned, browned and dried up. How is this going to happen and how can we prevent it?
Answer: According to domestic experts, there is no concept of "baby food" in foreign countries. The term "baby food" belongs to "made in China." In fact, the baby food is a kind of Chinese cabbage with special edible value. Therefore, the various diseases that occur in the production of baby food can be referred to Chinese cabbage.
First, the symptoms
The incidence of dry Chinese cabbage heart disease in the fields began at the beginning of the rosette period. First, the edges of the young leaves in the cabbage heart were dry or curled up. They could not be properly wrapped. Although the outside looks normal, the hearts inside the leaves have started to thin and brown. Dry. Symptoms of Chinese cabbage after balling are even more pronounced, especially during storage, the lesions will continue to expand, sometimes with watery, soft rot but no odor. Plants that are generally dry-heart-burning are prone to bacterial bacterial soft rot, exhibit severe rotting, and emit a foul odor.
Second, prevention and control methods
1. Strengthen fertilizer and water management. In the management of fertilizers, it is necessary to use enough base fertilizer, in particular, to apply adequately fermented and decomposed organic fertilizers. In terms of water management, due to the fact that cabbage is a wet vegetable, a moist soil condition is required throughout the growing season, especially during the rosette period and the filling period. However, at the same time, it is necessary to prevent flooding and flooding and cause roots and rot.
2. Spray foliar fertilizer. When dry-heart-burning hearts are found in the Chinese cabbage cabbage, they should be immediately watered and sprayed with calcium foliar fertilizers, such as 0.5% to 0.7% calcium chloride, or 1% superphosphate, or 0.7% manganese sulfate solution. Every 5 to 7 days, 3 to 4 times, can receive better control effect.
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