The common Chinese cabbage rotten heart has two kinds of situations. First, soft rot occurs when it is relatively warm. The cabbage heart damages the insects and spreads the soft rot bacteria. The rot is wet and sticky. There is also a so-called rotten heart, which is dry and even rots inside during the storage period. This rotten heart, also known as "dry heart" disease. It is due to calcium deficiency in plants. Generally due to the long seedling period, lack of water in the core period, the soil lacks calcium, is the saline-alkali land, the application of nitrogen fertilizer is too much, the varieties of calcium demand is caused by high. If you are in Hebei, the bad things that are happening now may be "dried heart."
How to prevent and cure Chinese cabbage
1 selection of disease-resistant varieties. In general, the straight type and the Qing Gang type are more resistant to disease.
2 Earlier cultivating sunburn and applying organic fertilizer. Small high ridge cultivation, appropriate sowing.
3 Timely drainage after rain, fertilizer and water management should be coordinated to avoid excessive and excessive soil. Don't flood the water during the period of your heart.
4 Early eradication of various pests that cause wounds. Such as yellow striped flea beetle, cabbage caterpillar, diamondback moth, coccus leafhopper, earthworm and cabbage night robber.
5 timely removal of diseased plants. Serious diseased plants found in the field should be timely harvested or removed to reduce the source of disease and prevent the spread. Especially before heavy rain or before irrigation should be checked and dealt with. After removing the diseased plants, limestone can be sterilized by spraying.
6 chemical control. Before the onset or early onset of the disease can be sprayed to prevent the spread of the disease. Spraying should focus on the mildly infected plants and the surrounding plants. Pay attention to the petiole and stem base near the surface.
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