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It should be caused by insufficient soil nutrients, which can be solved by watering some thin liquid fertilizer frequently.
Chinese cabbage does not set balls, commonly known as Chinese cabbage, cruciferous family-Brassica, the same variety of Chinese cabbage, an annual herbaceous plant, native to China. English name: bok choy, Pak-choi (pronounced in Cantonese), Chinese white cabbage, Chinese mustard
Powdery mildew is a fungal disease, which has two stages: staged and non-phased. In cold regions, the pathogen overwinters with the diseased residue in the closed capsule shell of the fruiting body in the sexual stage, and becomes the source of the initial infection of the disease in the second year. The secondary source of infection is the conidia produced in the diseased area. >>>More
It feels like overwatering, and it needs to be watered without drying, and it is easy to produce this phenomenon if you water more frequently. Rotten roots.
Under natural conditions, these vegetables are not grown now, they are all overwintering crops sown in autumn. Now the temperature is too high, so you can only eat small seedlings.
This is mainly due to the lack of fertilizer, and all kinds of fun is also a kind of fun!