Spring cabbage seedlings: In the middle and lower reaches of the Yangtze River, it is generally appropriate to plant seeds from late February to early March. To prevent seedlings from reaching low temperatures through vernalization, plastic sheds or cooling beds can be used to incubate seedlings and cover straw at night, which is conducive to seedling growth, cultivating strong seedlings, and preventing early twitching. In the method of raising seedlings, seedlings can be sown, and seedlings can also be fed with nutrients. Among them, seedlings are best cultivated with nutrients, and the survival rate of transplanting is high. Spread the seedlings at the time of 1 leaf and 1 seedling, and keep the seedlings at a distance of 2 to 3 cm. 3 to 4 true leaves when transplanted. Poker Chips,High Quality Poker Chips,Poker Chips Details, CN Eastony Industries (NingBo) Co., LTD. , https://www.eastony.com