The sowing date for small watermelons should be determined based on the temperature and time of colonization. Seeding can be carried out at any time in a greenhouse under warming conditions. In semi-protected cultivation, the sowing date can be determined according to the duration of planting and the age of the seedlings. The determination of seedling age depends on the form of nursery and the time of planting. Under normal circumstances, 3 true leaves can grow in 30 days and 5 true leaves grow in 40 days. The earlier the colonization time, the age of the seedlings should be appropriately extended, and vice versa. Practice has proved that seedlings should not exceed 4 true leaves at most. In the field, wind barriers are applied with multi-layer covering, and the colonization period is determined before the final frost period; if only the mulch is covered, the planting period is determined after the final frost period. In short, the larger the seedlings, the heavier the roots are when planting, and the longer the time for seedlings to grow. Heyin Five Spice Powder,Five Spice Powder Contains Cinnamon,Five Spice Powder Contains Star Anise,Five Spice Powder Contains Fennel Zhejiang Shanying Trading Co.,Ltd. , https://www.shanyingtrading.com