1) Reduce the amount of seeds used and ensure rapid seedling emergence. (2) Ensure seedlings emerge in an orderly manner and within a short period of time. (3) Facilitate centralized management and save labor. (4) Ensure quick recovery and high survival rate. 5. Unused trays should be stored in a cool, dry place. It is strictly prohibited to expose empty trays to direct sunlight. Our company has a large inventory of