What is the seeding tray?

The hole shape of seeding tray mainly includes square and round. The matrix of square hole is about 30% more than that of round hole, and the water distribution is more uniform, and the seedling root system is more fully developed. The size of the standard seeding tray is 540mm×280mm, and the number of holes is between 18 and 800 due to the different diameters of holes. In the cultivation of medium and small seedlings, 72- 288 seeding tray is appropriate.
The color of the seedling seeding tray affects the temperature of the root of the plant. White polystyrene foam plate reflective sex is better, more used in summer and autumn early seedling, in order to reflect light, reduce the heat accumulation of seedling root. In winter and spring, black seedling plate is chosen because of its good light absorption, which is beneficial to green seedling root system. After the seedlings grow up, they should start to use the rapid root control seedling technology and move into the rapid root control seedling container to continue to grow.