How to judge "fake life" and "fake death" in landscaping seedlings

Every spring, after the planting of landscaping seedlings, some seedlings often appear the following phenomena: Analyze the reasons of these phenomena: The phenomenon of false living of landscaping seedlings is because some seedlings branch by virtue of their own stored nutrients, but they die because their roots are too weak, they are seriously injured when transplanting, or they are planted too deeply and the conditions are not suitable. When the germinated seedlings are not supplied with water and nutrients for a long time, the nutrients stored in the seedlings are exhausted, so they dry up and die. The phenomenon of fake dead seedlings is completely different from fake birth, but the reasons are similar. The main reasons are poor quality of seedlings, poor root growth and development, or excessive damage to seedlings, and no suitable environmental conditions for seedling growth and development have been created after planting. Accordingly, preventive measures should be taken from the following four aspects: 1 The quality of planted landscape seedlings must meet the standard, and the seedlings should be full, strong, fresh and well-developed in root system. At the same time, be careful not to damage the root system too much when starting seedlings, and leave as many secondary rooting lines as possible. 2. When planting seedlings, the pit should be bigger, and the gravel and brick lamps in the soil should be cleaned up and properly fertilized. When planting, it should not be too deep. In general, the root neck or joint should be flush with the surface. 3. When planting garden seedlings, the roots should not be in direct contact with chemical fertilizers. Mix fertilizer with soil, cover it with loam, and then plant it. It is very important to water the roots to prevent them from rotating. 4. The stem of the seedling depends on the bud of the tree. Full buds must be selected during plastic surgery to avoid weak buds and blind buds.