Specific solutions to growth retardation during use of seedling trays

The characteristics of raising seedlings in seedling trays are remarkable, and they are also based on a complete set of seedling raising techniques. If the seedlings are not strictly managed during the process of raising seedlings in the seedling tray, huge losses will be caused if the seedlings fail. When problems such as delayed growth occur in seedlings, we should pay attention and be extremely alert. If not solved in time and with limited measures, the planting or sale of seedlings will be affected and certain economic losses will be caused.

1. Increase the daily average temperature by 2°C to 3°C.

2. Use positive DIF (day temperature is higher than night temperature).

3. Master the correct watering method, do not water until it is dry, and water thoroughly.

4. Use more ammonium nitrogen fertilizers (such as 20-10-20, urea, etc.) multiple times, and keep the nitrogen concentration between 150ppm and 250ppm. Under such water and fertilizer management conditions, the pH and EC values of the medium should be checked frequently to avoid problems with normal root growth and nutrient absorption.

5. Increase the light level to maintain it between 16140 and 26900 lux.