Reasons for Early Spring Vegetable Seedlings without Germ Spot

When breeding early spring vegetables, due to the high salt concentration or the poor permeability of the soil, and the low temperature of the fields, the plants cannot absorb enough water from the soil to grow normally and the water balance in the organization is destroyed and the physiological activities can not perform. This phenomenon is known as the "physiological drought." Seedlings in early growing stage feel the low temperature for a long time and have fewer roots, and the absorption ability of roots is weak, so long term low temperature will lead to dead seedlings.
Solution:
Strengthen the prevention measures to coldness and increas illumination, improve room temperature, strengthen management.
2 timely fix plant to ensure the occurrence of new roots.
3 timely pruning, elect healthy lateral branches to substitute the main stem. (Reproduced)