1、 Cause of stiff seedling

1. Soil hardening: the soil hardens and hardens, the root system cannot breathe freely, and there is water in the basin, which makes the root system in a state of hypoxia, resulting in root rot and stiff seedlings

2. Excessive watering: the newly transplanted flowers have not yet grown new roots in the soil because of their roots. At this time, if you water too much and the basin soil is too wet, it is easy to make the root system aging, deterioration and stiff seedlings

3. Excessive fertilization: the newly transplanted flowers have weak absorption capacity and are sensitive to fertilizer and water. At this time, if the fertilization is improper, the root can not afford it, resulting in root injury and stiff seedlings

4. Poor seedling quality : if the seedling age of transplanted seedlings is too large or too small, and the root is damaged or the seedlings are not refined in advance, it will also cause stiff seedlings

5. Unsuitable transplanting time: when transplanting, if you encounter bad weather such as low temperature and cold injury or continuous high temperature, it will also affect the growth and development of seedlings and cause stiff seedlings

2、 Treatment method

1. Change basin: dig out the flowers from the original basin, remove the old soil and rotten roots, and then soak them in disinfectant for about 3-5 hours. After that, it's best to soak the new basin in water for one day and use it. Lay a layer of gravel on the bottom of the new basin, and then replant it with breathable, drainage and humus rich soil

2. Filling wine: can pour Baijiu into a potted plant with stiff seedlings to restore its growth. Close to the root, pour the Baijiu into the soil. Be careful not to spill the wine onto the plant. The volume of the wine should not be too large, and it will be poured about once in 5 days. Generally, it can be recovered in about 10 days. This method works best after Qingming and before autumn