How is safflower growing slowly at seedling stage?

1. The soil of potted flowers without changing pots for a long time is limited. When nutrients are exhausted, plants are often malnourished, which affects the normal growth and development of plants. The solution is to turn over the pots and change the soil every year or every other year according to the plant size, and apply fertilizer and water reasonably.

2. The structure of potted soil is unreasonable. Most potted flowers need soil with rich nutrients, good drainage and good air permeability. This kind of soil is hard to find in a city with many high-rise buildings, and flower farmers need to make it themselves. If the prepared culture soil is unreasonable and contains less humus, it will inevitably cause the basin soil to harden and the plants will definitely not grow.

The room temperature is too low. When the room temperature is lower than the minimum temperature required for plant growth and development, its normal physiological activities cannot be carried out and its growth will stop. In severe cases, it will cause damage to some tissues and qg of plants, and even death of the whole plant. Therefore, the survival of plants should have a suitable temperature.

4. Irrational watering and insufficient watering affect the normal physiological activities of plants, especially in hot summer, plants will wither due to lack of water, and their growth and development will be affected. Too much water in basin soil or long-term water accumulation will rot plants and lead to slow growth. Therefore, watering should adhere to the principles of "seeing dry and seeing wet" and "watering thoroughly". When the air is dry, it is necessary to spray water on the leaves frequently to increase the air humidity and ensure that the plants are full of water.