Method: When it is dry, pour it thoroughly every time, but don't accumulate water.
2. Causes of astigmatism: It prefers semi-cloudy environment. If the sun shines directly, it will stimulate it, causing chloroplasts to be damaged and yellow.
Methods: Increase the humidity appropriately and place the plants in the position of astigmatism.
3, adjust the temperature reason: asparagus freezing injury will lead to slow metabolism, yellow leaves.
Methods: Keep the room temperature at 15-25℃ as far as possible, and the plants will gradually live.
4. Reasons for rational fertilization: Too much fertilization will lead to excessive acidity in the soil and damage the roots of plants. Too little fertilization will make the nutrients in the soil absorb the pot helmet, leading to plant malnutrition.
Methods: Select special fertilizer for asparagus, control the dosage and apply more nitrogen and potassium fertilizer to promote the growth of branches and leaves.
5. Reasons for transferring hazard sources: poisoning, pests and diseases, fire, TV radiation, etc. It will also cause it to turn yellow.
Methods: the source of the hazard can be transferred, disinfected and sterilized, and the yellow leaves were cut off. If necessary, all branches can be cut off, leaving only the base.