How to save asparagus from yellowing
1. Scientific watering
Reason: too much watering will make the roots breathe poorly and rot, resulting in yellowing of leaves; of course, inadequate watering will also make asparagus lack of water and leaves yellowing.
Method: need to see dry before watering, each time thoroughly, but no stagnant water.
2. Astigmatism irradiation
Reason: it prefers the semi-overcast environment, if direct sunlight will stimulate it, causing chloroplast damage and yellowing.
Methods: it is necessary to increase the humidity properly and place the plant in the position of astigmatism.
3. Adjust the temperature
Reason: the freezing injury of asparagus will lead to slow metabolism and yellowing leaves.
Method: keep the room temperature at 15-25 ℃ as far as possible, and the plant will gradually come back to life.
4. Appropriate fertilization
Reason: too much fertilization will lead to strong acidity of the soil, damage to the roots of the plant, and too little fertilization will make the nutrients in the soil absorb the helmet, resulting in plant malnutrition.
Methods: selecting the special fertilizer of asparagus and controlling the dosage can apply more nitrogen and potassium fertilizer and promote the growth of branches and leaves.
5. Transfer the source of danger
Cause: poisoning, diseases and insect pests, fire, television radiation and so on will also cause it to yellowing.
Methods: the harm source can be transferred, disinfection and sterilization can be carried out, the yellow leaves can be cut off, and if necessary, all the branches can be cut off, leaving only the base.
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What about the yellow leaves of Cymbidium
Appropriate light: the magnolia is easy to produce yellow leaves after strong light exposure, which needs to be astigmatic or shaded; reduce the amount of water: stagnant water will affect root respiration, need to change the watering method, see dry re-watering; appropriate fertilization: fertilizer is too thick or unfermented will lead to yellow leaves, the use of mature fertilizer or appropriate dilution. If it is aging normally, cut off the yellow leaves.
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What if the orchid leaves turn yellow?
There are four solutions to yellowing blue leaves: if the temperature is too low, you need to raise the temperature to 18-23 ℃, and in winter to 5-10 ℃; if you are exposed to the sun, you need to place it in a place without direct sunlight; if you are watering too much, you need to reduce the watering times and put it in a ventilated and dry place; if you use fertilizer improperly, you need to use fermented rotten cake fertilizer instead.
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