What is the reason why the green apple leaves are as black as charred? How can I fix it?

Green radish is a kind of green plant with high popularity. It can be planted outdoors or maintained indoors. Almost all decoration styles can be perfectly matched, but do you know? There are also many precautions for breeding green radish, otherwise green radish will also send out disease warning, such as the appearance of green radish leaves like charred black symptoms, then what is the reason? How can we remedy this?

1. What is the reason why green radish leaves are black like scorched leaves?

Too much or too little water.

Many people think that in the cultivation of green radish, do not pay too much attention to watering problems, because green radish that drought resistance and water demand is not large, in fact, this "rough" way for the growth of green radish is very unfavorable.

If the green radish is watered too much, the soil will easily harden, so that the permeability of the soil will be greatly reduced, the roots of the green radish will also lack oxygen under the dual pressure of soil hardening and accumulated water, due to insufficient nutrient supply, the green radish leaves will gradually turn yellow and then black.

2, the temperature is too low to appear freezing

Cold damage is the main reason for the blackening of green radish leaves in winter, especially the freezing of roots. If it is in a low temperature state for a long time, green radish leaves will also turn black and dry like being burnt.

3, the air humidity is not enough

This situation often occurs in hot summer and winter indoor long-term open air conditioning heating, relatively speaking, green radish or prefer humid environment, air humidity is not enough, green radish will be too dry and dry black.

4, the temperature is too high or the light is too strong

Green radish is more suitable for cultivation in semi-shady and semi-sunny places, so if the temperature is too high or the light is too strong, it will lead to accelerated transpiration of green radish, rapid water shortage in the plant, resulting in blackening of leaves.

5. Excessive fertilization

In fact, the amount of fertilizer required by green radish is not large, generally only need to supplement some foliar fertilizer, if too much fertilizer will make green radish burn roots and seedlings, and accompanied by yellow and black leaves.

2. How to remedy the blackening of green radish leaves?

If some of the leaves have blackened, the following measures can be taken to remedy them and prevent symptoms from worsening.

1. Trim the blackened leaves

The blackened leaves have been severely depleted of water, and the plant cells have been destroyed, so it is difficult to do "green" treatment. It is best to trim these leaves first to avoid infection.

2. Subsoiling or changing pots

You can first take the green radish plant out of the flowerpot, gently shake off the soil at the root, then deeply loosen the pot soil or directly change the pot, apply a small amount of organic fertilizer in the soil after loosening the soil, transplant the green radish into the flowerpot, and finally spread a layer of gravel on the surface of the plant to increase the permeability of the soil.

Tips: In the process of changing pots, if there are conditions, the roots of green radish can be disinfected, and diluted potassium permanganate solution can be used, which can also prevent pests and diseases to a certain extent.