1, the sun is shining
The leaves of hydroponic radish will turn yellow under strong light. Green radish likes cool environment very much. If you put it on the balcony under strong light, it will cause the tip and edge of the flower to wither, and yellow spots will appear on the sunrise side of the leaves.
Solution: first move the green radish to a cool place, then find out which leaves are yellow and remove the yellow leaves. After pulling out, clean the roots and change the water once a week. Finally, after the new leaves grow, the nutrient solution can be supplemented every ten days.
2. Environmental mutation
Many people found that the leaves turned yellow soon after they bought hydroponic green radish, and they didn't know what to do, but in fact, all hydroponic green radish turned yellow soon after they bought it back, and the difference was only serious and slight. But if there are yellow leaves at the bottom, it is actually normal.
Solution: If the leaves turn yellow because of environmental reasons, you really don't have to worry too much. Because after all, people will feel uncomfortable because of the sudden change of environment, not to mention the position. Be sure to change more water, put more medical stones or small stones in the potted plants to prevent the leaves from turning yellow, and then wait.
The water quality is getting worse and worse.
The deterioration of water quality is also one of the reasons why the leaves of hydroponic radish turn yellow, because if there are bacteria in the water at the heel of radish, it will definitely endanger the health of radish and make its leaves turn yellow. If your green radish is cultivated with tap water, it may also be caused by the high content of bleaching powder in the water.
Solution: The solution to the yellowing of hydroponic radish leaves caused by this reason is naturally to change the water, and change the water frequently, once a week. When changing water, see if it causes the root of hydroponic radish to deteriorate. If there is, cut off the diseased roots and add a little nutrient solution to the water.
4. The temperature is too low
If the temperature is too low, the leaves of hydroponic green radish will turn yellow, because green radish prefers high temperature environment and cannot be placed outdoors when it is cold. The temperature of raising radish in winter should not be lower than 10℃. Green radish is very sensitive to temperature. Avoid direct sunlight in summer and don't be too cold in winter.
Solution: In this way, because the leaves turn yellow due to the low temperature, it is best to put the green radish in a slightly warmer environment. It is best to put it on a sunny balcony in winter, and then sprinkle some water on the leaves often to keep it moist.