1. Gently pull the rhizosphere with your hand
Flowers usually look at the root to see if it turns black and yellow, and then touch it with your hand to see if it becomes soft. If you gently pull the rhizosphere and find that the epidermis is easy to fall off, it means that it has rotten roots.
2. Sniff
Smell with the nose is mainly the smell of plant roots and water. If there is some odor, it means that it has rotten roots.
1. The content of dissolved oxygen in nutrient solution is low.
There are many reasons for hydroponics root rot, the most common one is the problem of nutrient solution. For example, in the past summer, the content of dissolved oxygen in a hot water flask will become low, which may cause the plant root system to lack oxygen.
Solution: put the hydroponic bottle in a ventilated place at home.
2. The quality of nutrient solution is poor.
If there are substances in the nutrient solution, it may be because there are residual plant debris and residual matrix in the water quality, which will also lead to deterioration of the nutrient solution.
Solution: change water every 2 to 3 days and check the quality of nutrient solution.
3. The nutrient solution submerged the plant roots.
If the nutrient solution submerges all the roots and even the rhizomes of the plant, the roots will rot.
Solution: half the roots of plants are exposed to oxygen and half to nutrient solution.
4. The temperature of nutrient solution is high.
When the temperature of nutrient solution exceeds 30 ℃, the root system is easy to rot.
Solution: shade plants properly.
1. Cut off rotten roots in time
After finding rotten roots, take out the plants and wash the root mucus in clean water. Do not rub it with your hands. Then cut off the rotten roots and let them dry in the air.
2. Change water for water supply culture bottle
We need to wash the water bottle and replace it with new water. If you use the tap water in your home, you need to supply water and ventilate one day in advance to remove chlorine. Grow new roots and use nutrient solution (or not).
1. temperature
The water temperature of hydroponics should be below 18 ℃ to 25 ℃ as far as possible. Flower friends should pay attention to placing plants in a cool and ventilated place
2. oxygen
There should be enough oxygen in the nutrient solution. You can put some metronidazole, vitamin B12 and small charcoal in the water to prevent corrosion and improve the quality of the nutrient solution.
