What if the leaves of the latest hydroponic green apple turn yellow?

Green pineapple is a large evergreen vine of the unicorn leaf genus, which is very easy to raise and live when it comes to water. It is called "the flower of life" because of its tenacious vitality, but the newly bought green radish needs a certain period of adaptation, whether it is hydroponic culture or soil culture. Otherwise, it is easy to have yellowing leaves. Let's take a look at how hydroponic green pineapple leaves turn yellow.

Causes of yellowing of hydroponic green pineapple leaves

1. Sudden change in the environment: generally, the newly bought green apple has an adaptation period of about 1 month to the new environment, and the bottom yellow leaves are normal, but remember that the yellow or dead leaves should not be peeled off directly, but should be cut off from the middle of the petiole. in this way, it can avoid direct stripping to cause too much water loss and increase the wound, resulting in the upper leaves will still be yellow.

2. Light and temperature discomfort: green turnip likes high temperature, humid, semi-overcast environment, can not bear cold, and the overwintering temperature is not lower than 10 ℃. Sensitive to temperature, avoid direct sunlight in summer, leaves are easy to turn yellow and fall off in strong light. It can grow well under the bright scattered light indoors in winter, and has a higher requirement for water during the growth period.

3. Poor water quality: the yellowing of hydroponic green apple leaves may be due to the presence of bacteria in the water. If it is tap water culture, it may be due to the high content of bleach powder in the water. Green pineapple itself is not resistant to low temperature, low temperature for a long time and large water will lead to rotten roots, resulting in insufficient water supply to the roots, and finally the root leaves begin to turn yellow, and the top leaves lose their luster.

What if the leaves of hydroponic green apple turn yellow?

1. Plenty of sunshine: hydroponic green turnips should be placed where the scattered light is sufficient, and water is often sprayed to the leaves during the growth period. Spraying 0.2% potassium dihydrogen phosphate can restore the stripes on the leaf surface. Use a large culture container as much as possible, and oxygen can be added to the water if possible.

2. Suitable temperature: hydroponic green pineapple can survive the winter safely at room temperature above 10 ℃ in the north, and can grow normally at room temperature above 20 ℃. In general, it is not a big problem for families to reach this temperature, we should pay attention to avoid excessive temperature difference, and at the same time, we should also pay attention to the leaves not close to the heating equipment.

3. Rational fertilization: too much fertilizer, too much concentration or lack of fertilizer may cause the leaves of green gong to turn yellow. when too much fertilizer is applied, the leaves are thick and glossy and the leaves do not stretch, and the old leaves are yellow and fall off, so fertilizer can be reduced by washing. When there is a lack of fertilizer, the color of the leaves will become light green or yellow, so fertilizers should be replenished in time.

4. Change water at the right time: hydroponic green pineapple changes water once a week. If you have the conditions to put some Maifan stone or small stone, it will effectively reduce the occurrence of yellow leaves. Rinse the roots well when changing water, and cut off the diseased roots. Don't put too much water, just don't have a root. When raising water, it is recommended to wrap the roots, soil and sawdust of green pineapple with cloth and put them in water.

Culture method of hydroponic green pineapple

1. First of all, the branches and stems of green pineapple should be selected. Healthy and strong branches with aerial roots are good objects for hydroponic culture, so that branches with aerial roots can quickly adapt to the hydroponic environment after being cut off and put into clear water, and they can grow into hydroponic roots in about ten days. Note that the branches and stems put into the water can not have leaves, otherwise the leaves soaked in the water can easily affect the water quality. In addition, potted plants with better plant type can be selected, the soil on the root system can be washed, the excess old root can be cut off and put into clean water, and it will be easy to survive.

2. Pay attention to changing water in the first few days of hydroponics, change the same water as room temperature every two or three days, and change water once a week after the water takes root. Wait until the new leaves grow, you can add nutrient solution every ten days or so, or you can spray some diluted nutrient solution water on the leaves, which can make the leaves green and shiny.

3. The root system of hydroponic green apple should be cleaned and repaired frequently. If the root system is too long, it should be cut short in time to avoid nutrient loss. If the root system is rotten and sticky, it should be cleaned in time, cut off the rotten root, and soaked and disinfected with potassium permanganate solution before restoration. A few days before the restoration of maintenance, the same as at the beginning of hydroponics, change the water every two or three days, and then change the water again ten days after the full recovery of growth.

4. Hydroponic green pineapple needs sufficient scattered light to stretch its leaves and green leaves. It is best to place them where there is enough scattered light at ordinary times. If the environment is too dark, it can be moved to a place with enough scattered light every ten days or so to receive several hours of light, and the glossiness of leaf color can also be maintained.

5, the green pineapple itself likes the warm and humid environment, the dry season should often spray water on the leaves, increase the environmental humidity, but also play a role in cleaning the leaves. Places placed in winter should leave the heating, and pay attention to anti-freezing damage, hydroponic leaves are delicate, very sensitive to temperature changes, so we should pay attention to keep room temperature normal as far as possible, not a large temperature difference.

6. Hydroponic green pineapple is the same as potted green pineapple, hydroponic green pineapple also needs to be pruned frequently, cutting off overlong and disordered branches and stems to maintain a dense and orderly appearance. The roots need to be cleaned at regular intervals, and after the roots grow, they need to be repaired. If the rotten roots are cut off, the green pineapple can absorb nutrients better.