What if the leaves of potted dragon spit beads turn yellow

Longtuzhu flower is native to tropical Africa, which can be divided into white calyx dragon bead and red calyx dragon bead. The flower is very beautiful, the color of the flower is in sharp contrast, and the flower shape is as peculiar as the dragon spitting pearl, which is the top grade of potted flowers. When the dragon spits beads in full bloom, the long core sticks out from the blooming red flowers, like the flexible tongue of a dragon. The leaf color is thick green, the calyx is like jade, the Corolla is scarlet, full of poetic feeling. Potted plants decorate the windowsill or balcony with handsome posture and bright novelty. It can also be used for parks or tourist bases to build flower baskets, arches, pavilions and various patterns to add elegance to tourists.

Longtuzhu prefers a warm, moist and sunny semi-shady environment and is not resistant to cold. The optimum temperature for growth is 18-30 ℃ from February to October and 13-16 ℃ from October to February of the following year. The winter temperature is not lower than 8 ℃, and the stems and leaves below 5 ℃ are easy to suffer from freezing injury. The light ones cause defoliation, and the heavy ones cause the tender stems to wither. During the vegetative growth period, the temperature can be higher, the temperature is higher than 30 ℃, as long as the water supply is sufficient, it can still grow normally. On the other hand, the temperature of reproductive growth, that is, the flowering stage, should be lower, about 17 ℃. So, what if the leaves of potted dragon spit beads turn yellow?

The reason why the leaves of the dragon spit beads turn yellow:

1. Lighting

Light is the key factor affecting the growth of dragon spitting beads. In general, in the case of lack of light or too strong light, dragon spit beads will appear the phenomenon of yellow leaves.

In summer, the light is relatively strong, and sunlight exposure is one of the reasons leading to the yellow leaves of Longtuzhu; in winter, the sun is not so strong, but the sunshine time is short, lack of light, and the leaves are easy to turn yellow.

2. Watering

Improper watering will also cause dragon spitting bead leaves yellow how to do dragon spitting bead leaves yellow.

Longtuzhu likes to grow in a moist environment, and if the plant is short of water and the air is dry, it will cause its leaves to turn yellow. Although dragon spitting beads need a moist growth environment, if they are watered too often and there is stagnant water in the soil, it will cause the dragon spitting beads not to blossom, the leaves will turn yellow and even rot the roots.

3. Fertilization

The yellowing of dragon bead leaves caused by fertilization is mainly due to the lack of fertilizer. If the lack of sufficient nutrients, is not conducive to the growth of dragon spit beads, will make it appear leaf yellow.

What if the leaves of dragon spit beads turn yellow?

1. The light should be suitable.

In summer, when the light is relatively strong, you can put the dragon spit beads in a semi-shady place to maintain, need to have bright light, can not be hidden for a long time. Winter needs to ensure enough light, it is best to accept full-time dragon spitting beads leaves yellow how to write in the third year of junior high school.

2. Rational watering

Watering mainly pays attention to the dryness and humidity of dragon spitting beads and keeps it in a more suitable range. Summer can be properly watered, when the air is relatively dry, you can sprinkle some water on the leaves of the dragon spitting beads.

3. Fertilization

When Longtuzhu leaves turn yellow due to lack of fertilizer, you can apply some fertilizer and some ferrous sulfate solution at the same time, the leaves can turn green again.

During the maintenance period, water and fertilizer should be properly controlled, and the amount of nitrogen fertilizer should be controlled after the germinating branches grow to a considerable length. During flowering, the same amount of nitrogen, phosphorus and potassium fertilizer should be used with a concentration of 0.2% and fertilized once a week.

Watering should not be excessive, because too much water will only grow vines but not blossom, or the leaves will yellowing, withering, or even the roots rot and die. In order to make it dormant in winter, it is necessary to stop fertilizing, control water and put it in a sunny place to make it safe to survive the winter. If the leaf yellowing is found during the growing period, it can be combined with topdressing and the application of O. 2% ferrous sulfate solution can change the leaf color from yellow to green. At the same time, the yellowing and black leaves need to be cut off so as not to spread the disease and affect the ornamental.

When turning the basin in spring, the upper branches should be cut short to promote the germination of new techniques. The heart can be picked at the initial stage of growth, so that the plant shape is round, more branched and more flowering. After each flower fade, the flower stem should be cut off in time to make the plant type low and plump.

The air in the cultivation environment should be fresh, and places with medicinal flavor or ethylene will often cause falling flowers, which need to be taken precautions. After flowering, it should not be kept in the dark for too long. If the temperature is above 210C, if the potted flowers are placed in the dark for more than 24 hours, the flowers will fall.

Time: 2019-05-31 Click: