Most plants need photosynthesis. Of course, some plants don't need photosynthesis to survive. The leaves of these plants are not necessarily green, but the leaves of our common plants are green. What if the leaves of the plants and flowers cultivated by ourselves turn yellow? Since it is a green plant, there will be some common weaknesses in nature. Here is a brief introduction to the common causes that may cause the leaves of green plants to turn yellow.
The common reasons and solutions for the yellow leaves of the plants with yellow leaves of monetary trees: 1. Dry yellow: the yellow with water shortage is different from the yellow with more water. The yellow with water shortage is the withering and drying of the leaf tip or edge. The old leaves fall off from the bottom to the top, but the new leaves grow normally.
Solution: pay attention to fully and thoroughly watering.
2. Lack of fertilizer yellow: the color of the young leaves becomes light, yellow or light green, while the old leaves are more normal or gradually turn from green to yellow.
Solution: if the basin soil is dry, it should be replaced. Usually, thin fertilizer should be applied frequently and some alum water and iron should be poured timely.
3. Lack of light yellow: long time shade environment, leaves can not get enough sunlight, can not form chlorophyll, the whole leaves turn yellow and then fall off.
Solution: timely supplement of light can avoid the disease.
4. Fat yellow: yellow flowers caused by excessive fertilization or excessive concentration, which is manifested in dry brown at the top of new leaves. Generally, the leaves are thick and lusterless, concave and convex are not stretched, and the old leaves are burnt yellow and fall off.
Solution: stop fertilizing immediately and wash part of the fertilizer with a large amount of cleaning seriously.
5. Burning yellow: direct sunlight to some shade loving flowers (such as Chlorophytum, Hosta, etc.), which is easy to cause withering of flower leaf tip and leaf margin, and yellow spots appear in the sunrise part of leaves.
Solution: when the sun is too strong in summer, move the plant to the half shade or shade.
6. Watery yellow: the tender leaves are dark yellow and lusterless, the old leaves have no obvious change, the branches are small, yellow and green, and the new shoots are not long atrophied, indicating excessive watering.
Solution: put the flower out of the basin in a cool and ventilated place, and then put it back into the basin.
The yellow leaves of Cycas Cycas take the rich tree as an example (daily maintenance). The daily maintenance of the rich tree should pay attention to the following four points:
1. Pay attention to the sunshine: rich trees like high temperature, humidity and sunshine, and can not be shaded for a long time. Therefore, the maintenance and management should be placed in a sunny place. When placing old fortune trees, the leaves must face the sun. Otherwise, the whole branches and leaves will be twisted due to the light tendency of the leaves. In addition, every 3 to 5 days, spray water on the leaves with a watering can, which is not only conducive to photosynthesis, but also makes the branches and leaves more beautiful.
2. Attention to watering: watering is an important link in the maintenance management process. If the water quantity is small, the development of branches and leaves will stagnate; if the water quantity is too large, the rotten roots may die; if the water quantity is moderate, the branches and leaves will become large. The first principle of watering is to wet rather than dry, followed by "two more and two less", that is, more watering in summer and high temperature season, less watering in winter; more watering for large and medium-sized plants with vigorous growth, less watering for small plants newly planted into the pot. When the amount of water is too large, it is easy to rot the roots of plants, leading to drooping, tarnishing and even falling off of leaves. At this time, it should be moved to a cool place immediately, and the amount of water should be reduced to the minimum. As long as the basin soil is not dry, spray water on the leaf surface with a watering pot many times a day, stop fertilizing water, and gradually slow down for about 15 to 20 days.
3. Pay attention to fertilization: fat trees are fertilizer loving flowers and trees, and the demand for fertilizer is greater than other common flowers and trees. When the basin is changed every year, the proportion of fertile soil can account for 1 / 3 or even more. The source of fertile soil is extensive, which can be collected from deciduous humus soil of broad-leaved trees, and mixed with a little garden soil, bone dust and bean cake residue. This soil is of high efficiency and easy to obtain, but it should be fully decomposed to avoid burning the leaves yellow. In addition, in the growth period of Facai tree (May to September), every 15 days, the mature liquid fertilizer or mixed flower fertilizer can be applied to promote the deep roots and leafy leaves.
4. Pay attention to temperature and humidity: rich trees have high requirements for temperature and humidity. If the temperature is low or the humidity is missing, the leaves will often fall. If the temperature is serious, the branches will be bare, which will not only hinder the viewing, but also easily cause the plant death. Therefore, when growing, we should keep the temperature above 15 ℃, and often spray water on the branches and leaves to increase the necessary humidity. In the late autumn and winter, we should pay attention to the winter cold prevention and antifreeze management.
Rich tree potted plant