When winter falls, many gardening enthusiasts will find that their seasons have quietly changed, and the original green leaves have turned yellow and even begun to fall. This can't help but make people worry, is Yueji sick? Or has it entered a normal life cycle? This article will delve into the phenomenon of yellowing and falling leaves in winter, solve doubts, and let you accompany Yueji through the test of winter more calmly.
Temperature drops trigger physiological adjustmentsCold wintersIn order to protect itself and reduce water evaporation and nutrient consumption, Yueji will actively adjust its metabolic rate, which is manifested as yellowing of leaves and gradual shedding.
Nutrients are refluxed for storage: In winter, the nutrients from the leaves are transferred to the roots and stems to store energy for the next year's growth. Therefore, the yellowing and shedding of leaves is a natural phenomenon of the moon season adapting to survive in winter.
Lighting is diminished: In winter, the sunshine time is short, the light intensity is weakened, and the photosynthesis efficiency of the moon season is reduced, which affects the production of chlorophyll, and the leaves gradually lose their green color and become yellow.
Humidity changes: In winter, the air is dry and soil moisture fluctuates greatly, and if the water is not properly managed, it may cause the leaves to yellow due to lack of water or even fall off early.
Soil problems: Frozen or excessively dry soil will affect the absorption of water and nutrients by the roots of the moon, which will cause the leaves to turn yellow and fall off.
Warmth measuresIn winter, provide appropriate warmth measures for the moon season, such as covering insulation materials and building wind barriers, to avoid damage caused by extreme low temperatures.
Watering moderately: Keep the soil moist but not waterlogged, winter watering should be carried out in a sunny afternoon to prevent freezing and frostbite at night.
Proper fertilization: In winter, the growth slows down, and fertilizer can be appropriately reduced to prevent excessive fertilizer from increasing the burden on plants. At the same time, the application of fertilizers rich in phosphorus and potassium is conducive to enhancing the cold resistance of plants.
Trim managementWinter pruning is carried out in a timely manner to remove diseased and insect branches, dead branches and over-dense branches, reduce water evaporation and nutrient consumption of plants, which is conducive to the smooth wintering of plants.
Although yellow leaves and falling leaves in winter are normal physiological phenomena, the influence of pests and diseases, nutrient deficiencies or other abnormal factors cannot be ruled out. When observing yellow leaves and falling leaves, it is also necessary to pay attention to whether there are any of the following abnormalities:
The leaves are large-scale, rapidly yellowing, and shedding, accompanied by disease spots and insect traces;
Branches withered and died;
The growth of the whole plant is sluggish.
If there are any of the above abnormalities, the cause should be investigated as soon as possible and targeted treatment measures should be taken.
In most cases, the yellowing and falling of leaves in winter is a manifestation of physiological adjustment in accordance with the laws of nature, so there is no need to worry too much. However, it also reminds us that we need to pay attention to and do a good job of winter maintenance and management to ensure that the moon season can still be vigorous after the harsh winter. At the same time, we should be vigilant and eliminate possible pests, diseases, environmental abnormalities and other factors, so that our moon season shows the most beautiful posture in each season.