Plants in our daily life is very common, often seen in the leaves of potted plants yellow, which is why? That today we Shandong green seedlings small series to introduce you to:
Potted plants should be regular watering, adhere to the principle of "see dry see wet, irrigate irrigate through. As for watering potted plants too much, easy to cause the basin soil for water. The roots of asphyxia decay, does not absorb moisture, resulting in potted plants in the yellow pages or even fall off. That leaves should stop watering, loose soil, let it dry and ventilated.
Improper fertilization: for a long time in the basin of peanut, long-term no fertilization or fertilizer is insufficient, cause leaf yellowing phenomenon; Shi concentrated fertilizer too many flowers can not absorb the root burn, cannot absorb all the water will also cause the yellow leaves fall, a week in summer Shi a thin fat, never apply more concentrated fertilizer. If too much fertilizer, can be more water diluted and rushed to the soil fertilizer. Lack of fertilizer can result in pot soil compaction, flower and leaf yellow, thin, thin, slender yellow and tender branches. Immediately fertilization, within a week of work, regular fertilization, the normal growth of flowers, flowers blooming.
Water shortage: flowers, such as water shortage, should immediately go to the water spray, to speed up the absorption of plants to water, and then to the pot of water, then pay attention to less water so that soil moisture can be, not to water.
Temperature is too high: in the summer high temperature season, likes the cool resistant female flowers in light and high temperature, according to the strength, extremely easy to cause leaf tip or leaf edges scorched, encounter this kind of to timely transfer to sunshading and ventilating place, water cooling, increase humidity favorable flower growth.
Flower bowl: due to spend a large root system, fertilizer, small basin can not meet the flower grows need, when the old leaves often dry yellow dull, leaves thin, yellow, it is necessary to change the appropriate basin, soil to add 3% humus soil and the flowers grew normally.
Branches and leaves a secret: the growth of branches and leaves, lush and not long after pruning, Chido Mieyokoteru insufficient, appear yellow leaf shedding phenomenon, should strengthen pruning ventilate the cella and proper fertilization.
Insufficient light: like sun flowers, such as rose, pomegranate long placed in the light too weak, it will make the plants gradually weak, thin and yellow leaves, flowers or less flowering.
Chill: because the spring flowers out of the room early by the cold, or the autumn cold, freezing injury and yellow leaves, burglary, insulation and advance cold acclimation of potted flowers flowers.
Plant diseases and insect pests: by mosaic virus infection after foliar show more yellow green inlaid plaques by fungus pathogen infection caused by leaf spot disease, easy to make the blade local necrosis, should pay attention to the prevention of disease and spraying in time and give adequate light and ventilation. High temperature in summer season is easy to produce the pest, the spraying prevention, aphid, red spider, on the back of leaf and absorb nutrients and moisture, make the leaf withered and yellow or even whole plant Chlorosis on the leaves off, timely pest control can be restored.
Other: flower in the toxicity of toxic gases in the atmosphere, or high temperature suddenly poured cold water will cause physiological drought, spraying high concentration of pesticides to control pests and diseases will cause tip or foliar local scorch, even the death of the whole plant. Therefore, in order to pay attention to the exclusion of air pollution source, or anti pollution plant planting, rational use of pesticides, hot summer before 10 o'clock in the morning afternoon 4 when watering is appropriate.