We can't live without plants. Plants are our "oxygen factory". They absorb harmful gases and exhale fresh gases. When the leaves of a plant turn yellow, it means that it is sick, so what else can we do? Let's get to know about it!
The causes of plant leaf yellowing: 1. Iron deficiency causes plant leaf yellowing: woody flowers in greenhouse, due to the great changes of soil fertility conditions, yellow leaf phenomenon often occurs, characterized by obvious young leaves, light old leaves, yellow flesh, green veins, and forming a typical network.
Solution: ferrous sulfate solution can be used to solve the problem, the method is: cake fertilizer 7 parts, ferrous sulfate 5 parts, water 200 parts with double liquid pouring.
2. Excessive watering leads to yellowing of plant leaves (yellowing): 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 withered and not long, which indicates that excessive watering
Solution: the water should be controlled immediately, and the flower pot should be placed in a ventilated and cool self blowing dry soil mass before being put back into the pot.
3. Long term water shortage leads to yellowing of plant leaves (dry yellowing): the old leaves turn yellow from bottom to top. If the water shortage lasts a little longer, the whole plant will turn yellow or even die.
Solution: water immediately.
4. Exposure to the sun leads to yellowing of plant leaves: strong sunlight directly on some shade loving flowers (such as Chlorophytum, Hosta, etc.), which is easy to cause withering of flower leaf tips and leaf edges, and yellow spots on the Chaoyang part of the leaves.
Solution: move to the shade.
5. The lack of sunlight leads to the yellowing of plant leaves (lack of light yellow): the leaves cannot get enough sunlight and form chlorophyll when they are exposed to shade for a long time, and the whole plant leaves turn yellow and then fall off.
Solution: add light to avoid the disease.
6. Excessive fertilization leads to yellowing of leaves (yellowing): young leaves are thick, glossy and uneven.
The solution is to control fertilizer, plough and water.
7. The long-term lack of fertilizer leads to the yellowing of leaves (lack of fertilizer yellow): the young leaves and tender stems turn yellow first. If fertilizer is not applied in time after this phenomenon, the whole plant will turn yellow and even die.
Solution: for the lack of fertilizer flowers, avoid a large amount of thick fertilizer, so as not to cause root burning!
Why plants turn yellow expand knowledge - uses of plants: thousands of plant species are planted to beautify the environment, provide shade, adjust temperature, reduce wind speed, reduce noise, provide privacy and prevent soil erosion. People will place cut flowers, dried flowers and indoor potted plants indoors, and set lawns, shade trees, ornamental trees, shrubs, vines, perennial herbs and flower beds outdoors. The images of flowers and plants are usually used in art, architecture, temperament, language, photography, textiles, coins, stamps, flags and armbands.
The art types of living plants include green carving, bonsai, flower arrangement and tree wall. Ornamental plants sometimes influence history, such as tulip mania. Plants are the basis of billions of dollars of tourism industry every year, including travel to botanical gardens, historical parks, national principalities, tulip fields, rainforests and forests with colorful autumn leaves.