The solution to the yellowing of the leaves of the rich tree

The diseased leaves of the rich tree should be removed and destroyed in time. In the process of rich tree cultivation, maintenance and management should be strengthened, timely watering and fertilization, foliar fertilizer can be sprayed 2 times 3 times in each growing season, such as 0.5% potassium dihydrogen phosphate + 200 times liquid on the plant surface, which can greatly improve the effective composition rate of fertilizer. At the same time, strengthen fertilizer and water management, prevent dehydration and de-fertilization, spray new high-fat membrane. It can prevent bacterial infection, improve the ability to resist natural disasters, improve the intensity of photosynthesis, and protect the growth of grain seedlings. Let's take a look at the causes of yellowing and deal with the symptoms:

First, the leaves of the rich tree are yellow. Due to excessive watering, it is characterized by no obvious change in the old leaves and yellowing of the young leaves, which should be controlled immediately.

Second, the yellowing leaves of the rich tree are dry yellow. Due to lack of water and drought, it is characterized by the yellow of the old leaves from the bottom to the top. If the lack of water is a little longer, the yellow leaves of the whole plant, or even death, should be watered in time.

Third, the leaves of the rich tree are yellow and fat. Caused by excessive fertilization or high concentration; characterized by thick, shiny and uneven young leaves; fertilizer, ploughing and watering should be controlled.

Fourth, the leaves of the rich tree are yellowed and hungry. It is caused by insufficient fertilizer, low fertilization concentration, and long interval of fertilization; it is characterized by yellow young leaves and tender stems. If you do not apply fertilizer in time after seeing this phenomenon, it will cause yellow leaves and even death of the whole plant. For flowers lacking fertilizer, do not apply a large amount of thick fertilizer at one time, so as not to cause root burning.

Fifth, the yellowing leaves of the rich tree are iron-deficient yellow leaves. Due to the great change of soil fertility conditions, the phenomenon of yellow leaves often appears in the greenhouse, which is characterized by obvious young leaves, light old leaves, yellow mesophyll, green veins and a typical network, which can be solved by using ferrous sulfate solution. the method is as follows: 7 parts of cake fertilizer, 5 parts of ferrous sulfate and 200 parts of water.

Notes on yellowing the leaves of the rich tree: moderate watering (don't mess with it, you'll die if you pour it too much), and add potash or compound organic fertilizer. If the daily light time is very short, it is recommended to lengthen it, at least 3 to 4 hours or so. If you are not tired of adding fertilizer and turning over the basin at the same time, the general effect is very good. In addition, the newly grown section will be thinner, and it doesn't matter.