Asparagus is a perennial green herbaceous flower, which is called yunzhu, Songshan grass and Yunzhushan grass in some places. Although asparagus has the characteristics of evergreen for many years, if it is not properly maintained, it will often appear the symptoms of yellowing of branches and leaves, which will affect the ornamental effect. If asparagus is left by the fire for a long time, not only will the asparagus leaves turn yellow and fall off, but the stems will also dry up. Asparagus will gradually dry up when it is placed next to the TV. After a long exposure to strong light, plants first stagnate, and then their leaves turn yellow. Ignoring watering, or only watering the surface pot soil, the roots did not absorb enough water, and the stems and leaves slowly turned yellow. Too much watering leads to root rot, and then the stems and leaves wither.

Improper fertilization, too high concentration or undecomposed fertilizer will easily dry up when using the seedling burning machine, and it will lose fertilizer and turn yellow if it is not topdressing for a long time.

Long-term storage in a cool environment will weaken and yellow plants.

Suffering from freezing damage, the branches and leaves turn yellow.

Solution:

Adjust fertilizer and water. During the growth of asparagus, there is no need to apply fertilizer too frequently. Generally, it is only suitable for topdressing in spring and autumn, and dilute decomposed manure or low-concentration compound fertilizer solution, or rice washing water and bean juice water are applied every 18 ~ 15 days. High temperature in summer and low temperature in winter are not suitable for fertilization. Fertilization should be controlled not too much or too late. Water without watering. When it is dry, water it thoroughly at one time, and don't leave waterlogging on the basin surface. Dust on the leaf surface should be sprayed regularly to remove dust.

Put it away. Asparagus likes semi-cloudy, semi-sunny and slightly wet environments. First, avoid exposure to the sun, but where you can see the sun; Second, you should be able to feel the air circulation; Third, stay away from stoves and televisions; Fourth, keep warm, and the room temperature should not be lower than 5℃. If the room temperature is between 0℃ and 4℃, cover it with plastic to keep out the cold.

Asparagus tends to clump in time for plastic surgery. First, when changing pots and covering soil, it is necessary to trim old and residual fibrous roots and redundant stems and leaves to avoid excessive consumption of nutrients, so as to support roots and protect leaves; The second is to cut off the partially yellow leaves; The third is to cut off the stems and leaves that are yellow at the same time.