What is the latest yellow leaf of asparagus?

Asparagus is a common potted crop, which is highly ornamental and is welcomed by many people. At present, asparagus is basically cultivated in all parts of our country. However, the cultivation of asparagus is not as simple as imagined. Many problems are often encountered in the growth of asparagus, among which the yellowing of leaves is one of them. So how do the leaves of asparagus turn yellow? Let's take a look at it with the editor.

1. Improper fertilization

The demand for fertilizer in the growth of asparagus is still relatively large, and it is necessary to have sufficient nutrition to ensure the growth. But if the fertilizer is not too much, if the fertilizer is too much, then the plant can not absorb all of it. It will not only lead to a waste of nutrition, but also easily burn out the roots by the heat generated by fertilizer, resulting in the phenomenon of yellow leaves. Therefore, we should pay attention to control the amount of fertilizer application, and if there is too much fertilizer, we should water and flush fertilizer in time. When it is serious, change the soil and change the pot and replant, and then return to normal and apply fertilizer on the principle of more and less.

2. Watering reason

Like fertilization, the demand for water in the growth of asparagus is relatively large. But when we are watering, we should also pay attention to the amount of water. If it is watered too much or too frequently, stagnant water in the soil will cause the roots of asparagus to rot, resulting in yellow leaves. At this time, we should stop watering in time, loosen the soil and drain water, and then provide a ventilated environment for it to reduce humidity. When watering, wait until the soil is completely dry before watering, in order to see dry and wet as the principle, and should be careful not to let the heart leaves touch the water to prevent the heart leaves from rotting.

3. Temperature discomfort

Temperature is critical to the growth of asparagus, a crop that likes to grow in a warm environment. If the temperature is too low, it is easy to cause leaf freezing damage, especially in winter. After the leaves are frozen, there will be yellow leaves and other bad phenomena, so we must pay attention to control the growth temperature of asparagus in our daily maintenance. It is very important to keep the temperature above 10 degrees, especially in winter. However, the temperature should not be too high to prevent water from evaporating too quickly, resulting in the lack of water in the leaves and the drying up of yellow leaves.

4. Lack of light

Light is also one of the main reasons for the yellowing of asparagus leaves. In addition to temperature, asparagus is also a kind of light-loving plant. Asparagus has a great demand for light, if the growth of asparagus does not have enough light and grows in a dark environment for a long time. Then the leaves will appear all kinds of bad phenomena such as yellow leaves because they can not synthesize chlorophyll normally, photosynthesis is blocked and so on. Therefore, we should pay attention to meet the lighting needs of asparagus and enhance the photosynthetic capacity of asparagus. However, the light should not be too strong, in the summer strong light environment, we should pay attention to do a good job of shading, avoid excessive light leading to leaf burns, to ensure the normal growth of asparagus orchid.

The above is a brief introduction to how the leaves of asparagus turn yellow. That's all for today's introduction. This article is for reference only. I hope it can be helpful to everyone.