How to fertilize asparagus?

Asparagus originated in South Africa, distributed in central China, northwest, the Yangtze River Basin and southern parts of China, like warm, humid and semi-shady and ventilated environment, not resistant to cold and drought in winter, avoid direct sunlight in summer, and have very high ornamental plants. It is very suitable to be placed in the living room, study and other places. Let's take a look at how to fertilize asparagus.

How to fertilize asparagus?

Asparagus had better use cake fertilizer, sesame sauce residue and other organic fertilizer to produce fermented retting liquid, which is generally diluted 10-20 times. The growing period of asparagus is from April to June, during this period, light fertilizer should be applied frequently, and thick fertilizer or unmature fertilizer should not be applied. Generally, liquid fertilizer such as thin fully rotten bean cake, chicken manure or human manure should be applied every 10 days, and the ratio of fertilizer to water is about 1 ∶ 15. The soil should be slightly dry before fertilization, which is beneficial for the root system to absorb liquid fertilizer, and pay attention to the liquid fertilizer not to contaminate the branches and leaves. In hot summers and cold winters, there can be little or no application.

How do you water asparagus?

The amount of watering asparagus should be flexibly watered according to different conservation environments, seasons and even potted soil, and should not blindly copy the experience of other flower friends. Watering in winter, spring and autumn should be properly controlled, and the surface of potted soil should be watered again. If you find it difficult to grasp the amount of water, you can also take large and small water alternately, that is, after 3 or 5 times of small water, water can be watered once, so that the basin soil remains moist and does not contain much water. Water should be watered in the morning and evening in summer, and a little more water does not hinder it. In summer, in addition to normal watering, you can often sprinkle water on the ground around the plant and spray branches and leaves with clean water to increase air humidity.

Causes of yellowing of asparagus leaves

1, the light is too strong: asparagus likes semi-shade, avoid strong light, especially in summer to avoid direct sunlight, otherwise it will cause branches and leaves withered and yellow. The flowerpot should be moved to a cool place and water is often sprayed on the branches and leaves to increase air humidity.

2. Improper watering: asparagus likes to be moist but afraid of waterlogging, so the basin soil should be kept dry and wet. Generally watering can make the topsoil moist. More water is easy to rot roots, less water is easy to dry tip, in the dry season should be more to spray water to the leaves.

3. Improper fertilization: if the application of topdressing is too thick or immature fertilizer is applied, it is easy to cause "root burning" and lead to leaf drying and shedding. On the contrary, if the potted soil is barren, the leaves will turn yellow due to lack of nutrients.

4. Poor winter management: asparagus likes warmth and should be sunny in winter. In winter, if you put it in a place where no light can be seen for a long time, poor ventilation or cold, it is easy to cause withered and yellow leaves. Generally, the room temperature should be no less than 12 ℃, and it should be placed near the south window, and watering should be controlled properly.

5. the cause of poisoning: asparagus is afraid of smoke and dust, and if it encounters poisonous gas, the branches and leaves are easy to turn yellow. In addition, if the plant is too large, the flowerpot is too small or damaged by insect pests such as shell insects, it will also cause branches and leaves to turn yellow, so the pot should be changed and controlled in time.

6. causes of diseases and pests: once asparagus is infected with shell insects and other pests, it will also cause withered and yellow branches and leaves, so it should be controlled in time.