"Indoor foliage plants" what are the breeding methods and points for attention of asparagus chinensis? What if the leaves turn yellow?

Asparagus, also known as Zhu banana, dragon blood tree, mountain and kelp, dragon beard iron, is a perennial evergreen shrub or tree of the genus Liliaceae. It is a kind of indoor foliage plant introduced into our country in recent years, which is often dwarfed and arranged indoors. What are the breeding methods and matters needing attention of asparagus? What if the leaves turn yellow?

Growth habits of asparagus chinensis

Asparagus is naturally fond of warm and humid environment, and the closer it is to the tropical environment, the more favorable it is for its growth. Its demand for light is also high, and it needs sufficient light, so it is suitable for planting outdoors. Although asparagus is a tree, it has gradually become a form of dwarf shrub after it was introduced into China in recent years, and it has the function of purifying air and reflecting elegance and beauty indoors.

The culture method of asparagus (basic knowledge):

The main results are as follows: 1. The best propagation time is from February to March each year.

2. The best growth soil: asparagus prefers loose and fertile soil and substrate. If soil culture is used, garden soil, rotten leaf soil, rotten organic fertilizer and river sand can be mixed in the ratio of 5 to 1, which can provide basic nutrients for plant growth.

3. Growth humidity requirements: asparagus likes a warm and humid environment, but it has little effect on dryness.

4. The optimum growth temperature of asparagus is 20-28 ℃. If the temperature is higher than 32 ℃ in summer or lower than 15 ℃ in winter, it will be dormant or semi-dormant.

5, the best growth light: asparagus is a light-loving plant, the summer light is too strong, it is necessary to shade properly, the general illumination is 40-50%.

Matters needing attention in the cultivation of asparagus

The three seasons of spring, summer and autumn are the exuberant season for the growth of dragon blood tree. during this period, growers must fully meet its needs for water, nutrients and temperature to make it grow healthily.

1. Soil matrix: asparagus prefers loose and fertile soil and substrate. If soil culture is used, garden soil, rotten leaf soil, rotten organic fertilizer and river sand can be mixed in the ratio of 5 to 1, which can provide basic nutrients for plant growth. It has high requirements for the looseness of the soil, so it is necessary to turn the soil and loosen the soil in time, usually once a month, to ensure the good permeability of the soil, especially not to let the soil accumulate water. The potted asparagus tree turns the pot once in April to satisfy its year-round nutrients. If you use no-map cultivation, in terms of beauty and plant needs, choose Yixing purple sand basin or Jingdezhen porcelain pottery basin. Because there is no soil, the matrix needs to provide plant nutrients, and the matrix can be made of vermiculite. A mixture of perlite and peat soil. There is no soil in this method, so there is no need to turn the soil. The complicated operation steps such as turning basin and changing soil can not be considered all the year round.

2. Temperature and light: asparagus likes direct sunlight, but it can also withstand dark conditions. Therefore, many aquaculture lovers put it in darker rooms such as the study. Although it is shade-resistant, the lack of light for a long time will lead to the lightening of its leaves, so it is best to let it receive direct sunlight from time to time, or it can be placed on the edge of the balcony. But in the hot summer, the direct sunlight is too hot, so it is necessary to shade it and accept 40% 50% of it, otherwise it will burn the leaves. The optimum growth temperature of asparagus is between 20 and 28 degrees. Therefore, May to July is the most exuberant season for its growth, and the environmental conditions are very suitable for its growth. In winter, asparagus is not cold-resistant, and after the temperature is as low as 15 degrees Celsius, it will enter a dormant state. Potted asparagus should be moved indoors in time to prevent it from being harmed by early frost.

3. Pest control: asparagus trees are easily affected by red spiders and belong to mites. Red spiders appear in clusters and gather in a web behind the leaves of asparagus to feed on the sap of the plant. Red spiders will cause the leaves of asparagus to fade, causing macula on its surface, even shrinking and withering, and finally falling off. Red spiders can be caught by hand or sprayed with chemicals. Red spiders are usually hidden on the back of one by one, and can be made from 20% trichloropropanol emulsion mixed with 800 times more water, which can effectively kill adults and eggs. It can also be sprayed with 50% dichlorvos emulsion mixed with about 1000-1500 water, all of which have excellent results.

The method of propagation of asparagus:

There are generally two kinds, namely, high voltage and cutter. Of course, if it is in the tropics, the seeds can be cultivated and sown directly. However, considering the domestic environment, seeds are rarely cultivated. Therefore, this method is not suitable for domestic reproduction.

Analysis and treatment of common causes of yellowing of asparagus leaves:

1. Overwatering

The watering principle of asparagus is to see dry and wet, and then water it after it is dry. Especially in winter, the amount of water should be reduced, and when watering, it should not be watered into the heart of the tree.

2. The direct sunlight is too strong

Asparagus likes warmth, fear of cold, light and fear of hot sun exposure. If the leaves are yellow and their shins are soft and cannot stand upright, look at whether they are rotten, and if they rot, cut them off and clean them up in time. Then turn over the soil, pour the right amount of water, put the plant in a ventilated and cool place for a period of time, it will naturally grow new buds.

3. Insect pests

The main pest of asparagus tree is red spider, and there are dense small yellow spots and small yellow spots on the surface of the leaves. Spiders often hide in branches, the back of leaves or dense places, pull the net hidden, manual capture is relatively easy. If it is treated with chemicals, 20% trichloroacarol emulsion can be used to spray the solution by adding 8-1000 times of water.

The function of asparagus

The family ornamental function of asparagus chinensis

Asparagus belongs to foliage plants. The photosynthesis and plant characteristics of its leaves can release oxygen and absorb indoor toxic gases such as carbon dioxide and carbon monoxide, which can purify the air. In the role of family viewing, the plant of asparagus is regular, the shape of leaves is more colorful, and its adaptability to sunlight is very strong, so it can be used as a long-term ornamental plant in the room with poor light.

The fengshui effect of asparagus

In general, asparagus can be planted at the back of the house, in fengshui, it can increase helpless official luck and wealth, let people soar. At the same time, it can also make the owner's family thrive and make people live a long and healthy life. The planted dragon beard tree is easy to grow and breed, and the number of dragon beard on its plant represents wealth. The more it is, the richer it is, and the more prosperous it is.