What are the breeding methods and precautions of asparagus?

Asparagus, also known as Yunpiansong, Spiny Asparagus, yunzhu, etc. It is a perennial plant of Asparagaceae. Originated in South Africa, it is distributed in the central, northwest, Yangtze River valley and south of China. It can reach several meters high. It can be placed in the living room and study room to purify the air and add a scholarly atmosphere. Let's take a look at the cultivation methods and precautions of asparagus!

Growth habit of asparagus

Asparagus likes warm, humid and semi-cloudy ventilation environment. You can't stand cold and drought in winter, you can't water too much, and your roots will rot. In summer, direct sunlight should be avoided. It is better to use loose, fertile sandy loam with good drainage and rich humus. It is advisable to keep the room temperature at 12 ~ 18℃, and ventilate and dissipate heat when it exceeds 20℃. The suitable growth temperature is 15 ~ 25℃, and the wintering temperature is 5℃.

Propagation method of asparagus

Most asparagus plants are propagated by ramets. Asparagus plants that grow for 3-5 years are dense and can be propagated by dividing plants. Choose ramets when changing pots in spring. Use a sharp knife to divide the clustered stems and roots into 2-3 clusters, so that each cluster contains 3-5 buds, and then plant them in pots respectively. When dividing plants, the root system should be damaged as little as possible. Water the plants after splitting, put them in a semi-shady place, and pay attention to moisturizing and shading. Water should be properly controlled in the future, otherwise it will easily cause yellow leaves.

Cultivation method of asparagus

1. Pot soil: Pot soil for asparagus cultivation should be fertile sandy loam, warm and humid, with many rotten branches and good drainage. Generally, it can be prepared according to the ratio of 4 parts of garden soil, 2 parts of humus soil, 2 parts of compost soil and sand 1 part, and the soil should be changed and fertilized regularly. What if excessive fertilization caused it? Water the roots? It is necessary to pour pots to remove fertilizer, water clods with clear water, and then replace them with new soil for breeding.

2, watering: watering is the focus of asparagus cultivation, too much watering, pot soil is too wet, easy to cause root rot, too little watering, will lead to brown leaves. Therefore, in the process of watering, it is necessary to look at the weather, growth and the dryness and wetness of the basin soil, so as not to water it, but to water it thoroughly. When it is hot and dry, it can be humidified and cooled by spraying water on the leaves, and watered less in winter.

3. Fertilization: Asparagus is not good at fertilization, but it cannot be short of fertilizer. Due to the limitation of potted soil, asparagus cultivation must be supplemented with nutrients in time to meet the growth requirements. In the process of asparagus fertilization, it is necessary to make more fertilizer and less fertilizer, and not to apply thick fertilizer, otherwise it will cause yellow leaves. Generally, you can choose to apply decomposed dilute liquid fertilizer once a month. After the plants grow and take shape, the reduction of fertilizer application can be properly controlled. Topdressing 1 ~ 2 times of thin fertilizer containing ammonia and phosphorus every month during the growth period can promote the vigorous growth of leaves, and other liquid fertilizers can also be used. It should be noted that it is not advisable to apply too much fertilizer at flowering stage, and liquid fertilizer should be applied twice in May-June and September-10 respectively.

4. Lighting: Asparagus planting should not be exposed to the hot sun. In hot season, it should be placed in a cool and ventilated place. At the same time, asparagus is afraid of both wind and rain during flowering, so it should be well ventilated. When the weather is fine, you can put it outdoors to receive the sunshine. The temperature of potted asparagus in winter should be kept above 5℃ to avoid freezing.

5. Placement: Asparagus likes a clean and ventilated environment. If stimulated by harmful gases such as smoke, gas and pesticides, the leaves will turn yellow, curl and even die. Therefore, asparagus should be placed in a clean and well-ventilated environment, away from decorative materials such as marble that release mercury gas.

Matters needing attention in asparagus cultivation

1. Asparagus is not cold-tolerant, so it can't overwinter outdoors in the north. When the temperature drops, it should be moved indoors in time, and the growth environment above 15 degrees Celsius should be provided in winter.

2, it is not advisable to water frequently, and often spray water on the leaves. Foliar spraying 1 ~ 2 times in summer and once every 3 ~ 4 days in winter while keeping the soil moist.

3. Keep the basin soil half dry and half wet. Too dry potted soil will cause asparagus leaves to turn yellow or branches to burn.

4. Don't water the flowers directly with tap water. Leave them 1 2 days in advance, and the water temperature should not be too cold.

5, don't apply raw fertilizer (someone raises asparagus, directly pour the boy's urine on the root of asparagus, and the root is burned to death), and the raw fertilizer should be decomposed.

6. Apply thin fertilizer once a week in spring and autumn, not once every half month in winter. It is best to use compound flower fertilizer.

7. Asparagus doesn't like smoke. If you use a coal stove or charcoal fire to keep warm in winter, you should have proper ventilation every day.

8. Asparagus should be kept away from marble decorative items. Asparagus has a strong ability to absorb gaseous mercury. It should be noted that asparagus can also harm itself by absorbing mercury gas. Therefore, when placing asparagus, stay away from decorative materials that release mercury gas.

9. Asparagus should be pruned in time. Too dense branches will affect ventilation, lighting and appreciation, and should be pruned in time. If the evil roots multiply too much, divide the pots in time.

10, binding asparagus can make asparagus posture more beautiful, but it is not suitable for ropes that are too thick or have too much color difference. Bamboo strips should not be too thick, otherwise the slender asparagus will be set off too weakly.