How to grow asparagus and precautions

Speaking of Tianmen Winter, I believe everyone is very familiar with it, and it is very common in our lives. Tianmen looks inconspicuous, but the efficacy is great, has a very high medicinal value, has a good effect on the treatment of some diseases, and has been widely planted. So how to plant Tianmen winter? Next, let's discuss the breeding skills of Tianmen winter.

How to plant Tianmen winter

1. Select the soil with good drainage performance and good permeability, flatten it before sowing, remove large rocks, weeds and other impurities, and carry out sterilization treatment.

2. Sow seeds in a horizontal trench with a depth of 7 cm at a distance of about 22 cm. The seed depth is 6 cm, and the adjacent pits are 2 or 3 cm apart. If you are not sure about the amount of seeds, you can consider it according to the amount of 20 jin per mu.

3. After planting, the seeds should be sprayed with water, covered with base fertilizer or plant ash, and then covered with fine soil until it is flush with the ditch surface, and the top should be covered with a straw mat to reduce the loss of water and temperature.

4. Control the temperature at about 18 degrees, watch the dry and wet condition of the soil, and replenish water in time. The seeds will grow seedlings in about 20 days. After the seedlings are visible to the naked eye, the straw mats will be removed for later management.

Planting methods and matters needing attention of Tianmen winter

1. Soil requirements

Like the warm and humid environment, like the sun, resistant to semi-shade, afraid of direct light. It is advisable to loosen the sandy loam with fertile soil and good drainage. In the north, the cultivation of Tianmen winter is more than the middle and late April to change the basin. When changing the basin, cut off some of the old roots and add the culture soil mixed with 4 parts of rotten leaf soil, 4 parts of garden soil and 2 parts of river SARS.

2. Watering method

Water thoroughly every 2-3 days in spring. At this time, if the air is dry, it is necessary to spray water on the plant every day to sprinkle water on the ground around the maintenance site; in summer, spray water every 2-3 days to increase air humidity. Tianmen winter is fleshy root, afraid of waterlogging, usually watering should not be too much; water permeable once a day in summer.

3. Fertilization method

The period of vigorous growth is from May to September, and rotten cake fertilizer and water can be applied every 15 to 20 days. If the indoor light is insufficient, it should be kept outdoors for a period of time in spring and autumn; in winter, where the indoor light is sufficient, the room temperature should be kept above 5 ℃, water should be watered every 10 to 15 days, and branches and leaves should be sprayed and washed every 3 to 5 days.

4. Methods of reproduction

Tianmen winter reproduction can be combined with the change of pot in spring, the mother plant should be more than 3 years old, when dividing, the mother plant should be taken out of the pot, according to the size of the plant cluster. Several pots were planted, watered thoroughly and placed in the semi-shade for 15 days. the seeds matured at the end of December, soaked in water after harvest, rubbed the peel and dried in the sun. Spring sowing, the indoor temperature should not be lower than 15 ℃, it can germinate in a month, and the seedlings will be planted separately when they are about 4ml 5cm long, with several plants in each pot.

What if the stems and leaves turn yellow in Tianmen winter?

1. Lack of nutrition

The yellowing of leaves in Tianmen may be caused by lack of nutrition. when planting Tianmeng in a pot, the roots in the flowerpot are numerous and entangled after the growth and development of Tianmeng, which will lead to insufficient nutrients in the pot. at this time, we have to split or change the pot, ramet or change the pot, properly apply some thin fertilizer, the leaves will gradually turn green.

2. Improper fertilization

If some unmature organic fertilizer is applied during the growing period of Tianmeng, it will easily cause the phenomenon of "burning roots", which will lead to a large number of yellow leaves and withered branches, so when we fertilize Tianmeng, we must apply rotten liquid fertilizer, apply a small amount of fertilizer each time, and apply more times to ensure that asparagus fertilizer is sufficient and well absorbed.

3. Excessive illumination

If the young plants are directly placed in the strong sun, it is very easy to cause the stems and leaves of Tianmeng to turn yellow. When we plant Tianmeng, we should be careful not to let the strong sunlight shine on the plant. In summer, we should build a shelter to prevent the sun from being exposed to the sun. Tianmeng is more suitable for growing in a semi-overcast place.

Pest control of Tianmen winter

1. Red spider

Red spider is harmful to leaves from May to June. Control methods: ① should pay attention to clearing the garden in winter and burn or burn the dead branches and leaves; ② sprays 0.2-0.3 pomethyl sulphur mixture or sprays with 25% insecticidal amidine water agent 500-1000 times, once a week, 2-3 times continuously.

2. Aphids

Aphids can damage tender vines and bud cores, causing the whole vine to shrink. In the early stage of aphid damage, 40% dimethoate 1000-1500 times dilution or 1000-1500 times dilution can be sprayed. For plants with serious insect pests, all the vines can be cut off and fertilized, and new sprouts can be sent out in about 20 days.

Through the above content, I believe you have a certain understanding of the planting technology of Tianmen winter. In fact, Tianmen winter also has a high ornamental value, there are many people like to raise asparagus potted plants at home, to decorate the room!