How can asparagus grow well?

Asparagus, also known as Phyllostachys pubescens, is a perennial evergreen vine of Liliaceae. Native to southern Africa. Asparagus prefers a warm, moist, semi-shady environment. Cloth is cold-resistant and not drought-resistant. Like fertile, loose, well-drained sandy loam. Asparagus likes to be warm and sunny in winter. If you put it in a place where no light can be seen for a long time in winter, poor ventilation or cold will easily lead to withered and yellow branches and leaves. At this time, it can be transferred to a warm place with sunshine, and the room temperature can be maintained between 12 ℃ and 18 ℃. Proper control of watering can gradually return to normal. The details are as follows:

Growth habits of asparagus

Asparagus is not cold-resistant, drought-resistant, like warmth, semi-shady environment, avoid frost. Asparagus has strict requirements for basin soil, which is loose, fertile, good drainage and good air permeability, and the basin soil had better be neutral. Rotten leaf soil, sand and mature fertilizer can be used. Asparagus is not cold-resistant and afraid of heat, and the suitable temperature for growth is between 15 and 25 ℃. That is, it can not stand direct light, but also can not stay in the shade for too long. Watering should not be too much, grasp the principle of watering dry and wet. Fertilizer can be used once a month to meet the growth needs. Raw asparagus in 2012 has the most ornamental value. Three-year-old asparagus begins to grow branches, and a bracket should be set up for it to climb. If you do not want to set up a bracket, you can also cut off the climbing branches to the root. Asparagus is not resistant to cold, and the overwintering temperature is 10 ℃.

Culture methods of asparagus

Seedlings are usually raised from 5m to October. Before sowing, the seeds are soaked in warm water for 20 hours. After soaking, the seeds are mixed with plant ash. The seeds are covered with soil about 1 cm, and the seeds germinate with light. Seedlings emerge in 25 days under shading conditions, and the seedlings are planted in a small basin after two separate seedlings. Tolerance to semi-overcast, like a well-ventilated environment, lax requirements on the soil, less fertilization, less watering, so as to maintain the upright and short shape as far as possible.

Propagation methods of asparagus

Asparagus can be propagated by sowing or split-plant method, generally using sowing method to propagate.

1. Sowing and propagation: the mother plant is usually planted in the interior of the greenhouse, and the seeds of asparagus mature from December to April of the following year. Because asparagus seeds have a short life span, they should be sowed or stored in sand in time after seed collection. Remove the seed coat when sowing and sow the seeds in a shallow pot or on demand in a flowerpot with an inner diameter of 7cm. If the seeds are sown in a shallow basin, the seeds are sown with the row spacing of 2cm. The seeds are pressed into the soil, covered with 2-3mm, covered with glass and shaded. The temperature was kept at about 20 ℃ and germinated in about 20-30 days.

2. Split propagation: 4-5-year-old plants can be divided in early spring. You should operate carefully and do as little damage as possible. After slowing down the seedlings, we should strengthen the management of fertilizer and water to promote the emergence of new buds. The propagation coefficient of this method is low, and the shape of the new plant is irregular after ramet, so it is rarely used.