What are the cultivation and management techniques of asparagus? What are the planting prospects for 2020?

Asparagus is an important crop in China, which has edible value. Its tender seedlings are edible and delicious. What are the cultivation and management techniques of asparagus? What are the planting prospects for 2020?

I. cultivation and management techniques of asparagus

1. Planting time

Asparagus is usually planted in spring, with new stems growing three or more times a year. Open-air planting is usually done from April to May, from July to August, or from August to September, and in October.

2. Raising seedlings

Because the seeds of asparagus are relatively hard, it is difficult for water to enter. Before planting, it is necessary to soak in warm water of 28 degrees for five days, and the temperature of germination is controlled at 28 degrees. Seedlings are generally raised in small arched sheds and in open fields. In the season of colonization in North China, from mid-March to early September, the seedling stage is about 85 days.

3. Planting

Soak the seeds in 28 degrees water for five days before planting, change the water twice a day, let the seeds fully absorb water, plant depth 3 cm, plant density, plant distance 5 cm, protective gear 18 cm, cover soil 3 cm after planting, tread lightly the next day, let the seeds fully touch the soil, help to preserve soil moisture, can be used to put poison bait in the ditch, prevent underground insects, and water in time after planting.

Generally, seedlings can emerge within half a month after planting. If it is relatively dry during this period, it should be watered in time. If the ground temperature is not high, water can be watered once when the seedlings are 10 centimeters. Weeds should be removed in time to avoid competing with asparagus for water, nutrients and sunshine. Before planting, water should be controlled to refine seedlings in order to improve germination rate and survival rate.

4. Colonization

The seedlings were planted before September and the seedlings raised after April of that year were selected. About ten thousand trees are planted on one mu of land.

Because asparagus prefer the environment of fertile soil and loose soil, it must be ploughed deeply, ditched and planted, row spacing is 1 meter, ditch depth is 30 cm, width is 40 cm, backfill soil is 15 cm, 3 tons of fully mature farm manure is used in one mu, 80 jin ternary compound fertilizer is used in the ditch, and the fertilizer should be evenly stirred and backfilled with 15 cm soil in the ditch. Make the ditch about 7 cm deep, and then water it.

5. Field management

After planting, the stress resistance of asparagus is relatively poor, the absorption capacity is relatively weak, and the root system is relatively small. If drought occurs, the growth will be delayed. If the moisture in the soil is too high, it will cause hypoxia, affect root absorption, and cause root rot. Resulting in poor growth of the whole plant, so timely watering is needed during drought. If there is stagnant water in the field, it should be drained in time.

6. Harvest

When the bottom diameter of asparagus reaches 0.8 cm, it can be harvested. Too much harvest will lead to the death of asparagus, so it is necessary to keep the mother stem during harvest, but the mother has to protect it until the end of asparagus harvest throughout the year.

II. What are the prospects of asparagus in 2020

In recent years, with the improvement of living standards and the improvement of food structure, asparagus also began to appear on the table of Asian people. Asparagus has strong adaptability and is suitable to be planted in many areas of our country. In addition, China is rich in land and labor resources, so asparagus has developed rapidly in China, which has brought great business opportunities to Chinese asparagus.

There are two ways to harvest asparagus. A large base can harvest asparagus by machine, and a small machine can buy it with hundreds of thousands of dollars. The other is to plant asparagus in a small area by manual labor. Nowadays, some developed countries have a good development prospect because of the expensive labor force, the increasing cost, the decreasing planting area and the low labor cost in China.

Although the prospect of asparagus planting is very promising, it also depends on the market acceptance and environmental suitability, so that the cost can be reduced and the benefit can be improved.