Explain the planting method of asparagus in detail! This kind can be harvested for ten years in a row!

Asparagus, also known as asparagus and asparagus, is a kind of green leafy vegetable with high selenium content, which integrates green organic and natural wild, and is known as the king of vegetables. It has a high planting prospect because of its easy planting and high economic value. What are the planting methods of asparagus?

1. Introduction of asparagus:

1. What is asparagus?

Asparagus is the seedling of asparagus, which is ununearthed, white asparagus is called white asparagus, and the green asparagus is called green asparagus. It usually turns green asparagus after being illuminated by light.

2. Where does asparagus come from?

There are many producing areas of asparagus, which are distributed both at home and abroad, including Germany, the United States, France, Japan, Spain and Peru. China is mainly distributed in Xuzhou, Jiangsu, Heze, Shandong, Shaanxi, Henan, Sichuan, Tianjin and other places, in which Shandong is the main base of asparagus production.

What are the planting methods of asparagus?

1. Sowing:

The main results are as follows: (1) sowing time: March to April in spring and August to September in autumn.

(2) seed treatment: asparagus seed coat is thick and not easy to absorb water, so it is necessary to accelerate germination before sowing. Generally, the seeds are washed and disinfected first, then soaked in 30 degrees warm water for about 3 days, and finally removed and wrapped with towels or gauze and placed in a warm place for about 3 days to germinate. During the germination period, a small amount of water should be sprayed according to the dry and wet degree of the towels to ensure that the seeds are hydrated enough and germinate quickly.

(3) Seedling bed preparation: asparagus likes to grow in loose and breathable soil, so when choosing seedling bed, sandy loam is the best. At the same time, in order to ensure sufficient nutrients in loam, appropriate amount of calcium fertilizer, farm fertilizer or urea can be added to ensure the growth of seedlings.

(4) sowing method: asparagus can be sowed in three ways: sowing, on-demand sowing or strip sowing, in which sowing is about 10 kg per mu, and sowing and strip sowing are about 1 kg per mu. After sowing, the border surface is covered with straw or pine hair, and then watered evenly with a spray can, and seedlings begin to emerge after 15-20 days.

(5) Seedling bed management: after 80% of the seedlings are unearthed, rice straw and other mulch can be removed one after another, and properly watered and fertilized, seedlings can grow.

2. Planting:

(1) site selection: try to choose loam or sandy loam with leeward and sunny direction, low groundwater level and good drainage.

(2) digging ditches: dig a ditch with upper width 40cm, lower width 50cm, deep 50cm left and right, and put topsoil about 10cm in the ditch to promote asparagus root growth.

(3) planting time: spring sowing seedlings from May to June, autumn sowing seedlings from March to April next year.

(4) planting density: about 1200 plants per mu, and the suitable plant distance is 30~35cm.

(5) planting method: cut off a part of the stems and leaves of the selected asparagus seedlings, leave the 20cm, and then pull the roots apart according to the distance between the plants, so that they can extend obliquely around. The soil cover should not be too deep once, and after survival, the soil can be covered twice when ploughing and weeding. When covering the soil, it is appropriate to bury the root disk under the soil 10~15cm as far as possible.

3. Replenish seedlings:

Asparagus planting for one month, there will be sick seedlings, dead seedlings and other phenomena, so in order to improve the survival rate, it is necessary to check and water the supplementary seedlings in time in order to promote its rapid growth.

4. Field management technology:

(1) clear the garden in time: after the asparagus is harvested, the garden should be cleared in time to increase the yield in the second year. When clearing the garden, try to clean up the withered stems and branches and sundries in the field thoroughly, so as to prevent the growth of bacteria and affect the growth of other plants.

(2) Disinfection and disease prevention: after clearing the garden, the soil should be disinfected in time to prevent the occurrence of diseases and insect pests. When disinfection, try to use chlorothalonil and other agents to spray root irrigation, in order to reduce the incidence.

(3) Water and fertilizer management: after disinfection, asparagus should be fertilized and watered, generally using rotten farm manure, and watered immediately after fertilization to promote the dissolution of fertilizer, let the soil absorb quickly and let asparagus survive the winter safely.

(4) loosening soil and weeding: in order to make asparagus survive the winter safely, it is necessary to do a good job in soil moisture conservation and weeding regularly, so that soil and fertilizer can be fully mixed and soil permeability can be improved. When weeding, if you encounter strong weeds, you can use herbicides such as fluorochlorin for chemical weeding.

Third, is the asparagus white or green better?

Both white asparagus and green asparagus are good because they are similar in nutritional value, but white asparagus is a little more expensive in price. The specific differences are as follows:

First, the edible value is different: White asparagus is mostly used to make canned or high-end dishes, while green asparagus is widely used in cooking.

The second difference is that the nutritional value is different: White asparagus has no chlorophyll, but has a high content of mineral elements. Green asparagus contains chlorophyll, carotene, folic acid, protein and vitamins.

Difference 3, price difference: White asparagus is rare, generally used in high-end dishes, so the price will be 3-5 times higher than green asparagus. Green asparagus is more common and is sold in general vegetable markets, so the price is close to the people.

The above is the high-yield planting method of asparagus, according to this method can be harvested for ten years, I hope it will be helpful to you.