[asparagus planting method] what is the asparagus planting method?

Asparagus enjoys the laudatory name of "king of vegetables" in the international market. Asparagus is rich in a variety of amino acids, proteins and vitamins, which are higher than those in general fruits and vegetables, especially asparagine and trace elements selenium, molybdenum, chromium and manganese in asparagus. Asparagus has the effect of regulating body metabolism and improving body immunity, in the prevention and treatment of hypertension, heart disease, leukemia, blood cancer, edema, cystitis and so on. It has strong inhibitory effect and pharmacological effect. According to the International Association of Cancer patients, asparagus can normalize cell growth and prevent the spread of cancer cells. Adjuvant treatment of tumor diseases should be taken every day in order to be effective. Asparagus has become one of the health vegetables, which is an important reason why it can be planted in a large area in the world and sell well. Asparagus has a delicious and fragrant flavor, and dietary fiber is soft and delicious, which can increase appetite and help digestion. The famous asparagus dishes are "fresh mushroom dragon beard", "vegetarian fried asparagus", "shrimp asparagus", "asparagus pork slices", "asparagus fried eggs", "sweet and sour asparagus slices", "asparagus dried scallops" and "asparagus abalone soup".

According to the Municipal vegetable Office, asparagus cultivation in our city has developed rapidly in recent years. The city already has an asparagus base of nearly 1000 mu. The most important thing for asparagus cultivation is to manage it well. Keep warm in winter so that he can be on the market in January. The development of asparagus here is relatively late. Growing asparagus in Shenyang is as popular as growing strawberries in Jiande. But now they are facing the decline of land fertility, and the asparagus planted is no longer as good as our Jiande taste. However, the development of asparagus should not be too blind, because the investment per mu is about 15000. Under normal planting, the yield per mu is 3000 jin, and as long as the average price is more than 3 yuan, the income per mu will be 10, 000 yuan.

The key points of cultivation techniques are as follows:

First, select excellent varieties

Asparagus is a perennial perennial herb with strong adaptability and many varieties. Generally, a new variety UC800 can be selected, which is characterized by early germination, fast growth, symmetrical thickness of tender stem, compact head scale, thick green color, good commodity, high yield, dwarf type, disease resistance and lodging resistance. it is an ideal variety for both green and white bamboo shoots.

2. Cultivate strong seedlings in nutrition bowl

The use of nutrition bowl to raise seedlings is beneficial to improve the seedling rate and cultivate strong seedlings. The transplanting injury is mild, which is conducive to the early development of strong seedlings and achieve the purpose of planting in an appropriate period and high yield in the early stage.

⒈ adequate nutrition bowl: first, choose the loose sandy loam with high fertility level as the seedbed, the seedbed is 1.3-1.5m wide and 10-15m deep. Before making a bowl, 30-40 jin of rotten chicken manure, 2 jin of phosphate fertilizer and 10 jin of plant ash should be applied to each cubic meter of nutritious soil. The diameter of the bowl is more than 8 meters, and the height of the bowl is 10 meters. 2500 bowls are needed for each mu of field.

⒉ soaking seeds to accelerate germination: asparagus seeds have thick shell and lipid, and absorb water slowly. First, soak the seeds with 50% carbendazim 300-500 times solution for 24 hours, then soak the seeds in 25-30 degrees warm water for 2-3 days, and change the new water 2-3 times a day. After soaking the seeds, wrap them with clean gauze, put them under the condition of 25-30 degrees, and sprinkle them with warm water of about 25 degrees a day for 1-2 times a day. The seeds can be sown as soon as the seeds are white.

⒊ suitable sowing time: transplanting before wheat can sow in the first and middle of March, and transplanting after wheat can sow in the first and middle of April. Before sowing, the nutrition bowl is watered thoroughly, one grain per bowl, and the fine soil is 2 square meters thick after sowing. And then use poison bait to prevent underground pests. Finally, the border is covered with plastic film, and the border is covered with double film.

⒋ nursery bed management: nursery bed management should focus on regulating temperature and humidity, cultivating strong seedlings and preventing diseases and insect pests. Before emergence, the bed temperature is 20-30 degrees during the day and not less than 12 degrees at night. When the first 70% of the seedlings were unearthed, the plastic film was removed and the seedlings were gradually ventilated. When the height of the seedlings is about 20 cm, the method of ventilation without uncovering the film can be adopted to make the seedlings adapt to the external environment. Keep the seedbed moist during this period. The thin and weak seedlings should be supplemented with seedling fertilizer and combined with water. Timely removal of seedbed weeds, detection of aphids and other hazards timely spray control.

Control of diseases and insect pests

The main disease is asparagus stem blight. So far, there is no radical cure for the disease, only prevention.

Soil disinfection: that is, using 50% thiram powder 2kg, mixing fine soil 50kg, combined with phoxim granules or chlorpyrifos granules to kill underground pests, one-time application during soil preparation. It can also be applied in ditches or at acupoints.

Clear the garden thoroughly: the stems and branches of the aboveground part of the bamboo shoot field are transported out of the field and treated innocuously. Clearing the garden in winter and spring is as important as turning the stem to clear the garden in autumn.

Chemical root irrigation: the root can be irrigated with 45% Schenanin 300 times solution.

From the end of May to the end of August, fungicides should be sprayed alternately, such as metoprolol, metoprolol, etc., and should be sprayed in time after rain, or copper preparation can be used alternately twice to strengthen the protective function.

Insect pests mainly refer to underground pests: they are generally applied together with fungicides. Aboveground pests are mainly night moth pests, such as beet armyworm, cotton bollworm, etc., which can be sprayed with pyrethroids pesticides and chlorpyrifos.

Chemical root irrigation: the root can be irrigated with 45% Schenanin 300 times solution.

From the end of May to the end of August, fungicides should be sprayed alternately, such as metoprolol, metoprolol, etc., and should be sprayed in time after rain, or copper preparation can be used alternately twice to strengthen the protective function.

Insect pests mainly refer to underground pests: they are generally applied together with fungicides. Aboveground pests are mainly night moth pests, such as beet armyworm, cotton bollworm, etc., which can be sprayed with pyrethroids pesticides and chlorpyrifos.