Asparagus is one of the important varieties of exported vegetables, second only to mushrooms. Asparagus is known as the king of vegetables. It is rich in nutrients and delicious medicine. It can inhibit tumor cell growth and treat cancer. It can prevent and treat diseases such as hypertension, heart disease, cystitis, nephritis and edema. It can resist fatigue and increase appetite. It can remove toxic substances produced by metabolic processes in the human body and improve people's immune function. From the domestic and international markets, over the years, there has been an oversupply, especially in foreign markets. The demand is large, the price is high and stable, the initial product purchase price is 4-6 yuan per kilogram, and the annual output per mu is 800kg or more. Industry structure adjustment, the most effective way for farmers to get rich. Asparagus is a perennial perennial plant. It is different from ordinary vegetables and crops. After sowing, nursery, and planting in the field, it can continuously collect bamboo shoots for 10 to 15 years. Except for the first year's capital and labor input, from the following year, only fertilizer, Labor input for pesticides and field management. Asparagus is put into production faster, and it can reach 400kg in the second year of planting. In the third year, it will enter the prolific period, and the output per mu can reach 800kg or more. The main cultivation points are as follows. 1. Lot selection. Sites that are mulberry gardens, orchards or woodlands should be avoided. Because the residues in the soil are easily rotted to produce purple plumes, they are easily transmitted to asparagus, causing root rot and causing serious damage. Asparagus is drought-tolerant and should avoid the low-lying terrain. 2. Choose a good variety. High-yield, high-quality, high-efficiency and adaptable Apollo P1 hybrids and purple passion varieties should be selected. 3. Nursery. The seedling time starts in early May or begins in mid-July. If the field is raised, the asparagus seeds are thick and difficult to germinate and must be germinated. The specific method is to soak for 55 minutes in hot water at 55 degrees Celsius for 15 minutes, then soak for 24 hours with warm water at 25 degrees Celsius, and then germination for 48 hours. When 5% of the seeds are "white", they can be sown. 4. Colonization. It is necessary to colonize the north and south rows, the plant spacing is 0.3mx1.3m, and the planting density is 1700 plants per mu. Before planting, the ditch shall be ditched by 1.3m line spacing. 1000kg of chicken manure and 40kg of compound fertilizer shall be applied per mu of ditch. After backfilling the soil to 15cm away from the ground, it can be planted. 5. Field management after planting. The goal of field management after planting is to enable rapid production of seedlings so that they can enter the harvesting season early. The specific measures are cultivating loose soil and replenishing seedlings and weeding; rational interplanting, suitable for dwarf peanuts, can improve land utilization rate, increase economic income; timely control pests and diseases; do a good job of clearing ditch drainage, preventing water accumulation after rain When the ground power is insufficient, the topdressing is timely. 6. Harvest. When the height of the upper stem is more than 1.5m or the base of the newly unearthed stem is more than 0.7cm, the shoot can be started. Pay attention to the observation during the bamboo shoots. When the diameter of the bamboo shoots is thinner, stop the stems. In order to increase the yield, the bamboo shoots can be taken. In the period of collecting bamboo shoots, it is possible to apply no fertilizer, and apply potassium-based compound fertilizer when putting stems. Watering should be done frequently during the harvesting period, once every 10 days, alternately pouring water and pouring small water. 7. Dormancy period. The northern part of the asparagus in the north turns yellow in the winter, and the frozen water is to be sealed before the freezing. 8. Pest control 1 pest. Insect pests are divided into two major categories of pests and underground pests. Ground pests that are more harmful to asparagus are negative mud worms, aphids, moth pests, and the like. For the prevention and control of negative mud insects, the biological control can be carried out by the larvae, and the chemical control can be sprayed with trichlorfon or deltamethrin. Aphid control can be evaded by yellow trap or silver ash film. The underground pests that are more harmful to asparagus are four species of cockroaches, cockroaches, golden worms and tigers. It is one of the most effective methods to trap and kill four kinds of pests. It is strictly forbidden to use medicine during the bamboo shooting period. The production period can be rooted with phoxim, 400ml per mu. 2 diseases. The diseases of asparagus are also divided into above-ground diseases and underground diseases. The aboveground diseases are mainly brown spot disease of stem blight. Comprehensive methods must be adopted for control methods. Spring bamboo shoots thoroughly clear the garden before burning bamboo shoots, burnt the residual branches, apply 2 to 3 kg of emperor per acre; reasonably collect bamboo shoots to prevent plants from becoming weak and susceptible to disease; formula fertilization, avoid applying more nitrogen fertilizer, apply more farmyard manure; The membrane is protected from splashing rain; when the stem is stopped, 600 times of carbendazim and nails are sprayed alternately 4 to 5 times. The underground disease is mainly root rot. The disease is mainly based on prevention, avoiding forest land, orchard, mulberry garden and other plots when planting, strengthening fertilizer and water management, adding organic fertilizer, promoting root growth and strengthening disease resistance, and improving the disease resistance of bamboo shoots. The plant was excavated in time and the soil was disinfected with 20% lime water or dipyridamole. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Ningbo Reliance Security Technology CO.,Ltd , https://www.reliancesafes.com