Seed propagation techniques of honeysuckle in spring

Black fruits were picked in January After 5-7 days of ripening, wash the peel and pulp in clear water, and then dry them in the shade Do not expose to the sun, and then winnow the seeds for storage Seed treatment: soak the seeds in 35-40 ℃ warm water for 24 hours before sowing, pull out and mix with 2-3 times of wet sand, cover with plastic film, and put them in a warm place to promote germination When the rate of seed cracking reaches 50%, the seeds can be sown Sowing time: spring sowing can be in the first ten days of March Preparation of seedbed before sowing: turn the seedbed for drought resistance, generally turn the seedbed for 50 cm, apply enough base fertilizer, apply 6000-7500 kg of base fertilizer and 40-50 kg of ammonium bicarbonate per 667 square meters, rake and level up, and remove the remaining weeds In order to prevent underground pests, 1.5-2kg or 0.15-0.25kg of phoxim emulsion can be spread every 667m2 Some zinc sulfate or ferrous sulfate can be applied properly to prevent seedling diseases It can be 1 m wide, 20 cm high and 10-15 m long for car opening Sowing: full chamber sowing, 1.0-1.2kg per 667m2 First level the surface of the chamber, water the chamber and fill it with water After the water seeps into the chamber, add 1 time of sand to the sand soaked or stored, and evenly sprinkle it into the chamber, cover with fine sand soil of 0.5-0.7cm, and then cover with straw curtain or mulch film Management after sowing: water management after sowing is very important, which directly affects the emergence rate Because the seeds of honeysuckle are small, the soil should be strictly prevented from hardening and cracking before the seedlings are unearthed Check every day Spray water once with a watering can in the morning or evening when the straw curtain is covered Spray when the membrane is covered, i.e spray water on the water shortage block When about 30% of the seedlings are unearthed, the mulch shall be removed, and the chamber surface shall be kept moist by frequent irrigation after the seedlings are fully raised Weeding, loosening soil and watering should be carried out frequently during the growth period of seedlings Depending on the seedling situation, nitrogen fertilizer can be applied, 7-10 kg per 667 square meters When the height of the seedling is 15-20cm, the heart should be removed, and the new branches should be developed, and then it should be carried out 2-3 times continuously In July, each plant can have 4-8 branches, and it can be planted out of the nursery in autumn.