Sowing and Seedling raising of Honeysuckle (2)

(4) soaking seeds in warm water: this method can be used if for some reason or forget sand storage but the sowing time is approaching. In the first ten days of March, soak the seeds in warm water of 35 ℃ and 40 mol for 24 hours, remove and mix 3 times of wet sand, cover with plastic film, and place in a warm place to promote germination. When the crack rate of the seed reaches 50%, it can be sown. The emergence rate of this method is 20%-30% lower than that of sand storage, and the emergence is irregular.

(5) soil preparation: the nursery land should be deeply ploughed in late autumn or early spring, and apply sufficient base fertilizer, generally 50 cm deep, applying base fertilizer 6000rel 7500kg per mu, ammonium bicarbonate 40-50kg, raking fine and leveling to remove residual roots and weeds. If the base fertilizer is insufficient, it can also be applied when making beds in spring.

In order to control underground pests, 1.5 kg of methamphetamine powder or 0.15-0.25 kg of phoxim emulsion can be applied per mu. If it is an old nursery, zinc sulfate and ferrous sulfate can be properly applied to prevent seedling diseases. Using flat border to raise seedlings, the width of the border is 1 meter, the ridge width is 0.2 meters, and the length is 1.5 meters.

(6) sowing: winter sowing should be before the soil is frozen, and spring sowing is usually in mid-March. Winter sowing sprouts early, takes deep roots, has strong drought resistance, and seedlings grow vigorously. However, due to small seeds, shallow soil cover, vulnerable to bird damage, often uneven emergence, bird prevention measures should be strengthened.

The seed amount per mu is 1.0-1.2 kg with full bed sowing. First leveling the border surface, watering and flooding, and so on, after the water seeps, the stored sand, and then mixed with twice as much sand, is evenly sprinkled into the border, covered with fine sand soil 0.5 ml 0.7 cm, and then covered with a grass curtain to prevent the border surface from cracking.

(7) Management after sowing: as honeysuckle seeds are very small, soil consolidation and cracking should be strictly prevented before seedlings are unearthed. It is a windy and dry period in spring, so you should spray water with a spray can every morning or evening. When about 30% of the seedlings are unearthed, remove the grass curtain cover and wait for the seedlings to be fully irrigated. Keep 15-160000 seedlings per mu. In the future, weeding, loosening soil, watering and other management should be carried out frequently.

During the seedling growth period, urea 2Mel was applied 3 times according to the seedling condition, each time 7.5-10 kg per mu. When the seedling height is 15 Mel 20 cm, coring is carried out to promote new shoots, and then 2 Mel is carried out 3 times in a row. Each plant can have 8 branches in July, and can be planted out of the nursery when the rainy season comes.