Lonicera maackii has two propagation methods: sowing and cutting. In spring, you can sow and propagate, and in summer, you can use the semi-lignified branches of that year for twig cutting. One-year-old robust branches can also be selected for hard branch cutting in autumn.

sow seeds

After the seeds are fully matured in June10-June 65438+June 65438+1October every year, the fruits are mashed, washed with clear water, the pulp is rubbed off, the pure seeds are selected with water, dried in the shade, and stored until the middle and late June of the following year, and the seeds are taken out to accelerate germination. Soak the seeds in warm water for 3 hours, take them out, mix them into 2-3 times of wet sand, and place them in the leeward and sunny places to increase the temperature and accelerate germination. Cover them with plastic film to keep them moist, frequently plough, replenish water and keep warm. In the middle and late March, the seeds can be sown when they begin to germinate. Seedbed furrow drilling, row spacing of 20-25cm, furrow depth of 2-3cm, sowing amount of 50g/ 10_, covering soil about 1cm, and then covering agricultural film to keep moisture, so as to improve the ground temperature. Seedling can emerge in 20-30 days after sowing, and the agricultural film is removed and interplanted in time after seedling emergence. When the seedling height is 4-5cm, the seedling spacing is 10- 15cm. Topdressing urea once in May and June, and applying 15-20kg every 667 days. Watering in time, intertillage weeding, the seedlings can reach more than 40cm in that year.

Cutting propagation method

Generally, hardwood cuttings are used in late autumn, and small arch sheds or sunshine beds are used for moisture preservation and heat preservation. 10-1/3 when the trees have fallen more than 65438 in1October, take the robust branches of that year and cut them into cuttings of about 10cm, and use ABT/50 10-6 before inserting. Cutting density is 5cm 10cm, 200 plants/_, and the cutting depth is 3/4 of the cutting depth. Water it once after cutting. Generally, it can take root before freezing, and germinate and branch in March-April of the following year. After survival, apply urea once a month, every 667 _ 65,438+00 kg, and apply NPK compound fertilizer once after beginning of autumn to promote the stem thickening and lignification. When the seedlings are over 50 cm tall. Softwood cutting can also be carried out in the middle and late June, with proper management and high survival rate, and annual robust branches can also be selected for hard cutting in autumn. Cut the cuttings about 15 ~ 20cm long, and keep the top 2 ~ 4 leaves. Insert the cuttings into clean river sand to a depth of 1/3 to 1/2 of the length. After transplanting, properly shade and moisturize, and transplant in the nursery after the root system is strong enough.

cultivation techniques

Prepare cuttings

The optimum growth temperature is 14-28℃, and the overwintering temperature is not lower than-15℃. More new branches will grow in precious wood every year, so some old branches should be cut off to play the role of shaping, pruning and renewing branches. This treatment is also helpful to produce high-quality precious wood cuttings.

First of all, we should choose the current year's article born on a strong mother plant; The cutting time is from June to August; Soak in 100PPMABT rooting powder for two hours before cutting; 2-2.5 cm deep; Keep the temperature at 20-30 degrees; Keep a certain humidity; The survival rate is above 98%.

Secondary seedling raising

In the spring of the second year after breeding, transplant the seedlings in time and expand the plant spacing, which can be planted according to the plant spacing of 40 cm and 50 cm. Top dressing 3-4 times a year, and you can leave the garden after 2 years of cultivation. Or every other plant is removed to become 50 cm and 80 cm, and the large seedlings are continuously cultivated. If the tree is cultivated, one strong branch should be cut off after transplanting, the rest branches should be drained, and the sprouting lateral branches and tillers at the lower part should be picked in time to control their growth and promote the growth of the trunk.

Preharvest management

The planting density is 2-3m2 1 plant. Lonicera macranthoides is slightly drought-tolerant, but it grows well in a slightly moist and dry soil environment. When planting, in addition to applying appropriate amount of pig manure as base fertilizer, liquid fertilizer should be applied every two months during the vigorous growth period. Honeysuckle likes strong light, and the time to receive direct sunlight every day should not be less than 4 hours. It grows well in a cool environment. Good ventilation in the environment is conducive to the smooth photosynthesis of plants. Honeysuckle likes warm environment and is cold-resistant. It can be wintered in the open air in most parts of northern China. The optimum growth temperature is 14-28℃, and the overwintering temperature is not lower than-15℃. Honeysuckle will grow more new branches every year, so it is necessary to cut off some old branches to play the role of shaping, pruning and updating branches. This treatment is also helpful to produce high quality honeysuckle cuttings.