The key points of sowing and breeding technology and maintenance management of five-leaf brocade!

Five-leaf Parthenocissus, also known as Five-leaf Parthenocissus, Viticaceae Parthenocissus. Autumn "brocade" is a veritable, different leaves anthocyanin accumulation degree is different, coupled with the difference in carotenoid content, from a distance, really like red, yellow and green three color thread woven brocade. The following is to introduce the sowing and breeding techniques and maintenance management points of the next five leaves.

1. Sowing and propagation techniques of Parthenocissus quinquefolia

1. Seed treatment

From the end of March to the beginning of April of the same year, the seeds were taken out, warmed to room temperature, soaked in warm water of 35~40℃ for 24 hours, then soaked in 5‰ potassium permanganate solution for 15~30 minutes, rinsed with clean water for 3~4 times, mixed with clean and moist river sand according to the ratio of 1∶3, and put into seedling cellar for low temperature moisture preservation. From the end of April to the beginning of May, the seeds are taken out for germination, and sown when 30% of the seeds are cracked and white.

2. Soil preparation for bed

Select flat, good drainage sandy loam land as nursery land, with rotary tiller soil preparation, ensure that the soil loose. High bed seedling was adopted, the height of seedling bed was 10~15cm, width was 1~ 1.2 m, length was 10~20m, width of footpath was 50cm, and diammonium phosphate was applied as base fertilizer 10gm-2.

3. Sowing

The seeds were sown in furrows 2~ 3 cm deep and 20cm apart. The sowing rate was 1.71 kg/667 m ~ 2, i.e. 90~100 seeds/m ~ 2 or 18~20 seeds/row. After sowing, press the seedbed, cover it with a thin layer of larch pine needles, and water it thoroughly.

4. Nurturing management

Watering in due time, generally every 2~ 3 days to irrigate water. Within 3 days after sowing, spray herbicide once, the kind and dosage of herbicide is 24% fruit 20mL mixed with 5% quizalofop-p-ethyl EC 50mL, mixed with 50kg water, sprayed on seedbed. After 20 days or so, the seedlings can be fully grown, the emergence rate is higher, up to 90%, the growth quantity is larger, the average ground diameter can reach 0.37 cm, and the main vine is longer than 0.9 m.

Seedlings can overwinter in the open field, after defoliation before the soil freezes, the seedbed is watered once to prevent the seedlings from drying up due to water shortage. It can also be stored in cellar by classification.

II. Key points of conservation and management of Parthenocissus quinquefolia

1. Pre-excavation of burial pits. Before winter, choose a leeward place to dig a burial pit with random length and width, but the depth should be more than 100 cm, so as to create a suitable temperature (3℃ to 10℃) and moist environment, which is conducive to the completion of rooting and germination of cuttings during burial.

2. Cut ears into bundles. After late October, select strong disease-free branches, from bottom to top, cut into cuttings of 20 to 25 cm long, with 3 to 5 bud eyes, pay attention to the lowest cut mouth to be 0.5 cm below the base bud eye to facilitate rooting, and then cut the cuttings according to the principle of polarity consistency, squat flat base, arrange into bundles, preferably count and tie firmly, so as to facilitate subsequent operations.

3. Buried soil. After the cuttings are cut into bundles, it is best to bury them in the pit on the same day. When burying, pay attention to the polarity of cuttings, be sure to make the base face down, bundle cuttings can be stacked upright, and then return moist clean soil at the top of cuttings, about 5 cm thick, so that the top of cuttings is not exposed. After that, according to the gradual change of temperature, soil covering should be carried out in stages, and the final accumulated thickness of soil covering should reach 50 to 70 cm before the arrival of the lowest temperature in January.

4. Planting in spring. After 5 months of burying, the cuttings spontaneously produced milky white shoots and white roots in March and April of the following spring. However, at this time, the average ground temperature in the open field is still lower than that in the pit, which is unfavorable for the growth of roots. In addition, the average final frost day has not yet passed, which is unfavorable for the growth of milk buds. Therefore, the planting period should not be too early, otherwise the phenomenon of dead roots returning to buds due to low temperature will occur, which is unfavorable for survival. Specifically, it is most suitable from late April to early May. Of course, when planting at the right time, it is also important to reduce the delay in the middle, try to plant as soon as possible, not to damage the milk buds, white roots, and timely watering after planting. A month after planting, you will see a group of green leaves, which can develop considerably after autumn.

5, five leaf creeper adaptability is strong, both cold (in northeast China can open winter), and heat resistance (also grow well in Guangdong). Parthenocissus five-leaf tolerance barren, drought, shade tolerance, resistance, cultivation management is more extensive. Thinning dead branches after winter and applying thin fertilizer in early spring can promote luxuriant foliage. Nanjing is a continental climate area, so it should be planted at the base of the north wall and the east wall, inclined towards the climbers. To prevent premature baldness and favorable adsorption of vine base, it is advisable to cut more heavily.