Preparation before cutting firecracker cuttings
Cuttings selection
Generally, it is suitable to select 2-year-old vines for cutting from May to June, or from September to October. At this time, select the current year-old semi lignified vines and cut them during the period from the cessation of growth to the differentiation of flower buds. The middle rattan with short internodes, large and full buds and strong growth is suitable for cuttings p>
Cutting processing
There are 3-2 smooth slits. 2-3 leaflets should be reserved at the front section of cuttings, which is conducive to promoting roots. Before transplanting, ABT rooting powder is used for treatment, and then potassium permanganate solution is used for disinfection p>
Cutting method of firecracker flower
With the method of ditching and burying, insert the branches obliquely, half into the substrate, leave one section on the ground, and then irrigate with water p>
Post planting management of firecracker flowers
Light temperature
The temperature in May is generally stable at 20-25 ℃, which is conducive to cutting propagation. When the soil temperature in the seedbed is about 3-5 ℃ higher than the temperature, it is more conducive to rooting. Double layer shading net should be used for shading, and one layer of net can be removed about 2 weeks after insertion. About one month after cutting, most cuttings have formed callus. The shading net should be opened in the morning or evening, and the cuttings should be properly exposed to sunlight to promote rooting p>
Moisture
Generally, keep the cuttings moist and maintain 80% - 90% air humidity at the same time, which is conducive to rooting. Spray water mist 1-2 times a day to increase air humidity. When the sprouting roots grow to about 2 cm, an appropriate amount of water can be added. At the same time, it is best to let the bed soil dry properly after a period of time, and then pour water p>
Fertilization
When the cutting roots grow about 1 cm, liquid fertilizer containing potassium can be sprayed. When most cutting roots are up to 3 cm, three element liquid fertilizer can be poured every half a month or so to promote the growth of leaf buds< span>